NEW YORK (TheStreet) -- Investors are finding optimism in Thursday's selloff, pushing indices higher in Friday's trading session. TheStreet's Ruben Ramirez details today's top headlines. 

FireEye (FEYE) is soaring, up over 30%, on reports that it will acquire Mandiant for $1 billion. The acquisition should help broaden the company's reach in defending companies and government enterprises from hackers, Ramirez said. 

Turning to the auto sector, monthly sales figures are due out Friday morning. According to Edmonds.com, auto sales as a whole should increase 5.2% for the month of December, he added. 

General Motors (GM) missed consensus expectations of a 1.5% gain, with a drop of 6.3%. Chrysler boosted sales by 5.7% and Ford (F) posted a gain of just 1.7%, with both results missing estimates. 

Finally, Ramirez reported that LivingSocial will sell 13.8 million shares of Groupon (GRPN), and plans to use to proceeds to stabilize its business. 

Groupon purchased LivingSocial's Ticket Monster in November for $260 million in cash and stock. Shares of GRPN are currently lower by roughly 1%.

-- Written by Bret Kenwell in Petoskey, Mich.

Bret Kenwell currently writes, blogs and also contributes to Robert Weinstein's Weekly Options Newsletter. Focuses on short-to-intermediate-term trading opportunities that can be exposed via options. He prefers to use debit trades on momentum setups and credit trades on support/resistance setups. He also focuses on building long-term wealth by searching for consistent, quality dividend paying companies and long-term growth companies. He considers himself the surfer, not the wave, in relation to the market and himself. He has no allegiance to either the bull side or the bear side.

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