Computer seller CDW ( CDWC) said its second-quarter earnings increased 9% from the year-ago period, helped by revenue growth. The Vernon Hills, Ill.-based company earned $73 million, or 91 cents a share, including 3 cents a share stock based expenses, in the second quarter, compared with earnings of $67 million, or 80 cents a share, in the same period a year earlier. Analysts polled by Thomson First Call were expecting the earnings of 79 cents a share in the most recent quarter. Second-quarter revenue rose 6.1% to $1.63 billion from a year ago. Analysts were expecting revenue of $1.65 billion in the most recent quarter. Corporate sector revenue increased 3.3% to $1.11 billion and public sector revenue increased 12.6% to $521.6 million. June sales increased 5.8% to $600.4 million from the year ago period. Average daily sales in June rose to $27.3 million from $25.8 million in June 2005. Average daily sales for the entire June-ending quarter totaled $25.5 million, an increase of 6.1% from the year-earlier period. The company said that the product categories notebook CPUs, software, video, memory, and input devices achieved the strongest year-over-year unit volume growth for the quarter. Gross profit increased 11.2% to $264 million and gross profit margin rose 74 basis points to 16.2% from 15.4% a year earlier due to increased net service contract and commission revenue, a higher level of vendor incentives, and a favorable comparison of delivery charges. During the second quarter the company repurchased 1.5 million shares at an average price of $54.51 a share. Under the 5 million shares repurchase program approved in April 2006, 3.5 million shares remain available for purchase. "Our commitment to serving our customers is the foundation of our financial performance, " the company said. "In addition to our consistent emphasis on customer service, our disciplined focus on profitable growth, operational efficiency, and returning capital to shareholders through share repurchases resulted in a strong quarter characterized by improved operating income and record earnings per share." Shares surged $5.04 to $57.47.