Table of Contents

 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 27, 201726, 2018
OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _______ to ______
Commission file number: 001-36823
 
shak-img_shakeshacklogo.jpg
SHAKE SHACK INC.
(Exact name of registrant as specified in its charter)
 
Delaware47-1941186
(State or other jurisdiction of
incorporation or organization)
(IRS Employer
Identification No.)
24 Union Square East, 5th Floor225 Varick Street, Suite 301
New York, New York
1000310014
(Address of principal executive offices)(Zip Code)
(646) 747-7200
(Registrant's telephone number, including area code)
Not applicable
(Former name or former address, if changed since last report)
 

Indicate by check mark if the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. þ Yes o No
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule-405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). þ Yes o No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer  oþ Accelerated filer  þo
Non-accelerated filer  o(Do not check if a smaller reporting company)Smaller reporting companyo
   Emerging growth companyþo
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. þo
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). o Yes þ No
As of October 25, 2017,24, 2018, there were 26,195,74129,371,355 shares of Class A common stock outstanding and 10,534,7927,688,921 shares of Class B common stock outstanding.
 



SHAKE SHACK INC.
TABLE OF CONTENTS

    
 
 
 
 
    
 
 
 
 
 
 
 
    


Cautionary Note Regarding Forward-Looking Information
This Quarterly Report on Form 10-Q ("Form 10-Q") contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995 ("PSLRA"), which are subject to known and unknown risks, uncertainties and other important factors that may cause actual results to be materially different. All statements other than statements of historical fact are forward-looking statements. Many of the forward-looking statements are located in Part I, Item 2 of this Form 10-Q under the heading "Management's Discussion and Analysis of Financial Condition and Results of Operations." Forward-looking statements discuss our current expectations and projections relating to our financial position, results of operations, plans, objectives, future performance and business. You can identify forward-looking statements by the fact that they do not relate strictly to historical or current facts. These statements may include words such as "aim," "anticipate," "believe," "estimate," "expect," "forecast," "outlook," "potential," "project," "projection," "plan," "intend," "seek," "may," "could," "would," "will," "should," "can," "can have," "likely," the negatives thereof and other similar expressions.
While we believe that our assumptions are reasonable, it is very difficult to predict the impact of known factors, and it is impossible to anticipate all factors that could affect our actual results. All forward-looking statements are expressly qualified in their entirety by these cautionary statements. You should evaluate all forward-looking statements made in this Form 10-Q in the context of the risks and uncertainties disclosed in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended, and subsequent Quarterly Reports on Form 10-Q27, 2017 filed with the U.S. Securities and Exchange Commission (the "SEC") under the heading "Risk Factors."
The forward-looking statements included in this Form 10-Q are made only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.


PART I – FINANCIAL INFORMATION
Item 1. Financial Statements (Unaudited).
 Page


SHAKE SHACK INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(UNAUDITED)
(in thousands, except share and per share amounts)
 
 September 27
2017

 December 28
2016

 September 26
2018

 December 27
2017

ASSETSASSETS   ASSETS   
Current assets:Current assets:   Current assets:   
Cash and cash equivalents$26,887
 $11,607
Cash and cash equivalents$29,295
 $21,507
Marketable securities63,299
 62,040
Marketable securities61,800
 63,036
Accounts receivable5,139
 6,006
Accounts receivable9,325
 5,641
Inventories1,127
 806
Inventories1,378
 1,258
Prepaid expenses and other current assets2,057
 3,485
Prepaid expenses and other current assets2,119
 1,757
Total current assets98,509
 83,944
Total current assets103,917
 93,199
Property and equipment, netProperty and equipment, net174,689
 136,264
Property and equipment, net241,702
 187,095
Deferred income taxes, netDeferred income taxes, net322,224
 313,207
Deferred income taxes, net243,021
 185,914
Other assetsOther assets4,515
 4,779
Other assets3,682
 4,398
TOTAL ASSETSTOTAL ASSETS$599,937
 $538,194
TOTAL ASSETS$592,322
 $470,606
LIABILITIES AND STOCKHOLDERS' EQUITYLIABILITIES AND STOCKHOLDERS' EQUITY   LIABILITIES AND STOCKHOLDERS' EQUITY   
Current liabilities:Current liabilities:   Current liabilities:   
Accounts payable$8,639
 $6,921
Accounts payable$9,654
 $8,210
Accrued expenses13,181
 8,538
Accrued expenses22,759
 11,649
Accrued wages and related liabilities5,127
 6,084
Accrued wages and related liabilities7,996
 6,228
Other current liabilities9,817
 10,173
Other current liabilities8,391
 7,937
Total current liabilities36,764
 31,716
Total current liabilities48,800
 34,024
Deemed landlord financingDeemed landlord financing13,162
 2,007
Deemed landlord financing19,867
 14,518
Deferred rentDeferred rent34,780
 31,107
Deferred rent43,476
 36,596
Liabilities under tax receivable agreement, net of current portionLiabilities under tax receivable agreement, net of current portion280,820
 267,902
Liabilities under tax receivable agreement, net of current portion201,077
 158,436
Other long-term liabilitiesOther long-term liabilities2,633
 4,109
Other long-term liabilities7,522
 2,553
Total liabilitiesTotal liabilities368,159
 336,841
Total liabilities320,742
 246,127
Commitments and contingenciesCommitments and contingencies

 

Commitments and contingencies

 

Stockholders' equity:Stockholders' equity:   Stockholders' equity:   
Preferred stock, no par value—10,000,000 shares authorized; none issued and outstanding as of September 27, 2017 and December 28, 2016.
 
Preferred stock, no par value—10,000,000 shares authorized; none issued and outstanding as of September 26, 2018 and December 27, 2017.
 
Class A common stock, $0.001 par value—200,000,000 shares authorized; 26,161,111 and 25,151,384 shares issued and outstanding as of September 27, 2017 and December 28, 2016, respectively.26
 25
Class A common stock, $0.001 par value—200,000,000 shares authorized; 29,371,355 and 26,527,477 shares issued and outstanding as of September 26, 2018 and December 27, 2017, respectively.29
 27
Class B common stock, $0.001 par value—35,000,000 shares authorized; 10,567,792 and 11,253,592 shares issued and outstanding as of September 27, 2017 and December 28, 2016, respectively.11
 11
Class B common stock, $0.001 par value—35,000,000 shares authorized; 7,688,921 and 10,250,007 shares issued and outstanding as of September 26, 2018 and December 27, 2017, respectively.8
 10
Additional paid-in capital147,890
 135,448
Additional paid-in capital192,760
 153,105
Retained earnings28,862
 16,719
Retained earnings31,362
 16,399
Accumulated other comprehensive income (loss)30
 (15)Accumulated other comprehensive loss
 (49)
Total stockholders' equity attributable to Shake Shack Inc.176,819
 152,188
Total stockholders' equity attributable to Shake Shack Inc.224,159
 169,492
Non-controlling interestsNon-controlling interests54,959
 49,165
Non-controlling interests47,421
 54,987
Total equityTotal equity231,778
 201,353
Total equity271,580
 224,479
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITYTOTAL LIABILITIES AND STOCKHOLDERS' EQUITY$599,937
 $538,194
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY$592,322
 $470,606
See accompanying Notes to Condensed Consolidated Financial Statements.


SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(UNAUDITED)
(in thousands, except per share amounts)
 
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

 September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Shack salesShack sales$91,100
 $71,871
 $253,258
 $188,430
Shack sales$115,882
 $91,100
 $324,869
 $253,258
Licensing revenueLicensing revenue3,509
 2,696
 9,416
 6,774
Licensing revenue3,765
 3,509
 10,176
 9,416
TOTAL REVENUETOTAL REVENUE94,609
 74,567
 262,674
 195,204
TOTAL REVENUE119,647
 94,609
 335,045
 262,674
Shack-level operating expenses:Shack-level operating expenses:       Shack-level operating expenses:       
Food and paper costs25,760
 20,393
 71,646
 53,529
Food and paper costs32,703
 25,760
 91,336
 71,646
Labor and related expenses23,806
 18,216
 66,692
 46,640
Labor and related expenses31,232
 23,806
 87,651
 66,692
Other operating expenses9,229
 6,577
 25,380
 17,475
Other operating expenses13,496
 9,229
 36,536
 25,380
Occupancy and related expenses7,522
 6,009
 20,741
 15,541
Occupancy and related expenses8,545
 7,522
 23,621
 20,741
General and administrative expensesGeneral and administrative expenses9,204
 7,885
 27,352
 22,265
General and administrative expenses13,151
 9,204
 37,547
 27,352
Depreciation expenseDepreciation expense5,604
 3,719
 15,610
 10,229
Depreciation expense7,439
 5,604
 20,905
 15,610
Pre-opening costsPre-opening costs2,670
 2,598
 6,961
 6,708
Pre-opening costs3,581
 2,670
 8,031
 6,961
Loss on disposal of property and equipmentLoss on disposal of property and equipment204
 
 317
 
Loss on disposal of property and equipment157
 204
 543
 317
TOTAL EXPENSESTOTAL EXPENSES83,999
 65,397
 234,699
 172,387
TOTAL EXPENSES110,304
 83,999
 306,170
 234,699
OPERATING INCOMEOPERATING INCOME10,610
 9,170
 27,975
 22,817
OPERATING INCOME9,343
 10,610
 28,875
 27,975
Other income, netOther income, net229
 151
 622
 197
Other income, net436
 229
 1,070
 622
Interest expenseInterest expense(475) (89) (1,144) (267)Interest expense(592) (475) (1,770) (1,144)
INCOME BEFORE INCOME TAXESINCOME BEFORE INCOME TAXES10,364
 9,232
 27,453
 22,747
INCOME BEFORE INCOME TAXES9,187
 10,364
 28,175
 27,453
Income tax expenseIncome tax expense2,494
 2,443
 7,537
 6,058
Income tax expense2,241
 2,494
 5,679
 7,537
NET INCOMENET INCOME7,870
 6,789
 19,916
 16,689
NET INCOME6,946
 7,870
 22,496
 19,916
Less: net income attributable to non-controlling interestsLess: net income attributable to non-controlling interests2,873
 3,023
 7,773
 8,163
Less: net income attributable to non-controlling interests1,921
 2,873
 6,359
 7,773
NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$4,997
 $3,766
 $12,143
 $8,526
NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$5,025
 $4,997
 $16,137
 $12,143
Earnings per share of Class A common stock:Earnings per share of Class A common stock:       Earnings per share of Class A common stock:       
Basic$0.19
 $0.16
 $0.47
 $0.38
Basic$0.17
 $0.19
 $0.58
 $0.47
Diluted$0.19
 $0.15
 $0.46
 $0.37
Diluted$0.17
 $0.19
 $0.56
 $0.46
Weighted-average shares of Class A common stock outstanding:Weighted-average shares of Class A common stock outstanding:       Weighted-average shares of Class A common stock outstanding:       
Basic26,024
 24,023
 25,733
 22,310
Basic28,954
 26,024
 27,930
 25,733
Diluted26,477
 24,554
 26,248
 22,805
Diluted29,883
 26,477
 28,820
 26,248
See accompanying Notes to Condensed Consolidated Financial Statements.





SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(UNAUDITED)
(in thousands)
 
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

 September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Net incomeNet income$7,870
 $6,789
 $19,916
 $16,689
Net income$6,946
 $7,870
 $22,496
 $19,916
Other comprehensive income (loss), net of tax:       
Other comprehensive income, net of tax:Other comprehensive income, net of tax:       
Available-for-sale securities(1):
       
Available-for-sale securities(1):
       
 Change in net unrealized holding gains (losses)53
 (11) 36
 (19) Change in net unrealized holding gains (losses)
 53
 (3) 36
 Less: reclassification adjustments for net realized losses included in net income14
 3
 28
 3
 Less: reclassification adjustments for net realized losses included in net income
 14
 16
 28
 Net change67
 (8) 64
 (16) Net change
 67
 13
 64
OTHER COMPREHENSIVE INCOME (LOSS)67
 (8) 64
 (16)
OTHER COMPREHENSIVE INCOMEOTHER COMPREHENSIVE INCOME
 67
 13
 64
COMPREHENSIVE INCOMECOMPREHENSIVE INCOME7,937
 6,781
 19,980
 16,673
COMPREHENSIVE INCOME6,946
 7,937
 22,509
 19,980
Less: comprehensive income attributable to non-controlling interestLess: comprehensive income attributable to non-controlling interest2,893
 3,020
 7,792
 8,157
Less: comprehensive income attributable to non-controlling interest1,921
 2,893
 6,362
 7,792
COMPREHENSIVE INCOME ATTRIBUTABLE TO SHAKE SHACK INC.COMPREHENSIVE INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$5,044
 $3,761
 $12,188
 $8,516
COMPREHENSIVE INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$5,025
 $5,044
 $16,147
 $12,188
(1) Net of tax benefit (expense) of $0 for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016.27, 2017.
See accompanying Notes to Condensed Consolidated Financial Statements.




SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
(UNAUDITED)
(in thousands, except share amounts)
 
  
Class A
Common Stock
  
Class B
Common Stock
  
Additional
Paid-In
Capital

 Retained Earnings
 Accumulated Other Comprehensive Income (Loss)
 
Non-
Controlling
Interest

 
Total
Equity

  Shares
 Amount
 Shares
 Amount
     
BALANCE, DECEMBER 28, 201625,151,384
 $25
 11,253,592
 $11
 $135,448
 $16,719
 $(15) $49,165
 $201,353
 Net income
 
 
 
 
 12,143
 
 7,773
 19,916
 Other comprehensive income:                 
 Net unrealized gains related to available-for-sale securities

 

 

 

 

 

 45
 19
 64
 Equity-based compensation
 

 

 

 3,909
 

 

 

 3,909
 Activity under stock compensation plans323,927
 1
 

 

 3,580
 

 

 2,670
 6,251
 Redemption of LLC Interests685,800
 
 (685,800) 
 2,883
 

 

 (2,883) 
 Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis

 

 

 

 2,070
 

 

 

 2,070
 Distributions paid to non-controlling interest holders              (1,785) (1,785)
BALANCE, SEPTEMBER 27, 201726,161,111
 $26
 10,567,792
 $11
 $147,890
 $28,862
 $30
 $54,959
 $231,778
  
Class A
Common Stock
  
Class B
Common Stock
  
Additional
Paid-In
Capital

 Retained Earnings
 Accumulated Other Comprehensive Income (Loss)
 
Non-
Controlling
Interest

 
Total
Equity

  Shares
 Amount
 Shares
 Amount
     
BALANCE, DECEMBER 27, 201726,527,477
 $27
 10,250,007
 $10
 $153,105
 $16,399
 $(49) $54,987
 $224,479
 Cumulative effect of accounting changes

 

 

 

 


 (1,174) 39
 (439) (1,574)
 Net income

 

 

 

 

 16,137
 

 6,359
 22,496
 Other comprehensive income:                 
 Net change related to available-for-sale securities

 

 

 

 

 

 10
 3
 13
 Equity-based compensation
 

 

 

 4,534
 

 

 

 4,534
 Activity under stock compensation plans282,792
 
 

 

 2,318
 

 

 1,836
 4,154
 Redemption of LLC Interests2,561,086
 2
 (2,561,086) (2) 14,633
 

 

 (14,633) 
 Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis
 

 

 

 18,170
 

 

 

 18,170
 Distributions paid to non-controlling interest holders              (692) (692)
BALANCE, SEPTEMBER 26, 201829,371,355
 $29
 7,688,921
 $8
 $192,760
 $31,362
 $
 $47,421
 $271,580

See accompanying Notes to Condensed Consolidated Financial Statements.




SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
(in thousands)
 
 Thirty-Nine Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 26
2018

 September 27
2017

OPERATING ACTIVITIESOPERATING ACTIVITIES   OPERATING ACTIVITIES   
Net income (including amounts attributable to non-controlling interests)Net income (including amounts attributable to non-controlling interests)$19,916
 $16,689
Net income (including amounts attributable to non-controlling interests)$22,496
 $19,916
Adjustments to reconcile net income to net cash provided by operating activitiesAdjustments to reconcile net income to net cash provided by operating activities   Adjustments to reconcile net income to net cash provided by operating activities   
Depreciation expense15,610
 10,229
Depreciation expense20,905
 15,610
Equity-based compensation3,823
 3,817
Equity-based compensation4,470
 3,823
Deferred income taxes3,056
 121
Deferred income taxes1,996
 3,056
Non-cash interest expense245
 211
Non-cash interest expense72
 245
Excess tax benefits on equity-based compensation
 (35)Loss on sale of marketable securities16
 27
Loss on sale of marketable securities27
 3
Loss on disposal of property and equipment543
 317
Loss on disposal of property and equipment317
 
Unrealized gain on available-for-sale securities(1) 
Changes in operating assets and liabilities:   Net loss on sublease672
 
 Accounts receivable5,628
 1,365
Changes in operating assets and liabilities:   
 Inventories(321) (285) Accounts receivable3,015
 5,628
 Prepaid expenses and other current assets1,844
 196
 Inventories(120) (321)
 Other assets(516) (768) Prepaid expenses and other current assets(540) 1,844
 Accounts payable536
 (53) Other assets(895) (516)
 Accrued expenses4,455
 4,503
 Accounts payable437
 536
 Accrued wages and related liabilities(957) (493) Accrued expenses3,860
 4,455
 Other current liabilities(1,544) 1,448
 Accrued wages and related liabilities1,768
 (957)
 Deferred rent702
 3,863
 Other current liabilities89
 (1,544)
 Other long-term liabilities1,150
 (289) Deferred rent786
 702
 Other long-term liabilities3,216
 1,150
NET CASH PROVIDED BY OPERATING ACTIVITIESNET CASH PROVIDED BY OPERATING ACTIVITIES53,971
 40,522
NET CASH PROVIDED BY OPERATING ACTIVITIES62,785
 53,971
INVESTING ACTIVITIESINVESTING ACTIVITIES   INVESTING ACTIVITIES   
Purchases of property and equipmentPurchases of property and equipment(41,179) (39,268)Purchases of property and equipment(60,144) (41,179)
Purchases of marketable securitiesPurchases of marketable securities(6,675) (60,566)Purchases of marketable securities(910) (6,675)
Sales of marketable securitiesSales of marketable securities6,399
 498
Sales of marketable securities2,144
 6,399
NET CASH USED IN INVESTING ACTIVITIESNET CASH USED IN INVESTING ACTIVITIES(41,455) (99,336)NET CASH USED IN INVESTING ACTIVITIES(58,910) (41,455)
FINANCING ACTIVITIESFINANCING ACTIVITIES   FINANCING ACTIVITIES   
Payments on promissory note
 (313)
Proceeds from deemed landlord financingProceeds from deemed landlord financing530
 
Proceeds from deemed landlord financing793
 530
Payments on deemed landlord financingPayments on deemed landlord financing(154) 
Payments on deemed landlord financing(342) (154)
Distributions paid to non-controlling interest holdersDistributions paid to non-controlling interest holders(2,392) (1,602)Distributions paid to non-controlling interest holders(692) (2,392)
Payments under tax receivable agreementPayments under tax receivable agreement(1,471) 
Payments under tax receivable agreement
 (1,471)
Proceeds from stock option exercisesProceeds from stock option exercises6,567
 2,072
Proceeds from stock option exercises5,103
 6,567
Employee withholding taxes related to net settled equity awardsEmployee withholding taxes related to net settled equity awards(316) 
Employee withholding taxes related to net settled equity awards(949) (316)
Excess tax benefits from equity-based compensation
 35
NET CASH PROVIDED BY FINANCING ACTIVITIESNET CASH PROVIDED BY FINANCING ACTIVITIES2,764
 192
NET CASH PROVIDED BY FINANCING ACTIVITIES3,913
 2,764
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS15,280
 (58,622)
NET INCREASE IN CASH AND CASH EQUIVALENTSNET INCREASE IN CASH AND CASH EQUIVALENTS7,788
 15,280
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIODCASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD11,607
 70,849
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD21,507
 11,607
CASH AND CASH EQUIVALENTS AT END OF PERIODCASH AND CASH EQUIVALENTS AT END OF PERIOD$26,887
 $12,227
CASH AND CASH EQUIVALENTS AT END OF PERIOD$29,295
 $26,887
See accompanying Notes to Condensed Consolidated Financial Statements.


SHAKE SHACK INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)
 

  Page


NOTE 1: NATURE OF OPERATIONS
 
Shake Shack Inc. ("we," "us," "our," "Shake Shack" and the "Company") was formed on September 23, 2014 as a Delaware corporation for the purpose of facilitating an initial public offering and other related transactions in order to carry on the business of SSE Holdings, LLC and its subsidiaries ("SSE Holdings"). WOn February 4, 2015, we completed an initial public offering ("IPO") of 5,750,000 shares of our Class A common stock at a public offering price of $21.00 per share. We used the net proceeds from the IPO to purchase newly-issued membership interests from SSE Holdings ("LLC Interests"). Following the organizational transactions completed in connection with the IPO, we becamee are the sole managing member of SSE Holdings. AsHoldings and, as sole managing member, we operate and control all of the business and affairs of SSE Holdings and, asHoldings. As a result, we consolidate the financial results of SSE Holdings. WeHoldings and report a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. As of September 27, 201726, 2018 we owned 71.2%79.3% of SSE Holdings. Unless the context otherwise requires, "we," "us," "our," "Shake Shack," the "Company" and other similar references, refer to Shake Shack Inc. and, unless otherwise stated, all of its subsidiaries, including SSE Holdings.
We operate and license Shake Shack restaurants ("Shacks"), which serve hamburgers, chicken sandwiches, hot dogs, crinkle-cut fries, shakes, frozen custard, beer, wine and more. As of September 27, 201726, 2018, there were 143188 Shacks in operation, system-wide, of which 79107 were domestic company-operated Shacks, 1011 were domestic licensed Shacks and 5470 were international licensed Shacks.
NOTE 2: SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements include the accounts of Shake Shack Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and on a basis consistent in all material respects with the accounting policies described in our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended27, 2017 ("20162017 Form 10-K"). In our opinion, all adjustments, which are normal and recurring in nature, necessary for a fair presentation of our financial position and results of operation have been included. Certain reclassifications have been made to prior period amounts to conform to the current year presentation. Operating results for interim periods are not necessarily indicative of the results that may be expected for a full fiscal year.
The accompanying Condensed Consolidated Balance Sheet as of December 28, 201627, 2017 has been derived from the audited financial statements at that date but does not include all of the disclosures required by GAAP. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes thereto included in our 20162017 Form 10-K.
SSE Holdings is considered a VIE.variable interest entity. Shake Shack Inc. is the primary beneficiary as we have the majority economic interest in SSE Holdings and, as the sole managing member, have decision making authority that significantly affects the economic performance of the entity, while the limited partners have no substantive kick-out or participating rights. As a result, we consolidate SSE Holdings. The assets and liabilities of SSE Holdings represent substantially all of our consolidated assets and liabilities with the exception of certain deferred taxes and liabilities under the Tax Receivable Agreement. As of September 27, 201726, 2018 and December 28, 2016,27, 2017, the net assets of SSE Holdings were $189,581$228,773 and $158,845,$197,301, respectively. The assets of SSE Holdings are subject to certain restrictions in SSE Holdings' revolving credit agreements. See Note 78 for more information.


Fiscal Year
We operate on a 52/53 week fiscal year ending on the last Wednesday in December. Fiscal 20172018 contains 52 weeks and ends on December 27, 2017.26, 2018. Fiscal 20162017 contained 52 weeks and ended on December 28, 2016.27, 2017. Unless otherwise stated, references to years in this report relate to fiscal years.
Use of Estimates
The preparation of these condensed consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date


of the financial statements, and the reported amounts of sales and expenses during the reporting period. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements     
We adopted the Accounting Standards Updates (“ASUs”) summarized below in fiscal 2017. The effects of adoption did not have a material impact on our consolidated financial statements.2018.
Accounting Standards Update (“ASU”)Description
Date
Adopted
Improvements to Employee Share-Based Payment AccountingRevenue from Contracts with Customers and related standards
(ASU 2016-09)ASU’s 2014-09, 2015-14, 2016-08, 2016-10, 2016-12, 2016-20)

This standard simplifies certain aspects of accountingsupersedes the existing revenue recognition guidance and provides a new framework for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, certain classifications on the statement of cash flows, and an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur. Upon adoption, we made such policy election.recognizing revenue. The adoption methodology applied varied based on each applicable provisioncore principle of the standard is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and none ofservices. The new standard also requires significantly more comprehensive disclosures than the existing standard. Guidance subsequent to ASU 2014-09 has been issued to clarify various provisions had a material impact on our consolidated financial statements.
December 29, 2016
Simplifyingin the Measurement of Inventory (ASU 2015-11)This standard, applies to inventory measured using methods other than last-in, first-out (LIFO) or the retail method,including principal versus agent considerations, identifying performance obligations, licensing transactions, as well as various technical corrections and requires entities to measure such inventory at the lower of cost or net realizable value. It was applied prospectively.December 29, 2016
improvements.

See Note 3 for more information.
Recently Issued Accounting Pronouncements       



Accounting Standards Update (“ASU”)DescriptionExpected ImpactEffective Date
Statement of Cash Flows: Classification of Certain Cash Receipts and Payments (ASU 2016-15)This standard provides guidance on eight specific cash flow issues with the objective of reducing diversity in practice. It should be applied retrospectively to each period presented, subject to certain conditions.We are currently evaluating the impact this standard will have on our consolidated financial statements.December 28, 2017



Accounting Standards Update (“ASU”)DescriptionExpected ImpactEffective Date
Recognition and Measurement of Financial Assets and Financial Liabilities
(ASU 2016-01)
For public business entities, this standard requires: (i) certain equity investments to be measured at fair value with changes in fair value recognized in net income; (ii) a qualitative assessment to identify impairment of equity investments without readily determinable fair values; (iii) elimination of the requirement to disclose the method(s) and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost on the balance sheet; (iv) use of the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (v) separate presentation in other comprehensive income of the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; (vi) separate presentation of financial assets and liabilities by measurement category and form of financial asset in the financial statements; and (vii) an entity to evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets.

The standard should be applied by meansadoption of a cumulative-effect adjustment to the balance sheet at the beginning of the fiscal year of adoption. Early adoption is permitted, subject to certain conditions resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value.
We are currently evaluating the impact this standard willdid not have ona material impact to our consolidated financial statements.

December 28, 2017
Statement of Cash Flows: Classification of Certain Cash Receipts and Payments

(ASU 2016-15)
This standard provides guidance on eight specific cash flow issues with the objective of reducing diversity in practice.

The adoption of this standard did not have a material impact to our consolidated financial statements.
December 28, 2017


Recently Issued Accounting Pronouncements       
Accounting Standards Update (“ASU”)DescriptionExpected ImpactEffective Date
Revenue from Contracts with Customers and related standards
(ASU’s 2014-09, 2015-14, 2016-08, 2016-10, 2016-12, 2016-20)
This standard supersedes the existing revenue recognition guidance and provides a new framework for recognizing revenue. The core principle of the standard is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The new standard also requires significantly more comprehensive disclosures than the existing standard. Guidance subsequent to ASU 2014-09 has been issued to clarify various provisions in the standard, including principal versus agent considerations, identifying performance obligations, licensing transactions, as well as various technical corrections and improvements. This standard may be adopted using either a retrospective or modified retrospective method. Early adoption is permitted.

We are currently in the process of evaluating the impact this standard is expected to have on our consolidated financial statements.Leases

Based on our preliminary assessment, we believe that the pattern and timing of revenue recognition related to the fixed fees associated with our licensing agreements (such as restaurant opening and territory fees) will differ from current policy. Currently, restaurant opening fees are recorded as deferred revenue when received and proportionate amounts are recognized as revenue when a licensed Shack is opened and all material services and conditions related to the fee have been substantially performed. Territory fees are recorded as deferred revenue when received and recognized as revenue on a straight-line basis over the term of the license agreement, which generally begins upon execution of the contract. Under the new standard, we will likely identify the licenses granted to each restaurant under each licensing agreement as separate performance obligations. Accordingly, we would allocate the opening and territory fees to each restaurant and recognize such fees as revenue on a straight-line basis over the individual restaurants’ license terms, which generally begin when the restaurant opens. We do not expect the accounting for the sales-based royalties of our licensing agreements to change from current policy. 

We are still in the process of assessing whether any sales promotions or discounts we currently offer related to our Shack sales could be considered separate performance obligations.

We plan to adopt the standard on December 28, 2017, and we have not yet selected a transition method.

December 28, 2017
Leases
(ASU 2016-02)

ASU's 2016-02, 2018-01, 2018-10, 2018-11)
This standard establishes a new lease accounting model, which introduces the recognition of lease assets and liabilities for those leases classified as operating leases under previous GAAP. It should be applied using a modified retrospective approach applied either at the beginning of the earliest period presented, or at the adoption date, with the option to elect various practical expedients. Early adoption is permitted.
We plan to adopt the standard on December 27, 2018, electing the optional transition method to apply the standard as of the transition date. As a result, we will not apply the standard to the comparative periods presented.

We plan to elect the transition package of three practical expedients permitted under the new standard, which among other things, allows us to carryforward our historical lease classifications. We also made certain preliminary accounting policy elections for new leases post-transition, including the election to combine components. We are currentlyfurther evaluating other optional practical expedients and policy elections, as well as the impact of the standard to our processes, disclosures and internal control over financial reporting.

It is likely that the adoption will have a significant impact to our consolidated balance sheet given the extent of our real estate lease portfolio. We are completing our estimate of the impact, which is dependent on a number of key assumptions and factors, such as the discount rate as of the transition date, and the number of leases we will take possession of by the end of the year. Additionally, we expect that substantially all of our landlord funded assets and deemed landlord financing liabilities will be fully derecognized upon transition.

While we are continuing to assess all impacts of the standard, we currently do not expect our existing operating leases to have a material impact on our statement of income. For those leases where we are involved in construction and deemed to be the accounting owner, we will determine their lease classification. If they result in operating leases, we expect an increase to occupancy and related expenses, and a decrease to interest and depreciation expense post-transition.

We believe our real estate portfolio represents a significant portion of our overall lease portfolio, however, we are still in the process of evaluating other leases, such as equipment and embedded leases.
December 27, 2018

Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

(ASU 2018-15)
This standard provides additional guidance on accounting for costs of implementation activities performed in a cloud computing arrangement that is a service contract. The standard aligns the requirements for capitalizing implementation costs of such arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The standard also clarifies the presentation and classification of the capitalized costs, amortization expense, and the associated treatment in the statement of cash flows by aligning these items with the same treatment for costs of the hosting service itself. Early adoption is permitted, including adoption in any interim period, utilizing either a prospective or retrospective adoption methodology.

We intend on early adopting this standard willduring the fourth quarter 2018, on a prospective basis. We are in the early stages of an implementation of an enterprise-wide system initiative, therefore, we expect to be able to capitalize some implementation costs related to this initiative that previously would have on our consolidated financial statements.been expensed as incurred.

DecemberSeptember 27, 2018




NOTE 3: REVENUE
On December 28, 2017 we adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606), using the modified retrospective method applied to those contracts which were not completed as of December 28, 2017. We elected a practical expedient to aggregate the effect of all contract modifications that occurred before the adoption date, which did not have a material impact to our consolidated financial statements. Results for reporting periods beginning on or after December 28, 2017 are presented under Accounting Standards Codification Topic 606 ("ASC 606"). Prior period amounts were not revised and continue to be reported in accordance with ASC Topic 605 ("ASC 605"), the accounting standard then in effect.
Upon transition, on December 28, 2017, we recorded a decrease to opening equity of $1,574, net of tax, of which $1,135 was recognized in retained earnings and $439 in non-controlling interest, with a corresponding increase of $1,769 in other long-term liabilities, a decrease of $68 in other current liabilities, and an increase of $100 to accounts receivable.
Revenue Recognition
Revenue consists of Shack sales and licensing revenue. Generally, revenue is recognized as promised goods or services transfer to the guest or customer in an amount that reflects the consideration we expect to be entitled in exchange for those goods or services.
Revenue from Shack sales is presented net of discounts and recognized when food, beverage and retail products are sold. Sales tax collected from customers is excluded from Shack sales and the obligation is included in sales tax payable until the taxes are remitted to the appropriate taxing authorities. Revenue from our gift cards is deferred and recognized upon redemption.
Licensing revenues include initial territory fees, Shack opening fees, and ongoing sales-based royalty fees from licensed Shacks. Generally, the licenses granted to develop, open, and operate each Shack in a specified territory are the predominant goods or services transferred to the licensee in our contracts, and represent distinct performance obligations. Ancillary promised services, such as training and assistance during the initial opening of a Shack, are typically combined with the licenses and considered as one performance obligation per Shack. We determine the transaction price for each contract, which is comprised of the initial territory fee, and an estimate of the total Shack opening fees we expect to be entitled to. The calculation of total Shack opening fees included in the transaction price requires judgment, as it is based on an estimate of the number of Shacks we expect the licensee to open. The transaction price is then allocated equally to each Shack expected to open. The performance obligations are satisfied over time, starting when a Shack opens, through the end of the term of the license granted to the Shack. Because we are transferring licenses to access our intellectual property during a contractual term, revenue is recognized on a straight-line basis over the license term. Generally, payment for the initial territory fee is received upon execution of the licensing agreement, and payment for the restaurant opening fees are received either in advance of or upon opening the related restaurant. These payments are initially deferred and recognized as revenue as the performance obligations are satisfied, which occurs over a long-term period.
Revenue from sales-based royalties is recognized as the related sales occur.
Prior to the adoption of ASC 606, Shack opening fees were recorded as deferred revenue when received and proportionate amounts were recognized as revenue when a licensed Shack opened and all material services and conditions related to the fee were substantially performed. Territory fees were recorded as deferred revenue when received and recognized as revenue on a straight-line basis over the term of the license agreement, which generally began upon execution of the contract.


