TiVo ( TIVO) soared 24.8%, a day after the digital video recorders maker reported narrower-than-expected loss in the third quarter and guided in line with analysts' expectations for the current quarter. TiVo lost $8.2 million, or 8 cents a share, in the quarter compared with a loss of $11.1 million, or 12 cents a share a year ago. Analysts were expecting a loss of 13 cents a share. Revenue rose to $58.3 million, higher than Street expectations of $56.7 million.

TiVo also received an upgrade Thursday from JPMorgan, which now rates the stock overweight from underweight. TiVo also said Thursday it has won a decision in its favor from the U.S. Patent and Trademark Office in a dispute against EchoStar ( DISH). Shares of TiVo were up $1.48 to $7.46.

Also on the rise was Regeneron ( REGN), shares of which garnered $4.86, or 28.3%, to $21.80 on news that it strengthened its ties with Sanofi-Aventis ( SNY). Sanofi now holds a 19% stake in the company, up from a prior 4% stake. The team's new collaboration will use Regeneron technology to discover and develop fully humanized antibody drugs.

Chinese gaming company Shanda Interactive ( SNDA) gave up some of the gains from its third-quarter earnings report on Tuesday. Shanda had announced earnings of 44 cents a share on revenue of $87.4 million, compared to analysts' expectations of 43 cents a share on revenue of $82 million. The stock fell $2.11, or 5.4%, to $36.89 Thursday.

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