NEW YORK ( TheStreet) -- Yahoo! ( YHOO) was a big gainer in premarket trading on Tuesday, rising 3.68% to $16.35 following the company's strong third-quarter results on Monday. Despite underwhelming recent results from tech heavyweights such as Microsoft ( MSFT) and Google ( MSFT), the Internet giant comfortably beat Wall Street's top- and bottom-line estimates. "Yahoo! had a solid third quarter, and we are encouraged by the stabilization in search and display revenue," said Marissa Mayer, the company's CEO. "We're taking important steps to position Yahoo! for long-term success, and we're confident that our focus on quality and improving the user experience will drive increased value for our advertisers, partners and shareholders." Western Digital ( WDC), however, was a big loser, tumbling 7.2% to $32.74. On Monday, after market close, the hard disk drive maker reported strong fiscal first-quarter results but offered weak guidance. Shares of Texas Instruments ( TXN) dipped 0.5% to $27.65 after the chipmaker released third-quarter results and investors responded to the firm's weaker-than-expected guidance. The Dallas-based company cited ongoing weakness in the economy and the semiconductor market. Facebook ( FB), which reports its third-quarter results on Tuesday, slipped 0.47% to $19.23 before market open. Shares of Apple ( AAPL), which is expected to launch the iPad Mini at a press event on Tuesday, dipped 0.57% to $630.4. TheStreet will be live-blogging the Apple event, starting at 12:30 p.m. EDT. --Written by James Rogers in New York. Follow @jamesjrogers >To submit a news tip, send an email to: firstname.lastname@example.org.