Check out the companies making headlines after the bell on Wednesday:
Facebook shares rose about 3 percent after the social media giant reported better-than-expected third-quarter results. The Menlo Park, California, company said the release of new advertisement offerings and updates to its mobile app helped to increase ad sales during the quarter.
Digital advertising firm Rocket Fuel saw its shares drop 7 percent after it named Randy Wootton, a former executive at Salesforce.com and Microsoft, as its new CEO. Wootton has served as Rocket Fuel's chief revenue officer since March.
Expedia shares rose about 4 percent after the online travel company announced plans to acquire HomeAway, which specializes in vacation rentals. Expedia, which owns the namesake website as well as Hotels.com, Hotwire and other brands, recently merged with rival Orbitz. HomeAway shares soared 22 percent after Wednesday's announcement.
FireEye shares slid 15 percent after the tech services provider reported a narrower-than-expected third-quarter loss but missed revenue estimates. What's more, the company said it expects current-quarter revenue of between $182 million and $190 million, well bellow Street forecasts of $201 million.