Seagate (STX) was one of tech’s big gainers in premarket trading on Tuesday, rising 3.01% to $23.97 as the company prepares to join the S&P 500.
The hard drive maker will replace Progress Energy (PGN) after the close of trading on June 29, S&P Indices announced after market close on Monday.
Also on Monday, Seagate announced a strategic agreement for the development of solid state drives for the consumer and enterprise markets with Israeli company DensBits Technologies. As part of the deal, Seagate has made an undisclosed equity investment in DensBits.
Seagate was also one of the most active premarket Nasdaq stocks on share volume of 312,562.
Facebook (FB) climbed 1.06% to $32.40 before market open as investors digested media reports that the company is expanding its ad network.
The social networker, which added Chief Operating Officer Sheryl Sandberg to its board on Monday, was also an active premarket Nasdaq stock on share volume of 90,981.
Facebook partner Zynga (ZNGA) rose 2.89% to $6.24. Facebook is placing ads on Zynga’s Web site, according to The Wall Street Journal, in an attempt to rival Google’s (GOOG) AdSense.