PC Connection Inc. and its subsidiaries, dba Connection®, (www.connection.com; NASDAQ: CNXN) is a Fortune 1000 company headquartered in Merrimack, NH. With offices throughout the United States, Connection delivers custom-configured computer systems overnight from its ISO 9001:2015 certified technical configuration lab at its distribution center in Wilmington, OH. In addition, the Company has over 2,500 technical certifications to ensure it can solve the most complex issues of its customers. Connection also services international customers through its GlobalServe subsidiary, a global IT procurement and service management company. Investors and media can find more information about Connection at http://ir.connection.com.
Net sales of $632.9 million for the first quarter of 2019 reflected an increase of $8.0 million compared to the first quarter of 2018, which was driven primarily by growth in our Enterprise Solutions selling segment. Our investments in advance solution sales led to increased sales of mobility and software products, though we experienced downward pressure on net sales growth because a greater portion of our software sales were recognized on a net basis in the current quarter. Gross profit dollars increased year-over-year by $3.0 million due to higher invoice selling margins realized on advanced solution sales and increased sales of software products. SG&A expenses increased by $0.3 million, but decreased as a percentage of net sales. Operating income in the first quarter of 2019 increased year-over-year both in dollars and as a percentage of net sales by $1.9 million and 30 basis points, respectively, primarily as a result of increased net sales and lower SG&A expenses as a percentage of net sales.