Check out which companies are making headlines after the bell Wednesday:
American Express - The credit card provider reported earnings of $1.15 a share on sales of $7.88 billion. Analysts expected the company to post earnings of $1.12 a share on revenue of $8.03 billion. Shares declined in extended-hours trading.
(Read More: Stocks End Down 1%, Led by Techs; Apple Sags 5%)
Ebay - The online auction website posted earnings of 63 cents a share, excluding one-time items, on sales of $3.75 billion against expectations for 62 cents a share on revenue of $3.77 billion. Meanwhile, outlook fell short of expectations, sending shares lower in extended-hours trading.
Sandisk - The computer storage software and solutions company posted earnings of 84 cents a share, excluding one-time items, on revenue of $1.34 billion, topping expectations for 79 cents a share on sales of $1.31 billion. Still, shares fell in extended-hours trading.
Select Comfort - The mattress manufacturer reported earnings of 41 cents a share, excluding one-time items, on revenue of $258 million missing expectations for 43 cents a share on sales of $288 million. In addition, the company lowered its full-year guidance, sending shares sharply lower in extended-hours trading. Rival Tempur-Pedic also traded lower following the report.
Sallie Mae - The student loan service company posted earnings of 61 cents, matching Wall Street expectations. Meanwhile, the company handed in full-year earnings that exceeded forecasts, sending shares higher in extended-hours trading.
Intel - The chipmaker is acquiring Mashery, an application programming interface (API) technology and interface provider, according to a report from AllThingsD. Financial terms of the deal were not disclosed.
Google - Evercore Partners resumed coverage of the search-engine giant with an "overweight" rating and a price target of $950.
Lufkin Industries - Gamco disclosed a 6.8 percent stake in the energy company in a 13D filing, sending shares higher in extended-hours trading.