Revenue recognized for the thirteen and thirty-nine weeks ended September 26, 2018 under ASC 606 and revenue that would have been recognized for the thirteen and thirty-nine weeks ended September 26, 2018 had ASC 605 been applied is as follows:
 Thirteen Weeks Ended September 26, 2018  Thirty-Nine Weeks Ended September 26, 2018 
 As reported under ASC 606
 If reported under ASC 605
 Increase (decrease)
 As reported under ASC 606
 If reported under ASC 605
 Increase (decrease)
Shack sales$115,882
 $115,882
 $
 $324,869
 $324,869
 $
Licensing revenue3,765
 3,909
 (144) 10,176
 10,581
 (405)
Total revenue$119,647
 $119,791
 $(144) $335,045
 $335,450
 $(405)

Revenue recognized during the thirteen and thirty-nine weeks ended September 26, 2018 (under ASC 606) and thirteen and thirty-nine weeks ended September 27, 2017 (under ASC 605) disaggregated by type is as follows:
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Shack sales$115,882
 $91,100
 $324,869
 $253,258
Licensing revenue:       
Sales-based royalties3,660
 3,318
 9,951
 8,918
Initial territory and opening fees105
 191
 225
 498
Total revenue$119,647
 $94,609
 $335,045
 $262,674

The aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of September 26, 2018 is $11,332. We expect to recognize this amount as revenue over a long-term period, as the license term for each Shack ranges from 5 to 20 years. This amount excludes any variable consideration related to sales-based royalties.
Contract Balances
Opening and closing balances of contract liabilities and receivables from contracts with customers is as follows:
 September 26
2018

 December 28
2017

Shack sales receivables$2,460
 $2,184
Licensing receivables3,187
 1,522
Gift card liability1,358
 1,472
Deferred revenue, current291
 265
Deferred revenue, long-term7,027
 3,742

Revenue recognized during the thirteen and thirty-nine weeks endedSeptember 26, 2018 that was included in their respective liability balances at the beginning of the period is as follows:
 
Thirteen Weeks Ended
September 26 2018

 
Thirty-Nine Weeks Ended
September 26 2018

Gift card liability$59
 $467
Deferred revenue, current67
 185



NOTE 4: FAIR VALUE MEASUREMENTS
 
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following tables present information about our financial assets and liabilities measured at fair value on a recurring basis as of September 27, 201726, 2018 and December 28, 201627, 2017, and indicate the classification within the fair value hierarchy.
Cash, Cash Equivalents and Marketable Securities
The following tables summarize our cash, cash equivalents and marketable securities by significant investment categories as of September 27, 201726, 2018 and December 28, 2016:27, 2017:
 September 27, 2017  September 26, 2018 
Cost Basis
  Gross Unrealized Gains
  Gross Unrealized Losses
  Fair Value
  Cash and Cash Equivalents
 Marketable Securities
Cost Basis
  Gross Unrealized Gains
  Gross Unrealized Losses
  Fair Value
  Cash and Cash Equivalents
 Marketable Securities
CashCash$21,862
 $
 $
 $21,862
 $21,862
 $
Cash$24,290
 $
 $
 $24,290
 $24,290
 $
Level 1:Level 1:           Level 1:           
Money market funds5,025
 
 
 5,025
 5,025
 
Money market funds5,005
 
 
 5,005
 5,005
 
Mutual funds60,769
 60
 
 60,829
 
 60,829
Mutual funds61,860
 
 (60) 61,800
 
 61,800
Level 2:Level 2:           Level 2:           
Corporate debt securities(1)
2,493
 2
 (25) 2,470
 
 2,470
Corporate debt securities(1)

 
 
 
 
 
TotalTotal$90,149
 $62
 $(25) $90,186
 $26,887
 $63,299
Total$91,155
 $
 $(60) $91,095
 $29,295
 $61,800
 December 28, 2016  December 27, 2017 
Cost Basis
  Gross Unrealized Gains
  Gross Unrealized Losses
  Fair Value
  Cash and Cash Equivalents
 Marketable Securities
Cost Basis
  Gross Unrealized Gains
  Gross Unrealized Losses
  Fair Value
  Cash and Cash Equivalents
 Marketable Securities
CashCash$6,322
 $
 $
 $6,322
 $6,322
 $
Cash$16,138
 $
 $
 $16,138
 $16,138
 $
Level 1:Level 1:           Level 1:           
Money market funds5,285
 
 
 5,285
 5,285
 
Money market funds5,369
 
 
 5,369
 5,369
 
Mutual funds60,232
 
 
 60,232
 
 60,232
Mutual funds60,985
 
 (61) 60,924
 
 60,924
Level 2:Level 2:           Level 2:           
Corporate debt securities(1)
2,473
 3
 (30) 2,446
 
 2,446
Corporate debt securities(1)
2,125
 2
 (15) 2,112
 
 2,112
TotalTotal$74,312
 $3
 $(30) $74,285
 $11,607
 $62,678
Total$84,617
 $2
 $(76) $84,543
 $21,507
 $63,036
(1)Corporate debt securities were measured at fair value using a market approach utilizing observable prices for identical securities or securities with similar characteristics and inputs that are observable or can be corroborated by observable market data.

On December 28, 2017, we adopted ASU 2016-01, which requires certain equity investments to be measured at fair value with changes in fair value recognized in net income. Net unrealizedunrealized gains on available-for-sale equity securities totaling $37$62 and net$1 were included on the Condensed Consolidated Statements of Income during the thirteen and thirty-nine weeks endedSeptember 26, 2018, respectively. Net unrealized losses on available-for-sale securities totaling $27$74 were included in accumulated other comprehensive income (loss) on the Condensed Consolidated Balance Sheet as of SeptemberDecember 27, 2017 and December 28, 2016, respectively.2017.


The following tables summarize the gross unrealized losses and fair values for those investments that were in an unrealized loss position as of September 27, 201726, 2018 and December 28, 2016,27, 2017, aggregated by investment category and the length of time that individual securities have been in a continuous loss position:
  September 27, 2017 
  Less than 12 Months  12 Months or Greater  Total 
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Money market funds$
 $
 $
 $
 $
 $
 Mutual funds
 
 
 
 
 
 Corporate debt securities1,638
 (9) 322
 (16) 1,960
 (25)
Total$1,638
 $(9) $322
 $(16) $1,960
 $(25)
  September 26, 2018 
  Less than 12 Months  12 Months or Greater  Total 
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Money market funds$
 $
 $
 $
 $
 $
 Mutual funds61,800
 (60) 
 
 61,800
 (60)
 Corporate debt securities
 
 
 
 
 
Total$61,800
 $(60) $
 $
 $61,800
 $(60)
  December 28, 2016 
  Less than 12 Months  12 Months or Greater  Total 
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Money market funds$
 $
 $
 $
 $
 $
 Mutual funds
 
 
 
 
 
 Corporate debt securities1,244
 (10) 540
 (20) 1,784
 (30)
Total$1,244
 $(10) $540
 $(20) $1,784
 $(30)
  December 27, 2017 
  Less than 12 Months  12 Months or Greater  Total 
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Fair Value
 Unrealized Loss
 Money market funds$
 $
 $
 $
 $
 $
 Mutual funds60,924
 (61) 
 
 60,924
 (61)
 Corporate debt securities1,675
 (12) 162
 (3) 1,837
 (15)
Total$62,599
 $(73) $162
 $(3) $62,761
 $(76)

A summary of other income from available-for-sale securities recognized during the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 201627, 2017 is as follows:
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Available-for-sale securities:Available-for-sale securities:       Available-for-sale securities:       
Dividend income$222
 $133
 $591
 $133
Dividend income$373
 $222
 $977
 $591
Interest income19
 22
 58
 68
Interest income
 19
 7
 58
Loss on investments(12) (4) (27) (4)Realized gain (loss) on sale of investments1
 (12) (15) (27)
Unrealized gain (loss) on available-for-sale equity securities62
 
 1
 
Total other income, netTotal other income, net$229
 $151
 $622
 $197
Total other income, net$436
 $229
 $970
 $622

A summary of available-for-sale securities sold and gross realized gains and losses recognized during the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 201627, 2017 is as follows:
  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

Available-for-sale securities:       
 Gross proceeds from sales and redemptions$584
 $176
 $1,212
 $498
 Cost basis of sales and redemptions597
 180
 1,239
 502
 Gross realized gains included in net income1
 
 1
 1
 Gross realized losses included in net income(13) (4) (28) (5)
 Amounts reclassified out of accumulated other comprehensive loss14
 3
 28
 3
  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Available-for-sale securities:       
 Gross proceeds from sales and redemptions$
 $584
 $2,144
 $1,212
 Cost basis of sales and redemptions
 597
 2,160
 1,239
 Gross realized gains included in net income
 1
 2
 1
 Gross realized losses included in net income
 (13) (18) (28)
 Amounts reclassified out of accumulated other comprehensive loss
 14
 16
 28



Realized gains and losses are determined on a specific identification method and are included in other income, net on the Condensed Consolidated Statements of Income.
The estimated fair value of our investments in corporate debt securities that are accounted for as available-for-sale securities are all due within one year and are included within marketable securities on the Condensed Consolidated Balance Sheets.
We periodically review our marketable securities for other-than-temporary impairment. We consider factors such as the duration, severity and the reason for the decline in value, the potential recovery period and our intent to sell. For our debt securities, we also consider whether (i) it is more likely than not that we will be required to sell the debt securities before recovery of their amortized cost basis, and (ii) the amortized cost basis cannot be recovered as a result of credit losses. As of September 27, 201726, 2018 and December 28, 2016,27, 2017, the declines in the market value of our marketable securities investment portfolio were considered to be temporary in nature.
Other Financial Instruments
The carrying value of our other financial instruments, including accounts receivable, accounts payable, and accrued expenses as of September 27, 201726, 2018 and December 28, 201627, 2017 approximated their fair value due to the short-term nature of these financial instruments.
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
Assets and liabilities that are measured at fair value on a non-recurring basis include our long-lived assets and indefinite-lived intangible assets. There were no impairments recognized during the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016.27, 2017.
NOTE 4:5: INVENTORIES
 
Inventories as of September 27, 201726, 2018 and December 28, 201627, 2017 consisted of the following:
September 27
2017

 December 28
2016

September 26
2018

 December 27
2017

Food$774
 $543
$977
 $874
Wine55
 47
72
 69
Beer75
 58
95
 85
Beverages102
 79
168
 111
Retail merchandise121
 79
66
 119
Inventories$1,127
 $806
$1,378
 $1,258



NOTE 5:6: PROPERTY AND EQUIPMENT
 
Property and equipment as of September 27, 201726, 2018 and December 28, 201627, 2017 consisted of the following:
September 27
2017

 December 28
2016

September 26
2018

 December 27
2017

Leasehold improvements$146,939
 $120,629
$197,565
 $166,963
Landlord funded assets6,555
 
12,782
 7,472
Equipment28,139
 23,194
36,325
 31,608
Furniture and fixtures9,082
 7,342
12,381
 10,128
Computer equipment and software10,966
 8,710
16,073
 12,721
Construction in progress (includes assets under construction from deemed landlord financing)25,608
 13,510
Construction in progress (includes landlord funded assets under construction)44,302
 16,458
Property and equipment, gross227,289
 173,385
319,428
 245,350
Less: accumulated depreciation52,600
 37,121
77,726
 58,255
Property and equipment, net$174,689
 $136,264
$241,702
 $187,095
NOTE 6:7: SUPPLEMENTAL BALANCE SHEET INFORMATION
 
The components of other current liabilities as of September 27, 201726, 2018 and December 28, 201627, 2017 are as follows:
September 27
2017

 December 28
2016

September 26
2018

 December 27
2017

Sales tax payable$1,539
 $1,324
$2,787
 $1,813
Current portion of liabilities under tax receivable agreement3,140
 4,580
947
 937
Gift card liability1,003
 1,153
1,358
 1,472
Deferred compensation2,400
 
Other1,735
 3,116
3,299
 3,715
Other current liabilities$9,817
 $10,173
$8,391
 $7,937

NOTE 7:8: DEBT
 
In January 2015, we executed a Third Amended and Restated Credit Agreement, which became effective on February 4, 2015 (together with the prior agreements and amendments, and as further amended, the "Revolving Credit Facility"), which provides for a revolving total commitment amount of $50,000, of which $20,000 is available immediately. The Revolving Credit Facility will mature and all amounts outstanding will be due and payable five years from the effective date. The Revolving Credit Facility permits the issuance of letters of credit upon our request of up to $10,000. Borrowings under the Revolving Credit Facility bear interest at either: (i) LIBOR plus a percentage ranging from 2.3% to 3.3% or (ii) the prime rate plus a percentage ranging from 0.0% to 0.8%, depending on the type of borrowing made under the Revolving Credit Facility. As of September 27, 201726, 2018 and December 28, 2016,27, 2017, there were no amounts outstanding under the Revolving Credit Facility. As of September 27, 2017,26, 2018, we had $19,317 of availability under the Revolving Credit Facility, after giving effect to $683 in outstanding letters of credit.
The Revolving Credit Facility is secured by a first-priority security interest in substantially all of the assets of SSE Holdings and the guarantors. The obligations under the Revolving Credit Facility are guaranteed by each of SSE Holdings' wholly-owned domestic subsidiaries (with certain exceptions).


The Revolving Credit Facility contains a number of covenants that, among other things, limit our ability to, subject to specified exceptions, incur additional debt; incur additional liens and contingent liabilities; sell or dispose of assets; merge with or acquire other companies; liquidate or dissolve ourselves; pay dividends or make distributions; engage in businesses that are not in a related line of business; make loans, advances or guarantees; engage in transactions with affiliates; and make investments. In addition, the Revolving Credit Facility contains certain cross-default provisions. We are required to maintain a specified consolidated fixed-charge coverage ratio and a specified funded net debt to adjusted EBITDA ratio, both as defined under the Revolving Credit Facility. As of September 27, 2017,26, 2018, we were in compliance with all covenants.
As of September 27, 201726, 2018 and December 28, 201627, 2017 we had deemed landlord financing liabilities of $13,162$19,867 and $2,007,$14,518, respectively, for certain leases where we are involved in the construction of leased assets and are considered the accounting owner of the construction project.
Total interest costs incurred were $527$633 and $1,260$1,897 for the thirteen and thirty-nine weeks ended September 27, 2017,26, 2018, respectively, and $89$527 and $267$1,260 for the thirteen and thirty-nine weeks ended September 28, 2016,27, 2017, respectively. Total amounts capitalized into property and equipment were $51$41 and $115$127 for the thirteen and thirty-nine weeks ended September 26, 2018, respectively, and $51 September 27, 2017, respectively. No amounts were capitalizedand $115 for the thirteen and thirty-nine weeks ended September 28, 2016.27, 2017, respectively.
NOTE 8:9: NON-CONTROLLING INTERESTS
 
We are the sole managing member of SSE Holdings and, as a result, consolidate the financial results of SSE Holdings. We report a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. The Third Amended and Restated Limited Liability Company Agreement, as further amended, (the "LLC Agreement") of SSE Holdings provides that holders of LLC Interests may, from time to time, require SSE Holdings to redeem all or a portion of their LLC Interests for newly-issued shares of Class A common stock on a one-for-one basis. In connection with any redemption or exchange, we will receive a corresponding number of LLC Interests, increasing our total ownership interest in SSE Holdings. Changes in our ownership interest in SSE Holdings while we retain our controlling interest in SSE Holdings will be accounted for as equity transactions. As such, future redemptions or direct exchanges of LLC Interests in SSE Holdings by the other members of SSE Holdings will result in a change in ownership and reduce the amount recorded as non-controlling interest and increase additional paid-in capital.
The following table summarizes the ownership interest in SSE Holdings as of September 27, 201726, 2018 and December 28, 2016.27, 2017.
September 27, 2017  December 28, 2016 September 26, 2018  December 27, 2017 
LLC Interests
 Ownership%
 LLC Interests
 Ownership %
LLC Interests
 Ownership%
 LLC Interests
 Ownership %
Number of LLC Interests held by Shake Shack Inc.26,161,111
 71.2% 25,151,384
 69.1%29,371,355
 79.3% 26,527,477
 72.1%
Number of LLC Interests held by non-controlling interest holders10,567,792
 28.8% 11,253,592
 30.9%7,688,921
 20.7% 10,250,007
 27.9%
Total LLC Interests outstanding36,728,903
 100.0% 36,404,976
 100.0%37,060,276
 100.0% 36,777,484
 100.0%

The weighted average ownership percentages for the applicable reporting periods are used to attribute net income and other comprehensive income (loss) to Shake Shack Inc. and the non-controlling interest holders. The non-controlling interest holders' weighted average ownership percentage for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 was 29.1%21.8% and 29.7%24.4%, respectively. The non-controlling interest holders' weighted average ownership percentage for the thirteen and thirty-nine weeks ended September 28, 201627, 2017 was 33.9%29.1% and 38.5%29.7%, respectively.


The following table summarizes the effects of changes in ownership of SSE Holdings on our equity during the thirteen and thirty-nine weeks ended September 26, 2018 and September 27, 2017 and September 28, 2016.2017.
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Net income attributable to Shake Shack Inc.Net income attributable to Shake Shack Inc.$4,997
 $3,766
 $12,143
 $8,526
Net income attributable to Shake Shack Inc.$5,025
 $4,997
 $16,137
 $12,143
Other comprehensive income (loss):Other comprehensive income (loss):       Other comprehensive income (loss):       
Unrealized holding gains (losses) on available-for-sale securities47
 (5) 45
 (10)Net change related to available-for-sale securities
 47
 10
 45
Transfers (to) from non-controlling interests:Transfers (to) from non-controlling interests:       Transfers (to) from non-controlling interests:       
Increase in additional paid-in capital as a result of the redemption of LLC Interests841
 4,708
 2,883
 15,086
Increase in additional paid-in capital as a result of the redemption of LLC Interests7,274
 841
 14,633
 2,883
Increase in additional paid-in capital as a result of activity under stock compensation plans78
 17
 3,580
 421
Increase in additional paid-in capital as a result of activity under stock compensation plans215
 78
 2,318
 3,580
Total effect of changes in ownership interest on equity attributable to Shake Shack Inc.Total effect of changes in ownership interest on equity attributable to Shake Shack Inc.$5,963
 $8,486
 $18,651
 $24,023
Total effect of changes in ownership interest on equity attributable to Shake Shack Inc.$12,514
 $5,963
 $33,098
 $18,651

During the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, an aggregate of 685,8002,561,086 and 4,706,663685,800 LLC Interests, respectively, were redeemed by non-controlling interest holders for newly-issued shares of Class A common stock, and we received 685,8002,561,086 and 4,706,663685,800 LLC Interests in connection with these redemptions for the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, respectively, increasing our total ownership interest in SSE Holdings.
During the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, we received an aggregate of 323,927282,792 and 101,837323,927 LLC Interests, respectively, in connection with the activity under our stock compensation plan.
NOTE 9:10: EQUITY-BASED COMPENSATION
 
A summary of equity-based compensation expense recognized during the thirteen and thirty-nine weeks ended September 26, 2018 and September 27, 2017 and September 28, 2016 is as follows:
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

 September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Stock optionsStock options$816
 $1,085
 $2,643
 $3,168
Stock options$719
 $816
 $2,319
 $2,643
Performance stock unitsPerformance stock units345
 492
 1,029
 649
Performance stock units750
 345
 1,668
 1,029
Restricted stock unitsRestricted stock units128
 
 151
 
Restricted stock units167
 128
 483
 151
Equity-based compensation expenseEquity-based compensation expense$1,289
 $1,577
 $3,823
 $3,817
Equity-based compensation expense$1,636
 $1,289
 $4,470
 $3,823
Total income tax benefit recognized related to equity-based compensationTotal income tax benefit recognized related to equity-based compensation$47
 $53
 $142
 $117
Total income tax benefit recognized related to equity-based compensation$46
 $47
 $126
 $142

Amounts are included in general and administrative expense and labor and related expenses on the Condensed Consolidated Statements of Income.


