Check out which companies are making headlines after the bell Wednesday:
JPMorgan Chase - The banking giant said it is being investigated by civil and criminal divisions of the U.S. Department of Justice over offerings of mortgage-backed securities. Shares were largely unchanged in extended-hours trading.
(Read more: Stocks log 3-daylosing streak amid Fed taper talks)
Green Mountain Coffee Roasters - The specialty coffee company posted earnings of 82 cents a share, excluding one-time items, topping Wall Street expectations by a nickel a share. Meanwhile, the company reported sales of $967 million, missing expectations for $981 million. Shares tumbled in extended-hours trading.
Groupon - The daily deals website posted earnings of 2 cents a share, in line with expectations, on revenue of $609 million, edging past estimates for $606 million. In addition, the company handed in current-quarter earnings guidance that missed Wall Street expectations, but revenue outlook that was in the higher end of projections. The company's board also appointed Eric Lefkofsky as the new CEO and Ted Leonsis as chairman of the board and authorized a $300 million share repurchase program. Shares soared in extended-hours trading.