NEW YORK ( TheStreet) -- GT Solar International (SOLR) was popping 12.7% to $13.10 in premarket trading Tuesday after the Merrimack, N.H.-based provider of production equipment and materials for the solar and LED markets blew past Wall Street's expectations for its fiscal fourth quarter and boosted its forecast for fiscal 2012.
HiSoft International (HSFT) was surging 6.5% to $14.49 after the China-based information technology services provider said revenue rose more than 45% year over year in its fiscal first quarter.
Electronics firm Sony (SNE) said Tuesday that its music Web site in Greece has been hacked affecting 8,500 user accounts. Still, shares were up 4.2% to $27.70 in premarket trading Tuesday.
Shares of Autozone (AZO) were rising 3.7% to $287 after the automotive replacement retailer posted third-quarter profit of $5.29 vs. the average analyst expectation of $4.98 a share.
Medical technology company Medtronic (MDT) reported fourth-quarter non-GAAP profit of 90 cents a share vs. the consensus target of 92 cents a share. Shares were falling 2.5% to $40.25.
Shares AK Steel ( AKS) were rising 1.9% to $14.35 after the steel products producer announced a price increase for its carbon steel products. Base prices will increase by $50 a ton for hot-rolled and cold-rolled carbon steel products and by $60 a ton for coated carbon steel products.
Barrick Gold (ABX) was rising 0.7% to $45.86 following reports that Zambia will permit the producer to buy the Lumwana copper mine in connection with its $7.5 billion purchase of Equinox Minerals (EQN), Bloomberg reported.
Semiconductor service company Applied Materials (AMAT) is expected to post second-quarter profit of 37 cents a share on Tuesday. Shares were up 0.4% to $13.85.
Insurer American International Group's (AIG) $9 billion stock offering is expected to price late Tuesday, according to reports. Shares were trading sideways at $30.
Russian search engine company Yandex ( YNDX) is expected to begin trading on Nasdaq under the symbol YNDX Tuesday. The IPO priced at $25 a share, which was better than expected.
J.M. Smucker ( SJM) increased prices for the majority of its coffee products sold in the U.S. by 11% on average. >>Search for Highest Dividends by Rate or Yield
|More on Earnings Today's Top Earnings|
>To contact the writer of this article, click here: Andrea Tse. >To follow the writer on Twitter, go to Andrea Tse. >To submit a news tip, send an email to: firstname.lastname@example.org.
Select the service that is right for you!COMPARE ALL SERVICES
- $2.5+ million portfolio
- Large-cap and dividend focus
- Intraday trade alerts from Cramer
- Weekly roundups
Access the tool that DOMINATES the Russell 2000 and the S&P 500.
- Buy, hold, or sell recommendations for over 4,300 stocks
- Unlimited research reports on your favorite stocks
- A custom stock screener
- Upgrade/downgrade alerts
- Diversified model portfolio of dividend stocks
- Alerts when market news affect the portfolio
- Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
- Real Money + Doug Kass Plus 15 more Wall Street Pros
- Intraday commentary & news
- Ultra-actionable trading ideas
- 100+ monthly options trading ideas
- Actionable options commentary & news
- Real-time trading community
- Options TV