NOTE 10: 11:INCOME TAXES
 
We are the sole managing member of SSE Holdings and, as a result, consolidate the financial results of SSE Holdings. SSE Holdings is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, SSE Holdings is not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss generated by SSE Holdings is passed through to and included in the taxable income or loss of its members, including us, on a pro rata basis. We are subject to U.S. federal income taxes, in addition to state and local income taxes with respect to our allocable share of any taxable income or loss of SSE Holdings, as well as any stand-alone income or loss generated by Shake Shack Inc. We are also subject to withholding taxes in foreign jurisdictions.
Income Tax Expense
A reconciliation of income tax expense computed at the U.S. federal statutory income tax rate to the recognized income tax expense is as follows:
Thirteen Weeks Ended  Thirty-Nine Weeks Ended Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
September 27 2017
  September 28
2016
  
September 27 2017
  September 28
2016
 September 26
2018
  September 27
2017
  September 26
2018
  September 27
2017
 
Expected U.S. federal income taxes at statutory rate$3,627
35.0 % $3,139
34.0 % $9,609
35.0 % $7,734
34.0 %$1,930
21.0 % $3,627
35.0 % $5,917
21.0 % $9,609
35.0 %
State and local income taxes, net of federal benefit630
6.1 % 533
5.8 % 1,638
6.0 % 1,277
5.6 %643
7.0 % 630
6.1 % 1,885
6.7 % 1,638
6.0 %
Foreign withholding taxes292
2.8 % 148
1.6 % 705
2.6 % 505
2.2 %298
3.2 % 292
2.8 % 1,100
3.9 % 705
2.6 %
Tax credits(399)(3.8)% (243)(2.6)% (777)(2.8)% (369)(1.6)%(181)(2.0)% (399)(3.8)% (1,378)(4.9)% (777)(2.8)%
Non-controlling interest(1,132)(10.9)% (1,134)(12.3)% (3,114)(11.3)% (3,089)(13.6)%(430)(4.7)% (1,132)(10.9)% (1,615)(5.7)% (3,114)(11.3)%
Other(524)(5.1)% 
 % (524)(2.0)% 
 %(19)(0.1)% (524)(5.1)% (230)(0.8)% (524)(2.0)%
Income tax expense$2,494
24.1 % $2,443
26.5 % $7,537
27.5 % $6,058
26.6 %$2,241
24.4 % $2,494
24.1 % $5,679
20.2 % $7,537
27.5 %


Our effective income tax rates for the thirteen weeks ended September 27, 201726, 2018 and September 28, 201627, 2017 were 24.1%24.4% and 26.5%24.1%, respectively. The increase was primarily driven by an increase in our ownership interest in SSE Holdings, which increases our share of the taxable income of SSE Holdings, as well as decreases in tax credits, which were partially offset by the decrease in the U.S. federal corporate income tax rate from 35% to 21% due to the enactment of the Tax Cuts and Jobs Act of 2017 (the "TCJA"). Our weighted-average ownership interest in SSE Holdings was 78.2% and 70.9% for the thirteen weeks ended September 26, 2018 and September 27, 2017, respectively.
Our effective income tax rates for thirty-nine weeks ended September 26, 2018 and September 27, 2017 were 20.2% and 27.5%, respectively. The decrease was primarily driven by a benefit relatedthe reduction of the U.S. federal corporate income tax rate from 35% to an adjustment recognized in connection with21% due to the filingenactment of our prior year tax returns and higher tax credits, which werethe TCJA, partially offset by the increase in our ownership interest in SSE Holdings, which increases our share of the taxable income of SSE Holdings, and higher foreign withholding taxes. Our weighted-average ownership interest in SSE Holdings was 70.9%75.6% and 66.1% for the thirteen weeks ended September 27, 2017 and September 28, 2016, respectively.
Our effective income tax rates70.3% for the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016 were 27.5% and 26.6%, respectively. The increase in our effective income tax rate for the period is primarily due to an increase in our ownership interest in SSE Holdings. As our ownership interest in SSE Holdings increases, our share of the taxable income of SSE Holdings also increases. Our weighted-average ownership interest in SSE Holdings was 70.3% and 61.5% for the thirty-nine weeks ended September 27, 2017, and September 28, 2016, respectively. This increase in ownership interest was partially offset by a benefit related to an adjustment recognized in connection with the filing of our prior year tax returns and higher tax credits.
Deferred Tax Assets and Liabilities
During the thirty-nine weeks ended September 27, 201726, 2018, we acquired an aggregate of 1,009,7272,843,878 LLC Interests in connection with the redemption of LLC Interests and activity relating to our stock compensation plan. We recognized a deferred tax asset in the amount of $9,883of $37,498 associated with the basis difference in our investment in SSE Holdings upon acquisition of these LLC Interests. As of September 27, 201726, 2018, the total deferred tax asset related to the basis difference in our investment in SSE Holdings was $216,285.$179,767. However, a portion of the total basis difference will only reverse upon the eventual sale of our interest in SSE Holdings, which we expect would result in a capital loss. As of September 27, 201726, 2018, the total valuation allowance established against the deferred tax asset to which this portion relates was $15,679.$7,732.


During the thirty-nine weeks ended September 27, 201726, 2018, we also recognized $5,216$11,996 of deferred tax assets related to additional tax basis increases generated from expected future payments under the Tax Receivable Agreement and related deductions for imputed interest on such payments. See "—Tax Receivable Agreement" for more information.


We evaluate the realizability of our deferred tax assets on a quarterly basis and establish valuation allowances when it is more likely than not that all or a portion of a deferred tax asset may not be realized. As of September 27, 201726, 2018, we concluded, based on the weight of all available positive and negative evidence, that all of our deferred tax assets (except for those deferred tax assets described above relating to basis differences that are expected to result in a capital loss upon the eventual sale of our interest in SSE Holdings) are more likely than not to be realized. As such, no additional valuation allowance was recognized.
Uncertain Tax Positions
No uncertain tax positions existed as of September 27, 201726, 2018. Shake Shack Inc. was formed in September 2014 and did not engage in any operations prior to the IPO and related organizational transactions. Shake Shack Inc. first filed tax returns for tax year 2014, which is the first tax year subject to examination by taxing authorities for U.S. federal and state income tax purposes. Additionally, although SSE Holdings is treated as a partnership for U.S. federal and state income taxes purposes, it is still required to file an annual U.S. Return of Partnership Income, which is subject to examination by the Internal Revenue Service ("IRS"). The statute of limitations has expired for tax years through 20132014 for SSE Holdings.
Tax Receivable Agreement
Pursuant to our election under Section 754 of the Internal Revenue Code (the "Code"), we expect to obtain an increase in our share of the tax basis in the net assets of SSE Holdings when LLC Interests are redeemed or exchanged by the other members of SSE Holdings. We plan to make an election under Section 754 of the Code for each taxable year in which a redemption or exchange of LLC Interest occurs. We intend to treat any redemptions and exchanges of LLC Interests as direct purchases of LLC Interests for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that we would otherwise pay in the future to various tax authorities. They may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets.
On February 4, 2015, we entered into a tax receivable agreement with certain of the then-existing members of SSE Holdings (the "Tax Receivable Agreement") that provides for the payment by us of 85% of the amount of any tax benefits that we actually realize, or in some cases are deemed to realize, as a result of (i) increases in our share of the tax basis in the net assets of SSE Holdings resulting from any redemptions or exchanges of LLC Interests, (ii) tax basis increases attributable to payments made under the Tax Receivable Agreement, and (iii) deductions attributable to imputed interest pursuant to the Tax Receivable Agreement (the "TRA Payments"). We expect to benefit from the remaining 15% of any tax benefits that we may actually realize. The TRA Payments are not conditioned upon any continued ownership interest in SSE Holdings or us. The rights of each member of SSE Holdings, that is a party to the Tax Receivable Agreement, are assignable to transferees of their respective LLC Interests.
During the thirty-nine weeks ended September 27, 201726, 2018, we acquired an aggregate of 685,8002,561,086 LLC Interests in connection with the redemption of LLC Interests, which resulted in an increase in the tax basis of our investment in SSE Holdings subject to the provisions of the Tax Receivable Agreement. We recognized an additional liability in the amount of $12,918$42,641 for the TRA Payments due to the redeeming members, representing 85% of the aggregate tax benefits we expect to realize from the tax basis increases related to the redemption of LLC Interests, after concluding it was probable that such TRA Payments would be paid based on our estimates of future taxable income. DuringNo payments were made to the members of SSE Holdings pursuant to the Tax Receivable Agreement during the thirty-nine weeks ended September 26, 2018. During the thirty-nine weeks endedSeptember 27, 2017, payments of $1,471, inclusive of interest, were made to the members of SSE Holdings pursuant to the Tax Receivable Agreement. No amounts were paid to the members during the thirty-nine weeks endedSeptember 28, 2016. As of September 27, 201726, 2018, the total amount of TRA Payments due under the Tax Receivable Agreement, was $283,961,$202,024, of which $3,140$947 was included in other current liabilities on the Condensed Consolidated Balance Sheet. See Note 1314 for more information relating to our liabilities under the Tax Receivable Agreement.


NOTE 11:12: EARNINGS PER SHARE
 
Basic earnings per share of Class A common stock is computed by dividing net income availableattributable to Shake Shack Inc. by the weighted-average number of shares of Class A common stock outstanding during the period. Diluted earnings per share of Class A common stock is computed by dividing net income availableattributable to Shake Shack Inc. by the weighted-average number of shares of Class A common stock outstanding adjusted to give effect to potentially dilutive securities.


The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted earnings per share of Class A common stock for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016.27, 2017.
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
  
September 27 2017

 September 28
2016

 
September 27 2017

 September 28
2016

  September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Numerator:Numerator:       Numerator:       
Net income$7,870
 $6,789
 $19,916
 $16,689
Net income$6,946
 $7,870
 $22,496
 $19,916
Less: net income attributable to non-controlling interests2,873
 3,023
 7,773
 8,163
Less: net income attributable to non-controlling interests1,921
 2,873
 6,359
 7,773
Net income attributable to Shake Shack Inc.$4,997
 $3,766
 $12,143
 $8,526
Net income attributable to Shake Shack Inc.$5,025
 $4,997
 $16,137
 $12,143
Denominator:Denominator:       Denominator:       
Weighted-average shares of Class A common stock outstanding—basic26,024
 24,023
 25,733
 22,310
Weighted-average shares of Class A common stock outstanding—basic28,954
 26,024
 27,930
 25,733
Effect of dilutive securities:       Effect of dilutive securities:       
 Stock options411
 531
 486
 495
 Stock options857
 411
 809
 486
 Performance stock units26
 
 24
 
 Performance stock units51
 26
 63
 24
 Restricted stock units16
 
 5
 
 Restricted stock units21
 16
 18
 5
Weighted-average shares of Class A common stock outstanding—diluted26,477
 24,554
 26,248
 22,805
Weighted-average shares of Class A common stock outstanding—diluted29,883
 26,477
 28,820
 26,248
                  
Earnings per share of Class A common stock—basicEarnings per share of Class A common stock—basic$0.19
 $0.16
 $0.47
 $0.38
Earnings per share of Class A common stock—basic$0.17
 $0.19
 $0.58
 $0.47
Earnings per share of Class A common stock—dilutedEarnings per share of Class A common stock—diluted$0.19
 $0.15
 $0.46
 $0.37
Earnings per share of Class A common stock—diluted$0.17
 $0.19
 $0.56
 $0.46

Shares of our Class B common stock do not share in the earnings or losses of Shake Shack and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B common stock under the two-class method has not been presented.


The following table presents potentially dilutive securities excluded from the computations of diluted earnings per share of Class A common stock for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016.27, 2017.
   Thirteen Weeks Ended Thirty-Nine Weeks Ended
   
September 27 2017

  September 28
2016

  
September 27 2017

  September 28
2016

 
Stock options(1)
18,676
(2) 
  18,676
(2) 
 
Performance stock units(1)
86,396
(3) 62,800
(3) 86,396
(3) 62,800
(3)
Shares of Class B common stock10,567,792
(4) 11,754,078
(4) 10,567,792
(4) 11,754,078
(4)
   Thirteen Weeks EndedThirty-Nine Weeks Ended
   September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

 
Stock options (1)

 18,676
(2)
 18,676
(2)
Performance stock units (1)
59,341
(3)86,396
(3)59,341
(3)86,396
(3)
Shares of Class B common stock7,688,921
(4)10,567,792
(4)7,688,921
(4)10,567,792
(4)
(1) Represents the number of instruments outstanding at the end of the period. Application of the treasury stock method would reduce this amount if they had a dilutive effect and were included in the computation of diluted earnings per shares.
(2) Excluded from the computation of diluted earnings per share of Class A common stock because the exercise price of the stock options exceeded the average market price of our Class A common stock during the period ("out-of-the-money").
(3) Excluded from the computation of diluted earnings per share of Class A common stock because the performance conditions associated with these awards were not met assuming the end of the reporting period was the end of the performance period.
(4) Shares of our Class B common stock are considered potentially dilutive shares of Class A common stock. Amounts have been excluded from the computations of diluted earnings per share of Class A common stock because the effect would have been anti-dilutive under the if-converted and two-class methods.

(1)Represents the number of instruments outstanding at the end of the period. Application of the treasury stock method would reduce this amount if they had a dilutive effect and were included in the computation of diluted earnings per share.
(2)Excluded from the computation of diluted earnings per share of Class A common stock because the exercise price of the stock options exceeded the average market price of our Class A common stock during the period ("out-of-the-money").
(3)Excluded from the computation of diluted earnings per share of Class A common stock because the performance conditions associated with these awards were not met assuming the end of the reporting period was the end of the performance period.
(4)Shares of our Class B common stock are considered potentially dilutive shares of Class A common stock. Amounts have been excluded from the computations of diluted earnings per share of Class A common stock because the effect would have been anti-dilutive under the if-converted and two-class methods.

NOTE 12:13: SUPPLEMENTAL CASH FLOW INFORMATION
 
The following table sets forth supplemental cash flow information for the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016:27, 2017:
 Thirty-Nine Weeks Ended  Thirty-Nine Weeks Ended 
 September 27
2017

 September 28
2016

 September 26
2018

 September 27
2017

Cash paid for:Cash paid for:   Cash paid for:   
Income taxes, net of refunds$1,936
 $1,292
Income taxes, net of refunds$2,015
 $1,936
Interest, net of amounts capitalized684
 40
Interest, net of amounts capitalized1,601
 684
Non-cash investing activities:Non-cash investing activities:   Non-cash investing activities:   
Accrued purchases of property and equipment10,138
 5,792
Accrued purchases of property and equipment17,697
 10,138
Capitalized landlord assets for leases where we are deemed the accounting owner9,095
 
Capitalized landlord assets for leases where we are deemed the accounting owner4,478
 9,095
Accrued purchases of marketable securities307
 51
Accrued purchases of marketable securities
 307
Capitalized equity-based compensation86
 107
Capitalized equity-based compensation64
 86
Non-cash financing activities:Non-cash financing activities:   Non-cash financing activities:   
Class A common stock issued in connection with the redemption of LLC Interests
 5
Class A common stock issued in connection with the redemption of LLC Interests2
 
Cancellation of Class B common stock in connection with the redemption of LLC Interests
 (5)Cancellation of Class B common stock in connection with the redemption of LLC Interests(2) 
Establishment of liabilities under tax receivable agreement12,918
 90,776
Establishment of liabilities under tax receivable agreement42,641
 12,918
Accrued distributions payable to non-controlling interest holders


 607



NOTE 13:14: COMMITMENTS AND CONTINGENCIES
 
Lease Commitments
We are obligated under various operating leases for Shacks and our home office space, expiring in various years through 2035. Under certain of these leases, we are liable for contingent rent based on a percentage of sales in excess of specified thresholds and are typically responsible for our proportionate share of real estate taxes, common area maintenance charges and utilities.
As security under the terms of several of our leases, we are obligated under letters of credit totaling $160 as of September 27, 201726, 2018. The letters of credit expire in April 20182019 and February 2026. In addition, in December 2013, we entered into an irrevocable standby letter of credit in conjunction with our home office lease in the amount of $80. The letter of credit expires in September 2018 and renews automatically for one-year periods through September 2019. In September 2017, we entered into an irrevocable standby letter of credit in conjunction with our new home office lease in the amount of $603. The letter of credit expires in August 20182019 and renews automatically for one-year periods through January 2034.
Purchase Commitments
Purchase obligations include legally binding contracts, including commitments for the purchase, construction or remodeling of real estate and facilities, firm minimum commitments for inventory purchases, equipment purchases, marketing-related contracts, software acquisition/license commitments and service contracts. These obligations are generally short-term in nature and are recorded as liabilities when the related goods are received or services rendered. We also enter into long-term, exclusive contracts with certain vendors to supply us with food, beverages and paper goods, obligating us to purchase specified quantities.
Legal Contingencies
In November 2015, we participated inFebruary 2018, a voluntary mediation with counsel representing two formerclaim was filed against Shake Shack managers, who alleged that we improperly classified our restaurant managers as exempt from overtime protections. At the conclusionin California state court alleging certain violations of the California Labor Code.  At a mediation between the parties, mutually agreed to fully and finally resolve the matter by settling, rather than litigating. In connection with the settlement, the parties entered into a memorandum of understanding, pursuant to which we agreed to create asettle the matter with the plaintiff and all other California employees who elect to participate in the settlement fundfor $1,200.  As of September 26, 2018, an accrual in the amount of $750 and, in exchange$1,200 was recorded for their participation in the settlement fund, all participating employees (current and former) were required to release Shake Shack from all federal and/or state wage and hour claims that may have existed through the settlement date. In March 2016, the parties entered into a settlement agreement in the amount of $750. In May 2017, we paid to the claims administrator $774 in full satisfaction of the amounts owed by us under the settlement agreementthis matter and related expenses.


