By Benjamin Pimentel, MarketWatch

Technology stocks were mostly higher Friday, propelled by gains in shares of Red Hat Inc., which rose sharply a day after posting upbeat results.

Red Hat (RHT) was rallying more than 16%, the top gainer on the S&P 500(SPX), which was up 1%.

Late Thursday, the open-source software maker reported better-than-expected profit and revenue. Raymond James analyst Michael Turtis upgraded the stock to outperform from market perform, citing an "extremely strong fiscal third quarter."

After a volatile start, BlackBerry (RIMM) shares were up 14% after the handset-maker reported a third-quarter loss, but also announced that a five-year contract with manufacturer Foxconn.

Shares of Twitter (TWTR) were also up more than 3%. Apple Inc.(AAPL) gained 1%, giving the Nasdaq Composite Index (RIXF) a lift. The benchmark was ahead 1.3%, and was on track to end the week with a 2.7% gain. Apple also was poised to post its first stock gain in four days.

Oracle (ORCL) was off 0.2%. The Redwood City, Calif.-based software giant announced Friday that it was buying marketing software company Responsys for $1.5 billion.

Gains also came from Google Inc.(GOOG), IBM Corp. (IBM) and Intel Corp. (INTC) On the downside, Facebook Inc. (FB) was off 0.4%, while Hewlett-Packard (HPQ) shed 0.2%.

Shares of Amazon.com (AMZN) topped $400 for the first time ever. The stock was last trading up 2.2%.

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