Buoyed by a strong fiscal third-quarter report, electronic parts manufacturer Jabil Circuit Inc.'s shares gained more in the second quarter than other information technology companies in the S&P 500.
Jabil's shares surged 71.5 percent during the period, helped by soaring earnings in the period that ended May 31.
Shares of Electronic Data Systems Corp. climbed as well, seeing a rise of 47.6 percent during the same quarter in which Hewlett-Packard Co. agreed to buy the technology-services provider.
HP said in May it would pay $13.2 billion for EDS, and HP said Monday that it received U.S. antitrust approval for the acquisition. The deal still requires European antitrust approval and the approval of EDS shareholders.
Companies on the declining side of the sector during the second quarter included server and software maker Sun Microsystems and Internet icon Yahoo Inc.
Sun's shares plunged 29.4 percent; the company surprised investors during the quarter by reporting it swung to a fiscal third-quarter loss, impacted by acquisition costs and weak sales to U.S. consumer-focused companies.
And Yahoo's shares lost 26.3 percent during the period. In May, Microsoft Corp. withdrew its $47.5 billion bid for the company, and Yahoo also announced then that it reached an advertising deal with rival Google Inc.
Yahoo has also been fending off activist investor Carl Icahn, who is trying to overthrow the company's board due to its rejection of Microsoft's bid.
Several executives have recently departed Yahoo, as well.
The information technology sector rose 3.3 percent during the quarter. For the year to date, the sector is down 12.6 percent.
The overall S&P 500 fell 3.4 percent during the quarter and is down 12.9 percent for the year to date.