We are subject to various legal and regulatory proceedings, claims and liabilities, such as employment-related claims and slip and fall cases, which arise in the ordinary course of business and are generally covered by insurance. As of September 27, 201726, 2018, the amount of the ultimate liability with respect to these matters was not material.
Liabilities under Tax Receivable Agreement
As described in Note 10,11, we are a party to the Tax Receivable Agreement under which we are contractually committed to pay certain of the members of SSE Holdings 85% of the amount of any tax benefits that we actually realize, or in some cases are deemed to realize, as a result of certain transactions. We are not obligated to make any payments under the Tax Receivable Agreement until the tax benefits associated with the transactions that gave rise to the payments are realized. Amounts payable under the Tax Receivable Agreement are contingent upon, among other things, (i) generation of future taxable income over the term of the Tax Receivable Agreement and (ii) future changes in tax laws. If we do not generate sufficient taxable income in the aggregate over the term of the Tax Receivable Agreement to utilize the tax benefits, then we would not be required to make the related TRA Payments. During the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, we recognized liabilities totaling $12,918$42,641 and $90,776,$12,918, respectively, relating to our obligations under the Tax Receivable Agreement, after concluding that it was probable that we would have sufficient future taxable income over the term of the Tax Receivable Agreement to utilize the related tax benefits. As of September 27, 201726, 2018 and December 28, 2016,27, 2017, our total obligations under the Tax Receivable Agreement, including accrued interest, were $283,961$202,024 and $272,482,$159,373, respectively. There were no transactions subject to the Tax Receivable Agreement for which we did not recognize the related liability, as we concluded that we would have sufficient future taxable income to utilize all of the related tax benefits.


NOTE 14:15: RELATED PARTY TRANSACTIONS
 
Union Square Hospitality Group
The Chairman of our Board of Directors serves as the Chief Executive Officer of Union Square Hospitality Group, LLC. As a result, Union Square Hospitality Group, LLC and its subsidiaries, set forth below, are considered related parties.
USHG, LLC
Effective January 2015, we entered into an Amended and Restated Management Services Agreement with USHG, LLC ("USHG"), in which USHG provides reduced management services to SSE Holdings comprised of executive leadership from members of its senior management, advisory and development services and limited leadership development and human resources services. The initial term of the Amended and Restated Management Services Agreement is through December 31, 2019, with renewal periods.
No amounts were paid to USHG for general corporate expenses duringfor the thirteen weeks ended thirteenSeptember 26, 2018 and September 27, 2017. Amounts paid to USHG for general corporate expenses were $2 and $6 for the thirty-nine weeks ended September 27, 2017 and $1 was paid to USHG during the thirteen weeks ended September 28, 2016. Total amounts paid to USHG for general corporate expenses during the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016 were27, 2017, respectively. $6 and $7, respectively. These amounts are included in general and administrative expenses on the Condensed Consolidated Statements of Income.
Noamounts were payable to USHG as of September 27, 201726, 2018. Total amounts payable to USHG as of and December 28, 2016 were $1, which is included in other current liabilities on the Condensed Consolidated Balance Sheets. 27, 2017. NoNo amounts were due from USHG as of September 27, 201726, 2018 and December 28, 2016.
Daily Provisions
In May 2017 we began purchasing coffee cake from the restaurant Daily Provisions to offer as a breakfast item at our Madison Square Park Shack. Amounts paid to Daily Provisions during the thirteen and thirty-nine weeks ended September 27, 2017 were $4. No amounts were paid to Daily Provisions during the thirteen and thirty-nine weeks ended September 28, 2016. Total amounts payable to Daily Provisions as of September 27, 2017 were $1, which are included in accounts payable on the Condensed Consolidated Balance Sheets. No amounts were payable to Daily provisions as of December 28, 2016..
Hudson Yards Sports and Entertainment
In fiscal 2011, we entered into a Master License Agreement (as amended, "MLA") with Hudson Yards Sports and Entertainment LLC ("HYSE") to operate Shake Shack branded limited menu concession stands in sports and entertainment venues within the United States. The agreement expires in January 2027 and includes five consecutive five-year renewal options at HYSE's option. As consideration for these rights, HYSE pays us a license fee based on a percentage of net food sales, as defined in the MLA. HYSE also pays us a percentage of profits on sales of branded beverages, as defined in the MLA. AmountsAmount paid to us by the HYSE for the thirteen and thirty-nine weeks ended September 26, 2018 were $200 and $311, respectively. Amounts paid to us by HYSE for the thirteen and thirty-nine weeks ended September 27, 2017 were $193 and $328, respectively. For the thirteen and thirty-nine weeks endedSeptember 28, 2016 amounts paid to us by HYSE were $174 and $277, respectively. These amounts are included in licensing revenue on the Condensed Consolidated Statements of Income. Total amounts due from HYSE as of September 27, 201726, 2018 and December 28, 201627, 2017 were $75$82 and $1118, respectively, which are included in prepaid expenses and other current assets on the Condensed Consolidated Balance Sheets.


Madison Square Park Conservancy
The Chairman of our Board of Directors serves as a director of the Madison Square Park Conservancy ("MSP Conservancy"), with which we have a license agreement and pay license fees to operate our Madison Square Park Shack. Amounts paid to Madison Square ParkMSP Conservancy as rent amounted to $199$203 and $531 $673 for the thirteen and thirty-nine weeks ended September 27, 201726, 2018, respectively. Amounts paid to Madison Square ParkMSP Conservancy as rent amounted to $195$199 and $585$531 for the thirteen and thirty-nine weeks ended September 28, 201627, 2017, respectively. These amounts are included in occupancy and related expenses on the Condensed Consolidated Statements of Income. No amounts were due to MSP Conservancy as of September 27, 201726, 2018. Total amounts due to MSP Conservancy were $1 as of and December 28, 2016. These amounts are included in accrued expenses on the Condensed Consolidated Balance Sheets.27, 2017.
Additionally, we received tenant improvement allowances from MSP Conservancy related to a reconstruction project which ended in 2015. NoNo amounts were paid to us from MSP Conservancy during the thirteen weeks ended September 27, 2017. During the


and thirty-nine weeks ended September 27, 201726, 2018. No amounts were paid to us from MSP Conservancy totaled $200. No amounts wereduring the thirteen weeks ended September 27, 2017. Amounts paid to us during the thirteen and thirty-nine weeks endedSeptember 28, 2016.27, 2017 totaled $200. No amounts were due to us from MSP Conservancy as of September 27, 201726, 2018. Total amounts due from MSP Conservancy as of and December 28, 2016 were $200, which are included in accounts receivable on the Condensed Consolidated Balance Sheets.27, 2017.
Share Our Strength
The Chairman of our Board of Directors serves as a director of Share Our Strength, for which Shake Shack holds the "Great American Shake Sale" every year during the month of May to raise money and awareness for childhood hunger. During the Great American Shake Sale, we encourage guests to donate money to Share Our Strength's No Kid Hungry campaign in exchange for a coupon for a free cake-themed shake. All of the guest donations we collect go directly to Share Our Strength.
During the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 201627, 2017 the Great American Shake Sale raised $631$343 and $587, respectively, for Share Our Strength. $631, respectively. No amounts were raised for both the thirteen weeks ended September 27, 201726, 2018 and September 28, 2016.27, 2017. All proceeds were remitted to Share Our Strength in the respective years. We incurred costs of approximately $29 and $148$53 for the thirteen and thirty-nine weeks ended September 27, 201726, 2018, respectively,. No costs were incurred for the thirteen weeks ended September 26, 2018. We incurred costs of approximately $29 and $17 and $115$148 for the thirteen and thirty-nine weeks ended September 28, 2016, respectively, which represent27, 2017, respectively. These costs represents the cost of the free shakes redeemed. These costsredeemed and are included in general and administrative expenses on the Condensed Consolidated Statements of Income.
Mobo Systems, Inc.
The Chairman of our Board of Directors serves as a director of Mobo Systems, Inc. (also known as "Olo"), a platform we use in connection with our mobile ordering application. Amounts paid to Olo during the thirteen and thirty-nine weeks ended September 27, 201726, 2018 were $28 and $80, respectively. Amounts paid to Olo during the thirteen and thirty-nine weeks ended September 27, 2017 were $19 and $57, respectively, whichrespectively. These amounts are included in other operating expenses on the Condensed Consolidated Statements of Income. No amounts were paid to Olo for the thirteen and thirty-nine weeks ended September 28, 2016. No amounts were payable to Olo as of September 27, 201726, 2018 and December 28, 2016.27, 2017.
Square, Inc.
In July 2017, our Chief Executive Officer joined the Board of Directors of Square, Inc. ("Square"). We currently use certain point-of-sale applications, payment processing services, hardware and other enterprise platform services in connection with the processing of a limited amount of sales at certain of our Shacks, sales for certain off-site events and in connection with our kiosk technology. Additionally, in March 2017, we partnered with Caviar, Square’s food ordering service for delivery services, in a number of cities for limited-time delivery promotion. promotions.
Tax Receivable Agreement
As described in Note 10,11, we entered into a tax receivable agreement with certain members of SSE Holdings that provides for the payment by us of 85% of the amount of tax benefits, if any, that Shake Shack actually realizes or in some cases is deemed to realize as a result of certain transactions. No payments were made to the members of SSE Holdings pursuant to the Tax Receivable Agreement during the thirteen and thirty-nine weeks ended September 27, 201726, 2018. No payments were paid to the members during the thirteen weeks ended September 27, 2017. During the thirty-nine weeks ended September 27, 2017, payments oftotaling $1,471, inclusive of interest, were made to the members. No amounts were paidmembers of SSE Holdings pursuant to the members during the thirteen and thirty-nine weeks endedSeptember 28, 2016.Tax Receivable Agreement. As of September 27, 201726, 2018 and December 28, 201627, 2017, total amounts due under the Tax Receivable Agreement were $283,961$202,024 and $272,482,$159,373, respectively.


Distributions to Members of SSE Holdings
Under the terms of the SSE Holdings LLC Agreement, SSE Holdings is obligated to make tax distributions to its members. During the thirteen and thirty-nine weeks ended September 26, 2018 distributions paid to non-controlling interest holders were $22 and $692, respectively. During the thirteen and thirty-nine weeks ended September 27, 2017 distributions paid to non-controlling interest holders were $13 and $2,392, respectively. , respectively. No distributions were paid to non-controlling interest holders for the thirteen weeks ended September 28, 2016. For the thirty-nine weeks ended September 28, 2016 tax distributions of $1,602 were paid to non-controlling interest holders. No tax distributions were payable to non-controlling interest holders as of September 26, 2018 and December 27, 2017. As of December 28, 2016 tax distributions of $607 were payable to non-controlling interest holders.



Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.
This section and other parts of this Quarterly Report on Form 10-Q ("Form 10-Q") contain forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995 ("PSLRA"), which are subject to known and unknown risks, uncertainties and other important factors that may cause actual results to be materially different. All statements other than statements of historical fact are forward-looking statements. Forward-looking statements provide current expectations of future events based on certain assumptions and include any statement that does not directly relate to any historical or current fact, such as our expected financial outlook for fiscal 2017,2018, expected preliminary financial outlook for fiscal 2019, expected Shack openings, expected same-Shack sales growth and trends in our business. Forward-looking statements can also be identified by words such as "aim," "anticipate," "believe," "estimate," "expect," "forecast," "future," "intend," "outlook," "plan," "potential," "predict," "project," "seek," "may," "can," "will," "would," "could," "should," the negatives thereof and other similar expressions. All forward-looking statements are expressly qualified in their entirety by these cautionary statements, except that the safe harbor provisions of the PSLRA do not apply to any forward-looking statements relating to the operations of any of our partnerships or limited liability companies. Forward-looking statements are not guarantees of future performance and actual results may differ materiallysignificantly from the results discussed in the forward-looking statements. All forward-looking statements are expressly qualified in their entirety by these cautionary statements. Factors that might cause such differences include, but are not limited to, those discussed in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended,27, 2017 ("20162017 Form 10-K"), subsequent Quarterly Reports on Form 10-Q and Part II, Item 1A of this Form 10-Q. The following discussion should be read in conjunction with our 20162017 Form 10-K and the condensed consolidated financial statements and notes thereto included in Part I, Item 1 of this Form 10-Q. All information presented herein is based on our fiscal calendar. Unless otherwise stated, references to particular years, quarters, months or periods refer to our fiscal years and the associated quarters, months and periods of those fiscal years. We undertake no obligation to revise or update any forward-looking statements for any reason, except as required by law.
OVERVIEW
 
Shake Shack is a modern day "roadside" burger stand serving a classic American menu of premium burgers, chicken sandwiches, hot dogs, crinkle cut fries, shakes, frozen custard, beer and wine. As of September 27, 2017,26, 2018, there were 143188 Shacks in operation, system-wide, of which 79107 were domestic company-operated Shacks, 1011 were domestic licensed Shacks and 5470 were international licensed Shacks.
Development Highlights
During the quarter, we opened fourseven domestic company-operated Shacks, includingwhich included our first Shacks in Birmingham and Nashville. Additionally, we continued to expand in New York with Shack openings in San Antonio, Texas,the West Village, which included our first-ever Innovation Kitchen, and Williamsburg, as well as additionalour second Shack in Denver. We also opened two licensed Shacks, which included an international licensed Shack in Nevada, New Jerseythe City of London and New York City. Additionally, we opened a domestic licensed Shack in Atlanta at M&T Bank Stadium in Baltimore and four international licensed Shacks, which is comprised of the fourth Shack in Japan in the Shinjuku area and a fifth Shack in South Korea, as well as additional Shacks in Turkey and the Middle East. Also during the quarter, we announced plans to enter Hong Kong, Macau and Shanghai, through a new partnership with Maxim's Caterers Limited.Hartsfield-Jackson Airport.
Financial Highlights for the Third Quarter 2017:2018:
Total revenue increased 26.9%26.5% to $94.6$119.6 million.
Shack sales increased 26.8%27.2% to $91.1$115.9 million.
Same-Shack sales decreased 1.6%0.7%.
Operating income increased 15.7% to $10.6was $9.3 million, or 11.2%7.8% of total revenue.revenue, which included the impact of costs associated with Project Concrete and other one-time items totaling $1.5 million, resulting in a decrease of 11.9%.
Shack-level operating profit*, a non-GAAP measure, increased 19.9%20.7% to $24.8$29.9 million, or 27.2%25.8% of Shack sales.
Net income increased 15.9% to $7.9was $6.9 million and net income attributable to Shake Shack Inc. was $5.0 million, or $0.19$0.17 per diluted share, which included an after-tax impact of $1.2 million related to Project Concrete and other one-time items and resulted in a $0.04 impact to earnings per diluted share.
Adjusted EBITDA*, a non-GAAP measure, increased 19.9%17.5% to $18.2$21.3 million.
Adjusted pro forma net income*, a non-GAAP measure, increased 13.1%27.0% to $6.2$7.9 million, or $0.17$0.21 per fully exchanged and diluted share.
Nine system-wide Shack openings, including fourcomprising seven domestic company-operated Shacks and fivetwo licensed Shacks.



