Electronic Arts Inc. (Nasdaq: ERTS) shares climbed 15.2 percent to $17.99. Volume for the stock was 20.3 million shares, compared to an average of less than five million, after the video-game publisher late Tuesday announced a $600-million share-buyback plan and hiked its 2011 earnings outlook.
Sirius XM Radio Inc. (Nasdaq: SIRI) traded in 60.2 million shares, catching its daily average volume of 51.5 million. Prices for the stock leaped 5.2 percent to $1.72, as speculation as to who will buy SIRI from Citigroup.
Genworth Financial Inc. (NYSE: GNW) shares fell 10 percent to $12.54. Volume for the stock was 11.7 million shares, compared to daily average of 6.1 million, after the insurer reported a surprise fourth-quarter loss as its mortgage operation weighed on results.
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