Take a look at some of Wednesday's after-hours buzz:
HanesBrands spiked more than 12 percent in extended-hours trade after raising its full-year earnings per share guidance to above forecasts. The firm reported third-quarter earnings 5 cents a share above estimates, on revenue of $1.59 billion that beat expectations.
GoPro plunged 16 percent in after-hours trade after its third-quarter earnings report missed estimates by 4 cents a share and revenue that fell short of expectations by $34 million.
PayPal fell about 5 percent in after-hours trade, reversing an initial gain, after reporting earnings that beat expectations by 2 cents a share, but revenue missed slightly. The company gave 2015 earnings guidance in line with estimates.
Yelp gained more than 1 percent in extended-hours trade after posting revenue that topped estimates slightly, and issued guidance for the fourth quarter and full year roughly in line with estimates. The firm did report a greater-than-expected loss in earnings per share.
Buffalo Wild Wings tumbled more than 13 percent in extended-hours trade after reporting earnings and revenue that significantly missed estimates. Guidance also was shy of expectations.
Vertex Pharmaceuticals gained about 6 percent in after-hours trade after reporting a far smaller-than-expected loss in earnings per share on revenue that topped estimates.
Amgen rose about 1 percent in extended-hours trade after reporting third-quarter earnings that topped estimates on both the top and bottom line. The firm also said it will boost its dividend to $1 a share.
Whiting Petroleum fell more than 4.5 percent in extended-hours trade after reporting a quarterly loss due to the decline in oil prices and the write-down of its acquisition of Kodiak Oil & Gas.
Cirrus Logic gained about 2 percent in after-hours trade after giving third-quarter guidance and second-quarter results that beat expectations, according to StreetAccount. The board also authorized an additional $200 million stock repurchase plan.
SunPower rose more than 6 percent in extended-hours trade after raising full-year guidance. However, the second-largest U.S. solar panel maker did report a quarterly loss as revenue from its power plant business fell 68 percent from the same period last year.
F5 Networks plunged more than 8.5 percent in extended-hours trade after giving first-quarter guidance below consensus. Management noted seasonality and some uncertainty about the macro environment, StreetAccount said.