* Shack-level operating profit, adjusted EBITDA and adjusted pro forma net income are non-GAAP measures. See "—Non-GAAP Financial Measures" for reconciliations of Shack-level operating profit to operating income, adjusted EBITDA to net income, and adjusted pro forma net income to net income attributable to Shake Shack Inc., the most directly comparable financial measures presented in accordance with GAAP.
We continued to execute on our growth strategies in 20172018 and the third quarter of 2017 was positively impacted by the incremental sales from the 2128 new domestic company-operated Shacks opened between September 28, 2016 and September 27, 2017 and the approximate 1.5% menu price increase implemented in mid-December 2016,September 26, 2018, partially offset by (1) a decline in same-Shack sales of 1.6%; (2) increased labor and related expenses resulting from ongoing increases in hourlyminimum wages, that were implemented at the endcommissions paid as part of fiscal 2016certain third-party delivery pilots and investments in our management team to support future growth;higher repairs and (3) the introduction of more Shacks of various volumes into the system.maintenance and certain fixed operating expenses.
Net income attributable to Shake Shack Inc. was $5.0 million, or $0.19$0.17 per diluted share, for the third quarter of 2017,2018, compared to $3.8$5.0 million, or $0.15$0.19 per diluted share, for the same period last year. On an adjusted pro forma basis, which excludes certain non-recurring and other items and also assumes that all outstanding LLC Interests were exchanged for shares of Class A common stock as of the beginning of the period, we would have recognized net income of $7.9 million, or $0.21 per fully exchanged and diluted share, for the third quarter of 2018 compared to $6.2 million, or $0.17per fully exchanged and diluted share for the third quarter of 2017, compared to $5.5 million, or $0.15 per fully exchanged and diluted share for the the third quarter of 2016, an increase of 13.1%27.0%.
FISCAL 20172018 OUTLOOK
 
For the fiscal year ending December 27, 2017,26, 2018, we have revised our financial outlook to the following:
 Current Outlook Previous Outlook
Total revenue$354450 to $355$452 million $351446 to $355$450 million
Licensing revenueapproximately $13 million$12 to $13 million
Same-Shack sales growth (%)-1.5%0% to -2%1% -2%0% to -3%1%
Domestic company-operated Shack openings2433 to 2634 2332 to 2435
Licensed Shack openings, net18, net14 to 16 15, net16 to 18
Average annual sales volume for domestic company-operated Shacks$4.2 to $4.3 million$4.1 to $4.2 million
Shack-level operating profit margin (%)26.5%24.5% to 27.0%25.5% 26.5%24.5% to 27.5%25.5%
General and administrative expenses (excluding one-time charges)$3848 to $40$50 million $3849 to $40$51 million
Depreciation expense$2230 to $31 million $2231 to $32 million
Pre-opening costsapproximately $13 millionapproximately $13 million
Interest expense$1.6 to $1.8approximately $2.5 million $1.6 to $2.0approximately $2.5 million
Adjusted pro forma effective tax rate (%)40%27% to 41%28% 40%26% to 41%27%

PRELIMINARY 20182019 OUTLOOK
 
For the fiscal year ending December 26, 2018,25, 2019, we are providing the following preliminary financial outlook:
  CurrentPreliminary Outlook
Domestic company-operated Shack openings 3236 to 3540
Licensed Shack openings, net 16 to 18 net





RESULTS OF OPERATIONS
 
The following table summarizes our results of operations for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016:27, 2017:
 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
(dollar amounts in thousands)(dollar amounts in thousands)September 27
2017
September 28
2016
September 27
2017
September 28
2016
 (dollar amounts in thousands)September 26
2018
September 27
2017
September 26
2018
September 27
2017
 
Shack salesShack sales$91,100
96.3 % $71,871
96.4 % $253,258
96.4 % $188,430
96.5 %Shack sales$115,882
96.9 % $91,100
96.3 % $324,869
97.0 % $253,258
96.4 %
Licensing revenueLicensing revenue3,509
3.7 % 2,696
3.6 % 9,416
3.6 % 6,774
3.5 %Licensing revenue3,765
3.1 % 3,509
3.7 % 10,176
3.0 % 9,416
3.6 %
TOTAL REVENUETOTAL REVENUE94,609
100.0 % 74,567
100.0 % 262,674
100.0 % 195,204
100.0 %TOTAL REVENUE119,647
100.0 % 94,609
100.0 % 335,045
100.0 % 262,674
100.0 %
Shack-level operating expenses(1):
Shack-level operating expenses(1):
           
Shack-level operating expenses(1):
           
Food and paper costs25,760
28.3 % 20,393
28.4 % 71,646
28.3 % 53,529
28.4 %Food and paper costs32,703
28.2 % 25,760
28.3 % 91,336
28.1 % 71,646
28.3 %
Labor and related expenses23,806
26.1 % 18,216
25.3 % 66,692
26.3 % 46,640
24.8 %Labor and related expenses31,232
27.0 % 23,806
26.1 % 87,651
27.0 % 66,692
26.3 %
Other operating expenses9,229
10.1 % 6,577
9.2 % 25,380
10.0 % 17,475
9.3 %Other operating expenses13,496
11.6 % 9,229
10.1 % 36,536
11.2 % 25,380
10.0 %
Occupancy and related expenses7,522
8.3 % 6,009
8.4 % 20,741
8.2 % 15,541
8.2 %Occupancy and related expenses8,545
7.4 % 7,522
8.3 % 23,621
7.3 % 20,741
8.2 %
General and administrative expensesGeneral and administrative expenses9,204
9.7 % 7,885
10.6 % 27,352
10.4 % 22,265
11.4 %General and administrative expenses13,151
11.0 % 9,204
9.7 % 37,547
11.2 % 27,352
10.4 %
Depreciation expenseDepreciation expense5,604
5.9 % 3,719
5.0 % 15,610
5.9 % 10,229
5.2 %Depreciation expense7,439
6.2 % 5,604
5.9 % 20,905
6.2 % 15,610
5.9 %
Pre-opening costsPre-opening costs2,670
2.8 % 2,598
3.5 % 6,961
2.7 % 6,708
3.4 %Pre-opening costs3,581
3.0 % 2,670
2.8 % 8,031
2.4 % 6,961
2.7 %
Loss on disposal of property and equipmentLoss on disposal of property and equipment204
0.2 % 
 % 317
0.1 % 
 %Loss on disposal of property and equipment157
0.1 % 204
0.2 % 543
0.2 % 317
0.1 %
TOTAL EXPENSESTOTAL EXPENSES83,999
88.8 % 65,397
87.7 % 234,699
89.3 % 172,387
88.3 %TOTAL EXPENSES110,304
92.2 % 83,999
88.8 % 306,170
91.4 % 234,699
89.3 %
OPERATING INCOMEOPERATING INCOME10,610
11.2 % 9,170
12.3 % 27,975
10.7 % 22,817
11.7 %OPERATING INCOME9,343
7.8 % 10,610
11.2 % 28,875
8.6 % 27,975
10.7 %
Other income, netOther income, net229
0.2 % 151
0.2 % 622
0.2 % 197
0.1 %Other income, net436
0.4 % 229
0.2 % 1,070
0.3 % 622
0.2 %
Interest expenseInterest expense(475)(0.5)% (89)(0.1)% (1,144)(0.4)% (267)(0.1)%Interest expense(592)(0.5)% (475)(0.5)% (1,770)(0.5)% (1,144)(0.4)%
INCOME BEFORE INCOME TAXESINCOME BEFORE INCOME TAXES10,364
11.0 % 9,232
12.4 % 27,453
10.5 % 22,747
11.7 %INCOME BEFORE INCOME TAXES9,187
7.7 % 10,364
11.0 % 28,175
8.4 % 27,453
10.5 %
Income tax expenseIncome tax expense2,494
2.6 % 2,443
3.3 % 7,537
2.9 % 6,058
3.1 %Income tax expense2,241
1.9 % 2,494
2.6 % 5,679
1.7 % 7,537
2.9 %
NET INCOMENET INCOME7,870
8.3 % 6,789
9.1 % 19,916
7.6 % 16,689
8.5 %NET INCOME6,946
5.8 % 7,870
8.3 % 22,496
6.7 % 19,916
7.6 %
Less: net income attributable to non-controlling interestsLess: net income attributable to non-controlling interests2,873
3.0 % 3,023
4.1 % 7,773
3.0 % 8,163
4.2 %Less: net income attributable to non-controlling interests1,921
1.6 % 2,873
3.0 % 6,359
1.9 % 7,773
3.0 %
NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$4,997
5.3 % $3,766
5.1 % $12,143
4.6 % $8,526
4.4 %NET INCOME ATTRIBUTABLE TO SHAKE SHACK INC.$5,025
4.2 % $4,997
5.3 % $16,137
4.8 % $12,143
4.6 %
(1)As a percentage of Shack sales.
Shack Sales
Shack sales represent the aggregate sales of food, beverages and Shake Shack branded merchandise at our domestic company-operated Shacks. Shack sales in any period are directly influenced by the number of operating weeks in such period, the number of open Shacks and same-Shack sales. Same-Shack sales means, for any reporting period, sales for the comparable Shack base, which we define as the number of domestic company-operated Shacks open for 24 months or longer.Effective December 29th, 2016, we changed our methodology for calculating same-Shack sales whereby Shacks enter the comparable base at the beginning of their 25th full fiscal month, whereas previously they entered at the beginning of their 105th full fiscal week.
Shack sales were $115.9 million for the thirteen weeks ended September 26, 2018 compared to $91.1 million for the thirteen weeks ended September 27, 2017, compared to $71.9 million for the thirteen weeks ended September 28, 2016, an increase of $19.2$24.8 million or 26.8%27.2%. The growth in Shack sales was primarily driven by the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017, partially offset by lost revenue due to hurricane-related Shack closures, which we estimate to be approximately $0.3 million.26, 2018. Same-Shack sales decreased $0.9$0.5 million, or 1.6% during the thirteen weeks ended September 27, 2017, which excludes comparable period sales during hurricane-related closures.0.7%. The decrease in same-Shack sales, is due toconsisted of a 4.0% decrease in guest traffic of 3.8%. partially offset by a combinedan increase of 2.2% in price and sales mix.mix of 3.3%. For purposes of calculating same-Shack sales growth, Shack sales for 3954 Shacks were included in the comparable Shack base.



Shack sales were $324.9 million for the thirty-nine weeks ended September 26, 2018 compared to $253.3 million for the thirty-nine weeks ended September 27, 2017, compared to $188.4 million for the thirty-nine weeks ended September 28, 2016, an increase of $64.9$71.6 million or 34.4%28.3%. The increase is primarily due to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018. Same-Shack sales decreased $2.7increased $1 million, or 1.9%0.6%. The decreaseincrease in same-Shack sales, is primarily due to decreased guest trafficconsisted of 3.8%, partially offset by a combinedan increase of 1.9% in price and sales mix.mix of 4.2% offset by a 3.6%


decrease in guest traffic. For purposes of calculating same-Shack sales growth, Shack sales for 3954 Shacks were included in the comparable Shack base.
Licensing Revenue
Licensing revenue is comprised of license fees, opening fees for certain licensed Shacks and territory fees. License fees are calculated as a percentage of sales and territory fees are payments for the exclusive right to develop Shacks in a specific geographic area.
Licensing revenue was $3.8 million for the thirteen weeks ended September 26, 2018 compared to $3.5 million for the thirteen weeks ended September 27, 2017compared to $2.7, an increase of $0.3 million or 7.3%. Licensing revenue was $10.2 million for the thirteenthirty-nine weeks ended September 28, 201626, 2018 compared to $9.4 million for the thirty-nine weeks ended September 27, 2017, an increase of $0.8 million or 30.2%. Licensing revenue was $9.4 million for the thirty-nine weeks ended September 27, 2017 compared to $6.8 million for the thirty-nine weeks ended September 28, 2016, an increase of $2.6 million or 39.0%8.1%. The increaseincreases for the thirteen and thirty-nine week period wasperiods were primarily driven by 17 net new licensed Shacks opened between September 28, 201627, 2017 and September 27, 2017. The increase for the thirty-nine week period was primarily driven by 17 net new licensed Shacks opened between September 28, 2016 and September 27, 2017 as well as $0.5 million of previously deferred royalty revenue recognized in connection with the initial publication of the Shake Shack book, partially offset by lower revenue from Shacks in the Middle East as a result of macroeconomic and geopolitical volatile conditions.26, 2018.
Food and Paper Costs
Food and paper costs include the direct costs associated with food, beverage and packaging of our menu items. The components of food and paper costs are variable by nature, changing with sales volume, and are impacted by menu mix and fluctuations in commodity costs.
Food and paper costs were $32.7 million for the thirteen weeks ended September 26, 2018 compared to $25.8 million for the thirteen weeks ended September 27, 2017, compared to $20.4 million for the thirteen weeks ended September 28, 2016, an increase of $5.4$6.9 million or 26.3%27.0%. Food and paper costs were $71.6$91.3 million for the thirty-nine weeks ended September 27, 201726, 2018 compared to $53.5$71.6 million for the thirty-nine weeks ended September 28, 2016,27, 2017, an increase of $18.1$19.7 million or 33.8%27.5%. The increases for the thirteen and thirty-nine week periods were primarily due to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018.
As a percentage of Shack sales, food and paper costs decreased slightly to 28.2% from 28.3% for the thirteen weeks ended September 26, 2018 and September 27, 2017, respectively. As a percentage of Shack sales, food and paper costs decreased to 28.1% from 28.3% for the thirty-nine weeks ended September 26, 2018 and September 27, 2017, from 28.4%respectively. The decrease for the thirteen weeks ended and thirty-nine weeks ended September 28, 2016. This decreaseweek period was primarily the result of efficiencies in our remaining basket of food, the menu price increasesincrease we implemented in December 2016, partially2017 and sponsorship receipts for our biennial leadership retreat, offset by increased promotional activityrising beef costs and food wastecosts associated with hurricane-related Shack closures.the free burger promotion related to the launch of our mobile app.
Labor and Related Expenses
Labor and related expenses include domestic company-operated Shack-level hourly and management wages, bonuses, payroll taxes, equity-based compensation, workers' compensation expense and medical benefits. As we expect with other variable expense items, we expect labor costs to grow as our Shack sales grow. Factors that influence labor costs include minimum wage and payroll tax legislation, health care costs and the performance of our domestic company-operated Shacks.
Labor and related expenses were $31.2 million for the thirteen weeks ended September 26, 2018 compared to $23.8 million for the thirteen weeks ended September 27, 2017, compared to $18.2 million for the thirteen weeks ended September 28, 2016, an increase of $5.6$7.4 million or 30.7%31.2%. Labor and related expenses were $87.7 million for the thirty-nine weeks ended September 26, 2018 compared to $66.7 million for the thirty-nine weeks ended September 27, 2017, compared to $46.6 million for the thirty-nine weeks ended September 28, 2016, an increase of $20.1$21.0 million or 43.0%31.4%. These increases for the thirteen and thirty-nine week periods were primarily due to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018.
As a percentage of Shack sales, labor and related expenses increased to 27.0% for the thirteen and thirty-nine weeks ended September 26, 2018, compared to 26.1% and 26.3% for the thirteen and thirty-nine weeks ended September 27, 2017, respectively, compared to 25.3% and 24.8% for the thirteen and thirty-nine weeks ended September 28, 2016, respectively. The increases for the thirteen and thirty-nine week periods were primarily due to ongoing increases into hourly minimum wages, that were implemented at the endentry of fiscal 2016, investments in our management team to support future growth andlower volume Shacks into the openingsystem, as well as the timing of Shacks at various volumes.new Shack openings which typically carry higher labor costs initially.


Other Operating Expenses
Other operating expenses consist of Shack-level marketing expenses, utilities, repairrepairs and maintenance, costs,utilities and other operating expenses incidental to operating our domestic company-operated Shacks, such as non-perishable supplies, credit card fees and property insurance.
Other operating expenses were $13.5 million for the thirteen weeks ended September 26, 2018 compared to $9.2 million for the thirteen weeks ended September 27, 2017, compared to $6.6 million for the thirteen weeks ended September 28, 2016, an increase of $2.6$4.3 million or 40.3%46.2%. Other operating expenses were $36.5 million for the thirty-nine weeks ended September 26, 2018 compared to $25.4 million for the thirty-nine weeks ended September 27, 2017, compared to $17.5 million for the thirty-nine weeks ended September 28, 2016, an increase of $7.9$11.1 million or 45.2%44.0%. The increases for the thirteen and thirty-nine week periods were primarily due to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018.
As a percentage of Shack sales, other operating expenses increased to 11.6% and 11.2% for the thirteen and thirty-nine weeks ended September 26, 2018, respectively, compared to 10.1% and 10.0% for the thirteen and thirty-nine weeks ended September 27, 2017, respectively, compared to 9.2% and 9.3% for the thirteen and thirty-nine weeks ended September 28, 2016.respectively. The increase was primarilyincreases were due to delivery commissions paid as part of the integrated pilots during the year and the impact of higher repairs and maintenance and certain higher fixed operating expenses deleverage from same-Shack sales and the introduction ofspread across Shacks at various volumes into the system.a broader range of average unit volumes.
Occupancy and Related Expenses
Occupancy and related expenses consist of Shack-level occupancy expenses (including rent, common area expenses and certain local taxes), excluding pre-opening costs,and exclude occupancy expenses associated with unopened Shacks which are recorded separately.separately in pre-opening costs.
Occupancy and related expenses were $8.5 million for the thirteen weeks ended September 26, 2018 compared to $7.5 million for the thirteen weeks ended September 27, 2017, compared to $6.0 million for the thirteen weeks ended September 28, 2016, an increase of $1.5$1.0 million or 25.2%13.6%. This increase was due to the opening of 28 new domestic company-operated Shacks between September 27, 2017 and September 26, 2018. Occupancy and related expenses were $23.6 million for the thirty-nine weeks ended September 26, 2018 compared to $20.7 million for the thirty-nine weeks ended September 27, 2017, compared to $15.5 million for the thirty-nine weeks ended September 28, 2016, an increase of $5.2$2.9 million or 33.5%13.9%. The increases for the thirteen and thirty-nine week periods wereThis increase was primarily due to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018, offset by the impact from a one-time benefit to deferred rent related to certain historical leases with co-tenancy provisions.
As a percentage of Shack sales, occupancy and related expenses decreased to 8.3%7.4% and 7.3% for the thirteen and thirty-nine weeks ended September 26, 2018, respectively, compared to 8.3% and 8.2% for the thirteen and thirty-nine weeks ended September 27, 2017, from 8.4%respectively. The decrease for the thirteen weeks ended September 28, 2016,thirteen-week period was primarily due to the increased number of leases where we are deemed to be the accounting owner and for which less rent expense is recognized. This wasrecognized, partially offset by the introduction of Shacks at various volumes into the system. ForThe decrease for the thirty-nine weeks ended September 27, 2017 and September 28, 2016, occupancy andweek period was primarily driven by the aforementioned costs, partially offset by the impact from a one-time benefit to deferred rent related expenses as a percentage of Shack sales remained constant at 8.2%.to certain historical leases with co-tenancy provisions.
General and Administrative Expenses
General and administrative expenses consist of costs associated with corporate and administrative functions that support Shack development and operations, as well as equity-based compensation expense.
General and administrative expenses were $13.2 million for the thirteen weeks ended September 26, 2018 compared to $9.2 million for the thirteen weeks ended September 27, 2017, compared to $7.9 million for the thirteen weeks ended September 28, 2016, an increase of $1.3$4.0 million or 16.7%42.9%. General and administrative expenses were $37.5 million for the thirty-nine weeks ended September 26, 2018 compared to $27.4 million for the thirty-nine weeks ended September 27, 2017, compared to $22.3 million for the thirty-nine weeks ended September 28, 2016, an increase of $5.1$10.1 million or 22.8%37.3%. The increase for the thirteen week period was primarily driven by higher payroll expenses from increased headcount at our home officeHome Office to support our ongoing growth, plansincluding our enterprise-wide system upgrade initiative called Project Concrete, and developer costs$1.2 million of expense recognized during the quarter related to our digital platforms.a legal settlement. The increase for the thirty-nine week period was primarily driven by the aforementioned costs as well as costs incurred in connection with our executive transition and the recognition of previously deferred costs related to the initial publicationrelocation of our new Home Office, including duplicative non-cash deferred rent, a net loss on the Shake Shack book.sublease of our old Home Office and the disposal of certain fixed assets.
As a percentage of total revenue, general and administrative expenses decreasedincreased to 11.0% and 11.2% for the thirteen and thirty-nine weeks ended September 26, 2018, respectively, from 9.7% and 10.4% for the thirteen and thirty-nine weeks ended September 27, 2017, respectively, from 10.6% and 11.4% for the thirteen and thirty-nine weeks ended September 28, 2016, respectively. These decreasesincreases were primarily due to the increased level of Shack sales.aforementioned items.


