Ken Lamneck
Analyst · Raymond James
Thank you, Glynis. Hello, everyone. Thank you for joining us today to discuss our second quarter 2017 operating results. I'm pleased to report that our team delivered another quarter of strong operating results. Global IT demand continue to be healthy in the second quarter, and we executed very well, creating market share in strategic solution areas, substantially completing the integration of Datalink into our business and delivering on our financial commitments.
For the second quarter of 2017, consolidated net sales were $1.68 billion, up 16% year-over-year, reflecting growth of 7% in our core business, in addition of Datalink begin in January 6, net sales of constant currency were up 17%. Gross profit was $251 million in second quarter, up 20% year-over-year and up 22% in constant currency. Gross margins were 14.9%, up approximately 50 basis points year-over-year, reflecting the constant -- positive contribution of Datalink, partly offset by lower gross margins in our core business, driven by a lower mix of fees from software enterprise agreements and service of sales.
Consolidated selling and administrative expenses were $181 million in the second quarter, up 20% year-over-year, including both slight growth of 2% in our core business and the addition of Datalink. Solid organic growth in sales and gross profit, with effective cost control in our core business, combined with a positive contribution from Datalink business led to an increase in adjusted earnings from operations of 20% compared to the second quarter of last year, and adjusted EFO margin of 4.2%, which is a new record for us.
On a GAAP basis, earnings from operations increased 19% to $69 million, and adjusted diluted earnings per share was $1.14, also another quarterly record for us, and on a GAAP basis diluted earnings per share was $1.11. Within these results, the North America business reported 24% top line growth year-over-year, including double-digit organic growth as well as the addition of Datalink to the business.
In our core business, we continued to see growth in hardware categories, fueled by demand for client devices and data center solutions. We saw high single-digit growth with public sector and SMB clients, while our large enterprise clients grew much faster year-over-year due to the new client wins, on-growing refresh cycles and certain multi-quarter data center projects. In addition, the Datalink business added approximately $124 million of sales to our quarter -- to our results for the quarter.
Gross profit in North America in the second quarter outgrew sales at 27% year-over-year with gross margins increasing 50 basis points to 14.3%. We continue to focus on controlling costs in our core business and realize cost savings from the Datalink integrations, generally in line with our expectations, which drove adjusted earnings from operations up 23% year-over-year to $51 million.
As discussed in our last call on May 1, we completed the migration of the Datalink business onto our SAP platform. The systems integration effort was a success, and over the balance of the second quarter, we focused our efforts on sales engagement and integrated certain back-office functions. As of today, I'm pleased to report that we have substantially completed the integration plans we had for 2017. As we move forward, we will focus on optimizing the sales engagement and service delivery models in consolidation within our facility's footprint.
Moving onto the second quarter results in EMEA. In the second quarter, our EMEA business continued to deliver on its strategy to expand cloud and services sales across the region while driving above-market growth in hardware in the U.K. business. All of which led to another quarter of strong earnings results. Net sales in EMEA increased 1% year-over-year in constant currency, reflecting the double-digit growth in hardware and services sales and a decline in software sales due to a higher mix of cloud maintenance sales that are recorded net.
Helping our clients assess and implement cloud solutions is a key component of our strategy. Since cloud sales are recorded net, the shift in sales mix continues to dampen our top line comparisons year-over-year. However, gross profit EMEA grew 8% year-over-year on constant currency, which we believe is a better reflection of the underlying health of the business. In addition, we began to realize the benefits of recent cost-reduction actions of EMEA, which, when combined with our gross profit growth, drove adjusted earnings from operations up 16% and EFO margin of 4.0%, up 70 basis points compared to the same period last year.
In Asia Pacific, our team also executed very well, delivering double-digit gross profit and earnings growth in the second quarter. Higher hardware sales, significantly higher software maintenance in cloud sales, combined with the contribution from the Ignia business to service sales since the acquisition in the third quarter of 2016 drove gross profit up 19% and earnings from operations up 10% year-over-year. Demand trends for traditional hardware and software offerings in the second quarter continues to support a stable and growing global IT market. We also continue to see clients explore and adopt cloud solutions to increase efficiency and agility within their environment, which drove gross profit earned from cloud sales to 40% of our gross profit.
Further in U.S., market share data for the channel shows that sales and devices continues to be healthy for all players, and we could choose to gain share in the data center category even before considering the market share we gained by bringing Datalink into our portfolio. Our growing cloud data center supply chain capabilities, combined with our best-in-class digital marketing platform are allowing us to build momentum in key markets and clients.
Our partners are also taking notice. Recently, Insight received Microsoft's Worldwide Mobile Application Development Partner of the Year Award and Microsoft's U.S. Transformation Partner of the Year Award, 2 awards recognized in Insight's investments in key areas of growth and innovation while continuing to serve as Microsoft's largest channel partner worldwide. The solid market backdrop, combined with our deep portfolio of offerings and strong execution led to record-level sales, EFO and EPS results in the first half of 2017. As we head into the back half, we believe our business is healthy and positioned well to close out the year strong.
And now I'll hand the call back over to Glynis, who will discuss additional highlights for our first half financial results. Glynis?