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 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.