Depreciation Expense
Depreciation expense consists of the depreciation of fixed assets, including leasehold improvements and equipment.
Depreciation expense was $7.4 million for the thirteen weeks ended September 26, 2018 compared to $5.6 million for the thirteen weeks ended September 27, 2017, compared to $3.7an increase of $1.8 million or 32.7%. Depreciation expense was $20.9 million for the thirteenthirty-nine weeks ended September 28, 2016, an increase of $1.9 million or 50.7%. Depreciation expense was26, 2018 compared to $15.6 million for the thirty-nine weeks ended September 27, 2017, compared to $10.2 million for the thirty-nine weeks ended September 28, 2016, an increase of $5.4$5.3 million or 52.6%33.9%. The increases for the thirteen and thirty-nine week periods were primarily due primarily to incremental depreciation of


property and equipment capital expenditures related to the opening of 2128 new domestic company-operated Shacks between September 28, 201627, 2017 and September 27, 2017.26, 2018.
As a percentage of total revenue, depreciation expense increased to 6.2% for the thirteen and thirty-nine weeks ended September 26, 2018 compared to 5.9% for both the thirteen and thirty-nine weeks ended September 27, 2017 compared to 5.0% and 5.2% for the thirteen and thirty-nine weeks ended September 28, 2016, respectively, primarily due to the deleverage from same-Shack sales and the entry of Shacks at various volumes into the system.
Pre-Opening Costs
Pre-opening costs consist primarily of legal fees, rent, managers' salaries, training costs, employee payroll and related expenses, costs to relocate and compensate Shack management teams prior to an opening and wages, as well as travel and lodging costs for our opening training team.team and other supporting team members. All such costs incurred prior to the opening of a domestic company-operated Shack are expensed in the period in which the expense was incurred. Pre-opening costs can fluctuate significantly from period to period, based on the number and timing of domestic company-operated Shack openings and the specific pre-opening costs incurred for each domestic company-operated Shack. Additionally, domestic company-operated Shack openings in new geographic market areas willmay initially experience higher pre-opening costs than our established geographic market areas, such as the New York City metropolitan area, where we have greater economies of scale and incur lower travel and lodging costs for our training team.
Pre-opening costs were $3.6 million for the thirteen weeks ended September 26, 2018 compared to $2.7 million for the thirteen weeks ended September 27, 2017, compared to $2.6an increase of $0.9 million or 34.1%. Pre-opening costs were $8.0 million for the thirteenthirty-nine weeks ended September 28, 2016, an increase of $0.1 million or 2.8%. Pre-opening costs were26, 2018 compared to $7.0 million for the thirty-nine weeks ended September 27, 2017, compared to $6.7 million for the thirty-nine weeks ended September 28, 2016, an increase of $0.3$1.0 million or 3.8%15.4%. The variances for the thirteen and thirty-nine week periodsThese increases were due to the timing and total number of new domestic company-operated Shacks expected to open.
Loss on Disposal of Property and Equipment
Loss on disposal of property and equipment represents the net book value of assets that have been retired and consists primarily of furniture and fixtures that were replaced in the normal course of business.
The loss on disposal of property and equipment for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 was $0.2 million and $0.5 million, respectively, compared to $0.2 million and $0.3 million respectively. The loss on disposal of property and equipment for the thirteen and thirty-nine weeks ended September 28, 2016 was not material.27, 2017, respectively.
Other Income, Net
Other income, net consists of interest income, dividend income, net unrealized gains and losses and net realized gains and losses from the sale of marketable securities.
Other income, net for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 was $0.4 million and $1.1 million, respectively, compared to $0.2 million and $0.6 million respectively. Other income, net for both the thirteen and thirty-nine weeks ended September 28, 2016 was $0.2 million. The increase for the thirty-nine week period was27, 2017, respectively, which primarily due to increasedconsisted of dividend income related to the investments in the period.marketable securities.
Interest Expense
Interest expense primarily consists of amortization of deferred financing costs, imputed interest on deferred compensation, interest on the current portion of our liabilities under the Tax Receivable Agreement, imputed interest on our deemed landlord financing liability as well as interest and fees on our Revolving Credit Facility.
Interest expense for the thirteen and thirty-nine weeks ended September 27, 201726, 2018 was $0.6 million and $1.8 million, respectively, compared to $0.5 million and $1.1 million, respectively, compared to $0.1 million and $0.3 million for the thirteen and thirty-nine weeks ended September 28, 2016.27, 2017, respectively. These increases were primarily due to the increased number of leases where we are deemed to be the accounting owner.


Income Tax Expense
We are the sole managing member of SSE Holdings, which is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, SSE Holdings is not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss generated by SSE Holdings is passed through to and included in the taxable income or loss of its members, including us, on a pro rata basis. We are subject to U.S. federal income taxes, in addition to state and local income taxes with respect to our allocable share of any taxable income or loss generated by SSE Holdings.

In December 2017, the TCJA was enacted into law. The TCJA provides for significant changes to the U.S. Internal Revenue Code of 1986, as amended, including the reduction of the U.S. federal corporate income tax rate from 35% to 21%, among other provisions.

Income tax expense wasdecreased to $2.2 million for the thirteen weeks ended September 26, 2018 compared to $2.5 million for the thirteen weeks ended September 27, 2017, comparedwhich primarily related to $2.4 millionthe aforementioned rate reduction resulting from the enactment of the TCJA. Our effective income tax rate increased to 24.4% for the thirteen weeks ended September 28, 2016. Our effective income tax rate decreased to26, 2018 from 24.1% for the thirteen weeks ended September 27, 2017 from 26.5% for the thirteen weeks ended September 28, 2016. The decrease2017. This increase was primarily driven by a benefit related to an adjustment recognizedincrease in connection with the filing of our prior year tax returns and higherownership as well as decreases in tax credits, which were partially offset by the increasedecrease in our ownership interest in SSE Holdings and higher foreign withholding taxes.the federal rate resulting from the TCJA.
Income tax expense was $5.7 million for the thirty-nine weeks ended September 26, 2018 compared to $7.5 million for the thirty-nine weeks ended September 27, 2017 compared2017. Our effective income tax rate decreased to $6.1 million20.2% for the thirty-nine weeks ended September 28, 2016. Our effective income tax rate increased to26, 2018 from 27.5% for the thirty-nine weeks ended September 27, 20172017. The decrease was primarily driven by the aforementioned rate reduction resulting from 26.6% for the thirty-nine weeks ended September 28, 2016.enactment of the TCJA.
As our ownership interest in SSE Holdings increases, our share of the taxable income of SSE Holdings will also increase. When compared to consolidated pre-tax income, this will generally result in increases to our effective income tax rate. Our weighted-average ownership interest in SSE Holdings increased to 70.9%78.2% and 70.3%75.6% for the thirteen and thirty-nine weeks ended September 27, 2017,26, 2018, respectively, compared to 66.1%70.9% and 61.5%70.3% for the thirteen and thirty-nine weeks ended September 28, 2016,27, 2017, respectively. This increase in ownership interest was the primary driver for the increase in our effective income tax rate for the thirty-nine week period, partially offset by a benefit related to an adjustment recognized in connection with the filing of our prior year tax returns and higher tax credits.
Net Income Attributable to Non-Controlling Interests
We are the sole managing member of SSE Holdings and have the sole voting power in, and control the management of, SSE Holdings. Accordingly, we consolidate the financial results of SSE Holdings and report a non-controlling interest on our Condensed Consolidated Statements of Income, representing the portion of net income attributable to the other members of SSE Holdings. The LLCThird Amended and Restated Limited Liability Company Agreement of SSE Holdings provides that holders of LLC Interests may, from time to time, require SSE Holdings to redeem all or a portion of their LLC Interests for newly-issued shares of Class A common stock on a one-for-one basis. In connection with any redemption or exchange, we will receive a corresponding number of LLC Interests, increasing our total ownership interest in SSE Holdings. The weighted average ownership percentages for the applicable reporting periods are used to attribute net income and other comprehensive income to Shake Shack Inc. and the non-controlling interest holders.
Net income attributable to non-controlling interests was $2.91.9 million and $3.02.9 million for the thirteen weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, respectively, a decrease of $0.11.0 million or 5.0%33.1%. This decrease was primarily driven by the decrease in the non-controlling interest holders' weighted average ownership, which was 29.1%21.8% and 33.9%,29.1% for the thirteen weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, respectively.
Net income attributable to non-controlling interests was $7.8$6.4 million and $8.2$7.8 million for the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, respectively, a decrease of $0.4$1.4 million or 4.8%18.2%. This decrease was primarily driven by a decrease in the non-controlling interest holders' weighted average ownership, which was 24.4% and 29.7% and 38.5% for the thirty-nine weeks ended September 27, 201726, 2018 and September 28, 2016,27, 2017, respectively.


NON-GAAP FINANCIAL MEASURES
 
To supplement the consolidated financial statements, which are prepared and presented in accordance with U.S. generally accepted accounting principles (“GAAP”), we use the following non-GAAP financial measures: Shack-level operating profit, Shack-level operating profit margin, EBITDA, adjusted EBITDA, adjusted EBITDA margin, adjusted pro forma net income and adjusted pro forma earnings per fully exchanged and diluted share (collectively the "non-GAAP financial measures").
Shack-Level Operating Profit
Shack-level operating profit is defined as Shack sales less Shack-level operating expenses including food and paper costs, labor and related expenses, other operating expenses and occupancy and related expenses.
How This Measure Is Useful
When used in conjunction with GAAP financial measures, Shack-level operating profit and Shack-level operating profit margin are supplemental measures of operating performance that we believe are useful measures to evaluate the performance and profitability of our Shacks. Additionally, Shack-level operating profit and Shack-level operating profit margin are key metrics used internally by our management to develop internal budgets and forecasts, as well as assess the performance of our Shacks relative to budget and against prior periods. It is also used to evaluate employee compensation as it serves as a metric in certain of our performance-based employee bonus arrangements. We believe presentation of Shack-level operating profit and Shack-level operating profit margin provides investors with a supplemental view of our operating performance that can provide meaningful insights to the underlying operating performance of our Shacks, as these measures depict the operating results that are directly impacted by our Shacks and exclude items that may not be indicative of, or are unrelated to, the ongoing operations of our Shacks. It may also assist investors to evaluate our performance relative to peers of various sizes and maturities and provides greater transparency with respect to how our management evaluates our business, as well as our financial and operational decision-making.
Limitations of the Usefulness of this Measure
Shack-level operating profit and Shack-level operating profit margin may differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of Shack-level operating profit and Shack-level operating profit margin is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. Shack-level operating profit excludes certain costs, such as general and administrative expenses and pre-opening costs, which are considered normal, recurring cash operating expenses and are essential to support the operation and development of our Shacks. Therefore, this measure may not provide a complete understanding of the operating results of our company as a whole and Shack-level operating profit and Shack-level operating profit margin should be reviewed in conjunction with our GAAP financial results. A reconciliation of Shack-level operating profit to operating income, the most directly comparable GAAP financial measure, is as follows.



  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
(dollar amounts in thousands)September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

Operating income$10,610
 $9,170
 $27,975
 $22,817
Less:       
 Licensing revenue3,509
 2,696
 9,416
 6,774
Add:       
 General and administrative expenses9,204
 7,885
 27,352
 22,265
 Depreciation expense5,604
 3,719
 15,610
 10,229
 Pre-opening costs2,670
 2,598
 6,961
 6,708
 Loss on disposal of property and equipment204
 
 317
 
Shack-level operating profit$24,783
 $20,676
 $68,799
 $55,245
         
Total revenue$94,609
 $74,567
 $262,674
 $195,204
Less: licensing revenue3,509
 2,696
 9,416
 6,774
Shack sales$91,100
 $71,871
 $253,258
 $188,430
         
Shack-level operating profit margin27.2% 28.8% 27.2% 29.3%

  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
(dollar amounts in thousands)September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Operating income$9,343
 $10,610
 $28,875
 $27,975
Less:       
 Licensing revenue3,765
 3,509
 10,176
 9,416
Add:       
 General and administrative expenses13,151
 9,204
 37,547
 27,352
 Depreciation expense7,439
 5,604
 20,905
 15,610
 Pre-opening costs3,581
 2,670
 8,031
 6,961
 Loss on disposal of property and equipment157
 204
 543
 317
Shack-level operating profit$29,906
 $24,783
 $85,725
 $68,799
         
Total revenue$119,647
 $94,609
 $335,045
 $262,674
Less: licensing revenue3,765
 3,509
 10,176
 9,416
Shack sales$115,882
 $91,100
 $324,869
 $253,258
         
Shack-level operating profit margin25.8% 27.2% 26.4% 27.2%

EBITDA and Adjusted EBITDA
EBITDA is defined as net income before interest expense (net of interest income), income tax expense and depreciation and amortization expense. Adjusted EBITDA is defined as EBITDA (as defined above) excluding equity-based compensation expense, deferred rent expense, losses on the disposal of property and equipment, as well as certain non-recurring items that we don't believe directly reflect our core operations and may not be indicative of our recurring business operations.
How These Measures Are Useful
When used in conjunction with GAAP financial measures, EBITDA and Adjustedadjusted EBITDA are supplemental measures of operating performance that we believe are useful measures to facilitate comparisons to historical performance and competitors' operating results. Adjusted EBITDA is a key metric used internally by our management to develop internal budgets and forecasts and also serves as a metric in our performance-based equity incentive programs and certain of our bonus arrangements. We believe presentation of EBITDA and Adjustedadjusted EBITDA provides investors with a supplemental view of our operating performance that facilitates analysis and comparisons of our ongoing business operations because they exclude items that may not be indicative of our ongoing operating performance.
Limitations of the Usefulness of These Measures
EBITDA and Adjustedadjusted EBITDA may differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of EBITDA and Adjustedadjusted EBITDA is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. EBITDA and Adjustedadjusted EBITDA exclude certain normal recurring expenses. Therefore, these measures may not provide a complete understanding of our performance and should be reviewed in conjunction with our GAAP financial measures. A reconciliation of EBITDA and Adjustedadjusted EBITDA to net income, the most directly comparable GAAP measure, is as follows.



 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
(in thousands)(in thousands)September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

(in thousands)September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Net incomeNet income$7,870
 $6,789
 $19,916
 $16,689
Net income$6,946
 $7,870
 $22,496
 $19,916
Depreciation expenseDepreciation expense5,604
 3,719
 15,610
 10,229
Depreciation expense7,439
 5,604
 20,905
 15,610
Interest expense, netInterest expense, net456
 66
 1,086
 198
Interest expense, net591
 456
 1,762
 1,086
Income tax expenseIncome tax expense2,494
 2,443
 7,537
 6,058
Income tax expense2,241
 2,494
 5,679
 7,537
EBITDAEBITDA16,424
 13,017
 44,149
 33,174
EBITDA17,217
 16,424
 50,842
 44,149
                
Equity-based compensationEquity-based compensation1,289
 1,577
 3,823
 3,817
Equity-based compensation1,636
 1,289
 4,376
 3,823
Deferred rentDeferred rent240
 560
 767
 1,807
Deferred rent813
 240
 521
 767
Loss on disposal of property and equipmentLoss on disposal of property and equipment204
 
 317
 
Loss on disposal of property and equipment157
 204
 543
 317
Executive transition costs(1)
13
 
 664
 
ADJUSTED EBITDA$18,170
 $15,154
 $49,720
 $38,798
Legal settlement(1)
Legal settlement(1)
1,200
 
 1,200
 
Executive and management transition costs(2)
Executive and management transition costs(2)
32
 13
 280
 664
Project Concrete(3)
Project Concrete(3)
292
 
 608
 
Costs related to relocation of Home Office(4)
Costs related to relocation of Home Office(4)
2
 
 1,019
 
Adjusted EBITDAAdjusted EBITDA$21,349
 $18,170
 $59,389
 $49,720
        
Adjusted EBITDA marginAdjusted EBITDA margin17.8% 19.2% 17.7% 18.9%

(1)RepresentsExpense incurred to establish an accrual related to the settlement of a legal matter.
(2)For the thirteen and thirty-nine weeks ended September 26, 2018, represents fees paid in connection with the search for our open executive and key management positions, and other transition costs, including related equity-based compensation. For the thirteen and thirty-nine weeks ended September 27, 2017, represents fees paid to an executive recruiting firm and a non-recurring signing bonus and certain other benefits paid upon the hiring of our chief financial officer.

