Tech winners/losers story updated with closing prices.NEW YORK ( TheStreet) -- The tech-heavy Nasdaq rose 20 points to 2,766 Tuesday, boosted by a drop in oil prices and encouraging comments from Bank of America's ( BAC)CEO. Google ( GOOG) increased as well, going up 0.11% to close at $592.31, after a new Comscore study showed that its Android operating system captured the largest market share among U.S. smartphone owners. Android's market share jumped 7 percentage points to 31.2% between October and January, placing the mobile software ahead of Apple's ( AAPL) iOS operating system and Research In Motion's ( RIMM). Callidus Software ( CALD), which sells sales performance management software, soared 10.32% to close at $6.84, hitting a new 52-week high. The company announced Monday it had closed its acquisition of ForceLogix for $3.75 million in cash. Video game giant Activision ( ATVI) increased 1.83% to $11.11, after announcing that its Call of Duty: Black Ops game has become the best-selling title of all time for Sony's ( SNE) PlayStation 3. Black Ops has been smashing video game records since its launch in November, when it sold 5.6 million copies on the first day of its release. Netflix ( NFLX) fell almost 6% to close at $195.45, after Facebook announced that it is testing a video streaming service . The first installment of the trial is 2008's The Dark Knight, which users will have access to for 48 hours. Coinstar ( CSTR) also declined on the Facebook news, dropping 5.3% to $42.18. The company's Redbox division said last month that it is also looking to get into the video streaming business . --Written by Olivia Oran in New York. >To follow the writer on Twitter, go to http://twitter.com/Ozoran. >To submit a news tip, send an email to: email@example.com.