Here are today's top news headlines from Check back throughout the day as this list is updated, and follow us on Twitter at TMFBreaking.

Stock Market Today: Sony's PC Exit and Costco's Hot January

AstraZeneca PLC, Gilead Sciences and Galena Biopharma Could Be Today's Biggest Movers in Healthcare

New Gold, Finished the Year Strong

Patent Exclusivity Losses Push AstraZeneca's Q4 Profit Down 28%

Exelon Corporation’s Earnings Impacted by Low Energy Prices

Advance Auto Parts Q4 Profit Falls on Acquisitions

Japan Looks at Dozens of New Geothermal Power Plants

Former Chesapeake CEO McClendon Stages Comeback

TASER International, Inc. Reports New Stun Gun Sales

Philip Morris International Q4 Profit Falls 5% as Cigarette Sales Drop

Americans Working More for Better Pay

Teva Pharmaceutical's Profit Jumps 8% on Strong Copaxone Sales

U.S. Trade Deficit Worsens 11.8% for December

Weekly Jobless Claims Drop 5.7%

Why Spirit AeroSystems Holdings, Inc. Slumped

General Motors Company Stock: Why Wall Street Isn't Happy With Q4 Earnings

Weak Housing Market Leads to Week of Lower Mortgage Rates

This Key Fracking Ingredient Continues to Deliver for Hi-Crush Partners LP

Disney Heats Up the Dow Behind a Star-Studded First Quarter Performance

Oil Gains; AAA Says Prepare for Higher Pump Prices

Activision Blizzard, Inc. Shares Jump 10% on Strong Holiday Results

Why USG Corporation's Shares Popped Today