(3) Represents consulting and advisory fees related to our enterprise-wide system upgrade initiative called Project Concrete.
(4) Costs incurred in connection with our relocation to a new Home Office, which is comprised of: (i) $326 of duplicative non-cash deferred rent, (ii) $672 net loss on the sublease of our prior Home Office, including the write-off of certain fixed assets and (iii) $21 of administrative cost.
Adjusted Pro Forma Net Income and Adjusted Pro Forma Earnings Per Fully Exchanged and Diluted Share
Adjusted pro forma net income represents net income attributable to Shake Shack Inc. assuming the full exchange of all outstanding SSE Holdings, LLC membership interests ("LLC Interests") for shares of Class A common stock, adjusted for certain non-recurring items that we don'tdo not believe are directly reflectrelated to our core operations and may not be indicative of our recurring business operations. Adjusted pro forma earnings per fully exchanged and diluted share is calculated by dividing adjusted pro forma net income by the weighted-average shares of Class A common stock outstanding, assuming the full exchange of all outstanding LLC Interests, after giving effect to the dilutive effect of outstanding equity-based awards.
How These Measures Are Useful
When used in conjunction with GAAP financial measures, adjusted pro forma net income and adjusted pro forma earnings per fully exchanged and diluted share are supplemental measures of operating performance that we believe are useful measures to evaluate our performance period over period and relative to our competitors. By assuming the full exchange of all outstanding LLC Interests, we believe these measures facilitate comparisons with other companies that have different organizational and tax structures, as well as comparisons period over period because it eliminates the effect of any changes in net income attributable to Shake Shack Inc. driven by increases in our ownership of SSE Holdings, which are unrelated to our operating performance, and excludes items that are non-recurring or may not be indicative of our ongoing operating performance.
Limitations of the Usefulness of These Measures
Adjusted pro forma net income and adjusted pro forma earnings per fully exchanged and diluted share may differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of adjusted pro forma net income and adjusted pro forma earnings per fully exchanged and diluted share should not be considered alternatives to net income and


earnings per share, as determined under GAAP. While these measures are useful in evaluating our performance, it does not account for the earnings attributable to the non-controlling interest holders and therefore does not provide a complete understanding of the net income attributable to Shake Shack Inc. Adjusted pro forma net income and adjusted pro forma earnings per fully exchanged and diluted share should be evaluated in conjunction with our GAAP financial results. A reconciliation of adjusted pro forma net income to net income attributable to Shake Shack Inc., the most directly comparable GAAP measure, and the computation of adjusted pro forma earnings per fully exchanged and diluted share are set forth below.


 Thirteen Weeks Ended  Thirty-Nine Weeks Ended  Thirteen Weeks Ended  Thirty-Nine Weeks Ended 
(in thousands, except per share amounts)(in thousands, except per share amounts)September 27
2017

 September 28
2016

 September 27
2017

 September 28
2016

(in thousands, except per share amounts)September 26
2018

 September 27
2017

 September 26
2018

 September 27
2017

Numerator:Numerator:       Numerator:       
Net income attributable to Shake Shack Inc.$5,025
 $4,997
 $16,137
 $12,143
Adjustments:       
 
Reallocation of net income attributable to non-controlling interests from the assumed exchange of LLC Interests(1)
1,921
 2,873
 6,359
 7,773
 
Legal settlement(2)
1,200
 
 1,200
 
Net income attributable to Shake Shack Inc.$4,997
 $3,766
 $12,143
 $8,526
 
Executive and management transition costs(3)
32
 13
 280
 664
Adjustments:        
Project Concrete(4)
292
 
 608
 
 
Reallocation of net income attributable to non-controlling interests from the assumed exchange of LLC Interests(1)
2,873
 3,023
 7,773
 8,163
 
Costs related to relocation of Home Office(5)
2
 
 1,019
 
 
Executive transition costs(2)
13
 
 664
 
 Tax effect of change in tax basis related to the adoption of ASC 606
 
 (311) 
 
Income tax expense(3)
(1,695) (1,318) (3,448) (3,171) 
Income tax expense(6)
(616) (1,695) (815) (3,448)
Adjusted pro forma net income$6,188
 $5,471
 $17,132
 $13,518
Adjusted pro forma net income$7,856
 $6,188
 $24,477
 $17,132
                
Denominator:Denominator:       Denominator:       
Weighted-average shares of Class A common stock outstanding—diluted26,477
 24,554
 26,248
 22,805
Weighted-average shares of Class A common stock outstanding—diluted29,883
 26,477
 28,820
 26,248
Adjustments:       Adjustments:       
 
Assumed exchange of LLC Interests for shares of Class A common stock(1)
10,693
 12,314
 10,882
 13,988
 
Assumed exchange of LLC Interests for shares of Class A common stock(1)
8,090
 10,693
 8,998
 10,882
Adjusted pro forma fully exchanged weighted-average shares of Class A common stock outstanding—diluted37,170
 36,868
 37,130
 36,793
Adjusted pro forma fully exchanged weighted-average shares of Class A common stock outstanding—diluted37,973
 37,170
 37,818
 37,130
                
Adjusted pro forma earnings per fully exchanged share—dilutedAdjusted pro forma earnings per fully exchanged share—diluted$0.17
 $0.15
 $0.46
 $0.37
Adjusted pro forma earnings per fully exchanged share—diluted$0.21
 $0.17
 $0.65
 $0.46
(1)Assumes the exchange of all outstanding LLC Interests for shares of Class A common stock, resulting in the elimination of the non-controlling interestsinterest and recognition of the net income attributable to non-controlling interests.
(2)RepresentsExpense incurred to establish an accrual related to the settlement of a legal matter.
(3)For the thirteen and thirty-nine weeks ended September 26, 2018, represents fees paid in connection with the search for our open executive and key management positions, and other transition costs, including related equity-based compensation. For the thirteen and thirty-nine weeks ended September 27, 2017, represents fees paid to an executive recruiting firm and a non-recurring signing bonus and certain other benefits paid upon the hiring of our chief financial officer.
(4) Represents consulting and advisory fees related to our enterprise-wide system upgrade initiative called Project Concrete.
(5) Costs incurred in connection with our relocation to a new Home Office, which is comprised of: (i) $326 of duplicative non-cash deferred rent, (ii) $672 net loss on the sublease of our prior Home Office, including the write-off of certain fixed assets and (iii) $21 of administrative costs.
(3)(6)Represents the tax effect of the aforementioned adjustments and pro forma adjustments to reflect corporate income taxes at assumed effective tax rates of 26.7% and 21.8% for thirteen and thirty-nine weeks ended September 26, 2018, respectively, and 40.4% and 39.1% for the thirteen and thirty-nine weeks ended September 27, 2017, respectively, and 40.7% and 40.6% for the and thirteen and thirty-nine weeks ended September 28, 2016, respectively. Amounts include provisions for U.S. federal and certain state and local income taxes, assuming the highest statutory rates apportioned to each applicable state and local jurisdiction, and exclude the effect of any adjustments related to the filing of prior year tax returns.jurisdiction.



LIQUIDITY AND CAPITAL RESOURCES
Sources and Uses of Cash
Our primary sources of liquidity are cash from operations, cash and cash equivalents on hand, short-term investments and availability under our Revolving Credit Facility. As of September 27, 2017,26, 2018, we maintained a cash and cash equivalents balance of $26.9$29.3 million, a short-term investments balance of $63.3$61.8 million and had $19.3 million of availability under our Revolving Credit Facility.
Our primary requirements for liquidity are to fund our working capital needs, operating lease obligations, capital expenditures, deemed landlord financing obligations and general corporate needs. Our requirements for working capital are not significant because our guests pay for their food and beverage purchases in cash or on debit or credit cards at the time of the sale and we are able to sell many of our inventory items before payment is due to the supplier of such items. Our ongoing capital expenditures are principally related to opening new Shacks, existing Shack capital investments (both for remodels and maintenance), as well as investments in our corporate infrastructure.
In addition, we are obligated to make payments to certain members of SSE Holdings under the Tax Receivable Agreement. As of September 27, 2017,26, 2018, such obligations totaled $284.0 million.$202.0 million. Amounts payable under the Tax Receivable Agreement are contingent upon, among other things, (i) generation of future taxable income over the term of the Tax Receivable Agreement and (ii) future changes in tax laws. If we do not generate sufficient taxable income in the aggregate over the term of the Tax Receivable Agreement to utilize the tax benefits, then we would not be required to make the related TRA Payments. Although the amount of any payments that must be made under the Tax Receivable Agreement may be significant, the timing of these payments will vary and will generally be limited to one payment per member per year. The amount of such payments are also limited to the extent we utilize the related deferred tax assets. The payments that we are required to make will generally reduce the amount of overall cash flow that might have otherwise been available to us or to SSE Holdings, but we expect the cash tax savings we will realize from the utilization of the related deferred tax assets to fund the required payments.
We believe that cash provided by operating activities, cash on hand and availability under the Revolving Credit Facility will be sufficient to fund our operating lease obligations, capital expenditures, deemed landlord financing obligations and working capital needs for at least the next 12 months and the foreseeable future.
Summary of Cash Flows
The following table presents a summary of our cash flows from operating, investing and financing activities.
Thirty-Nine Weeks Ended Thirty-Nine Weeks Ended 
(in thousands)September 27
2017

 September 28
2016

September 26
2018

 September 27
2017

Net cash provided by operating activities$53,971
 $40,522
$62,785
 $53,971
Net cash used in investing activities(41,455) (99,336)(58,910) (41,455)
Net cash provided by financing activities2,764
 192
3,913
 2,764
Increase (decrease) in cash15,280
 (58,622)
Increase in cash7,788
 15,280
Cash at beginning of period11,607
 70,849
21,507
 11,607
Cash at end of period$26,887
 $12,227
$29,295
 $26,887
Operating Activities
For the thirty-nine weeks ended September 27, 201726, 2018 net cash provided by operating activities was $54.0$62.8 million compared to $40.5$54.0 million for the thirty-nine weeks ended September 28, 2016,27, 2017, an increase of $13.5$8.8 million. This increase was primarily driven by the opening of 2128 new domestic company-operated Shacks.
Investing Activities
For the thirty-nine weeks ended September 27, 201726, 2018 net cash used in investing activities was $41.5$58.9 million compared to $99.3$41.5 million for the thirty-nine weeks ended September 28, 2016, a decrease27, 2017, an increase of $57.8$17.4 million. This decreaseincrease was primarily due to a decreasean increase in capital expenditures, with the opening of 28 new domestic company-operated Shacks, partially offset by an increase in net purchasessales of marketable securities.


Financing Activities
For the thirty-nine weeks ended September 27, 201726, 2018 net cash provided by financing activities was $2.8$3.9 million compared to $0.2$2.8 million for the thirty-nine weeks ended September 28, 2016,27, 2017, an increase of $2.6$1.1 million. This increase is primarily due to an increase of $4.5 million inlower payments made under the Tax Receivable Agreement and distributions to our non-controlling interest holders as compared to prior year, partially offset by lower proceeds from the exercise of employee stock options offset by $1.5 million in payments made under the Tax Receivable Agreement.and higher taxes paid related to net-settled equity awards.
Revolving Credit Facility
We maintain a Revolving Credit Facility that provides for a revolving total commitment amount of $50.0 million, of which $20.0 million is available immediately. The Revolving Credit Facility will mature and all amounts outstanding will be due and payable in February 2020. The Revolving Credit Facility permits the issuance of letters of credit upon our request of up to $10.0 million. Borrowings under the Revolving Credit Facility bear interest at either: (i) LIBOR plus a percentage ranging from 2.3% to 3.3% or (ii) the prime rate plus a percentage ranging from 0.0% to 0.8%, depending on the type of borrowing made under the Revolving Credit Facility. As of September 27, 2017,26, 2018, there were no amounts outstanding under the Revolving Credit Facility. We had $19.3 million of availability, as of September 27, 2017,26, 2018, after giving effect to $0.7 million in outstanding letters of credit.
The Revolving Credit Facility is secured by a first-priority security interest in substantially all of the assets of SSE Holdings and the guarantors. The obligations under the Revolving Credit Facility are guaranteed by each of SSE Holdings' wholly-owned domestic subsidiaries (with certain exceptions).
The Revolving Credit Facility contains a number of covenants that, among other things, restrict our ability to, subject to specified exceptions, incur additional debt; incur additional liens and contingent liabilities; sell or dispose of assets; merge with or acquire other companies; liquidate or dissolve ourselves; pay dividends or make distributions; engage in businesses that are not in a related line of business; make loans, advances or guarantees; engage in transactions with affiliates; and make investments. In addition, the Revolving Credit Facility contains certain cross-default provisions. We are required to maintain a specified consolidated fixed-charge coverage ratio and a specified funded net debt to adjusted EBITDA ratio, both as defined under the Revolving Credit Facility. As of September 27, 2017,26, 2018, we were in compliance with all covenants.
CONTRACTUAL OBLIGATIONS
 
There have been no material changes to the contractual obligations as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended,27, 2017, other than those made in the ordinary course of business and a lease entered into for a new home office. See "—Off-Balance Sheet Arrangements” for further details..
OFF-BALANCE SHEET ARRANGEMENTS
 
In August 2017, we entered into a lease for a new home office, with a term of 15 years and two five-year renewal options. Total minimum lease payments of over the initial term of the lease amount to $34.6 million.
There have been no other material changes to our off-balance sheet arrangements as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended.27, 2017.




CRITICAL ACCOUNTING POLICIES AND ESTIMATES
 
Our discussion and analysis of our consolidated financial condition and results of operations is based upon the accompanying condensed consolidated financial statements and notes thereto, which have been prepared in accordance with GAAP. The preparation of the condensed consolidated financial statements requires us to make estimates, judgments and assumptions, which we believe to be reasonable, based on the information available. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. Variances in the estimates or assumptions used to actual experience could yield materially different accounting results. On an ongoing basis, we evaluate the continued appropriateness of our accounting policies and resulting estimates to make adjustments we consider appropriate under the facts and circumstances. There have been no significant changes to our critical accounting policies as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 28, 201627, 2017, as amended.except for those made in connection with the adoption of ASC 606. See "Note 3: Revenue" under Part I, Item 1 of this Form 10-Q.
Recently Issued Accounting Pronouncements
See "Note 2: Summary of Significant Accounting Policies—Recently Issued Accounting Pronouncements” under Part I, Item 1 of this Form 10-Q.
Item 3. Quantitative and Qualitative Disclosures About Market Risk.
There have been no material changes to our exposure to market risks as described in Part II, Item 7A of our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended.27, 2017.
Item 4. Controls and Procedures.
DISCLOSURE CONTROLS AND PROCEDURES
 
Under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of such date. Our disclosure controls and procedures are designed to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.
CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING
 
There were no changes to our internal control over financial reporting that occurred during the quarter ended September 27, 201726, 2018 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


PART II – OTHER INFORMATION
Item 1. Legal Proceedings.
The information required by this Item is incorporated by reference to Part I, Item 1, Note 13:14: Commitments and Contingencies—Legal Contingencies.
Item 1A. Risk Factors.
There have been no material changes with respect to the risk factors disclosed in our Annual Report on Form 10-K for the fiscal year ended December 28, 2016, as amended.27, 2017.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.
None.
Item 3. Defaults Upon Senior Securities.
None.
Item 4. Mine Safety Disclosures.
Not applicable.
Item 5. Other Information.
None.


Item 6. Exhibits.
Exhibit
Number
   Incorporated by Reference 
Filed
Herewith
 Exhibit Description Form Exhibit Filing Date 
  8-K 3.1 2/10/2015  
  8-K 3.2 2/10/2015  
  S-1/A 4.1 1/28/2015  
        *
        *
        #
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Exhibit
Number
   Incorporated by Reference 
Filed
Herewith
 Exhibit Description Form Exhibit Filing Date 
  8-K 3.1 2/10/2015  
  8-K 3.2 2/10/2015  
  S-1/A 4.1 1/28/2015  
  8-K 10.1 10/26/2018  
        *
        *
        #
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#Furnished herewith.



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
 Shake Shack Inc.
  (Registrant)
   
Date: November 2, 20175, 2018By:  /s/ Randy Garutti
  Randy Garutti
  
Chief Executive Officer
(Principal Executive Officer and Duly Authorized Officer)
   
Date: November 2, 20175, 2018By:  /s/ Tara Comonte
  Tara Comonte
  Chief Financial Officer
(Principal Financial Officer and Duly Authorized Officer)




42 | Shake Shack Inc. shak-img_burgersmalla03.jpgForm 10-Q | 43