Check out the companies making headlines after the bell Wednesday:
Social networking firm Facebook beat on the top and bottom lines, but the company's costs and expenses increased 57 percent from a year ago on an adjusted basis. Shares fell in after-hours trading, before turning positive.
Specialty grocer Whole Foods Market reported third-quarter earnings and revenue that missed Wall Street's expectations as growth at the company slowed drastically. The stock tumbled about 10 percent following the news.
Skechers surged as much as 14 percent after the footwear maker soared past analysts' revenue and profit projections. The company reported second-quarter adjusted earnings of $1.55 a share on $800 million in revenue, beating estimates for $1.01 a share on $736 million in sales.
Anti-identity theft provider LifeLock saw its shares drop more than 8 percent after the company issued weak current-quarter and full-year sales guidance. The company reported second-quarter adjusted earnings of 10 cents a share, topping estimates by a penny, on $145 million in revenue, which was also slightly above expectations.
Biotech provider Vertex Pharmaceuticals posted a narrower-than-expected adjusted loss of 54 cents a share, on $166 million in sales for the second quarter, compared with estimates of a loss of 58 cents a share on $150 million in revenue. Shares rose about 2 percent after the news.
AMC Entertainment's shares declined about 1 percent in extended trading after the movie theater operator earnings of 45 cents a share on $821.1 million in sales, up from 32 cents a share on $726.6 million in revenue a year ago.
Information technology provider Leidos increased about a percent before turning lower after Netgov said it won a multibillion dollar health records contract with the Department of Defense. Citing two unnamed sources, Netgov said a formal announcement would be made later on Wednesday.
Western Digital, which makes hard disk drives among other products, beat earnings estimates, but revenue trailed. The stock rose about 5 percent after hours.