Thursday's Tech Winners & Losers

Shares of VitalStream(VSTH Quote) were among technology's winners Thursday, soaring 20% after the provider of audio and video streaming services agreed to be acquired by Internap(INAP Quote) for about $217 million in stock.

Internap will issue about 11.9 million shares to VitalStream, representing about 26% of the combined company's shares. The deal, which is expected to close during the first quarter of 2007, will be slightly dilutive to Internap's earnings in 2007, but will add to earnings beginning in 2008. Shares of VitalStream were trading up $1.29 to $7.69; shares of Internap fell $1.49, or 9%, to $15.56.

Systemax(SYX Quote) tumbled 16% after the computer hardware distributor further delayed the release of its second-quarter results. The company said that it is "working diligently" to complete the report. On Aug. 29, the company said that it would post second-quarter results in about six weeks. Shares were down $2.37 to $12.67.

Shares of Cypress Semiconductor(CY Quote) slipped 3% after the chip company said that it received notification that the Department of Justice plans to launch an investigation of the SRAM market. Cypress said it will cooperate fully with the DOJ's antitrust division. Shares were trading down 53 cents to $19.59.

Compuware(CPWR Quote) fell 3% after the software maker gave a second-quarter preview that fell short of Wall Street's forecast. For the quarter ended Sept. 30, the company expects to post earnings of 7 cents a share and revenue of $288 million. Analysts polled by Thomson First Call expect earnings of 8 cents a share on revenue of $300.9 million. In May, during Compuware's first-quarter earnings conference call, the company said its second quarter would be "challenging," but said that second-half results will show greater strength. Shares were trading down 34 cents to $7.61.