updated 11/12/2010 2:49:09 PM ET 2010-11-12T19:49:09

Among the stock activity stories for Friday, Nov. 12, from The Associated Press:

— Shares in chip maker Microsemi Corp. rose sharply after the company said that it reversed a third-quarter loss, earning more than analysts had expected, and boosted revenue.

— Shares of graphics card maker Nvidia Corp. rose after the company posted solid third-quarter results and raised its revenue forecast for the following quarter, exceeding analysts' expectations.

— Shares of Finisar jumped as one analyst lifted the company's price target, citing strong demand in China.

Copyright 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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