Shares of FitBit floundered after the bell, despite reporting better-than-expected quarterly earnings. The wearable maker posted adjusted earnings per share of 35 cents, beating the 25 cents expected by Wall Street, according to a consensus estimate from Thomson Reuters.
But the heath and fitness brand said it expected first-quarter adjusted earnings per share between zero and 2 cents, far below the 23 cents per share predicted, according to StreetAccount.
Embattled pharmaceutical company Valeant's stock slid in extended trading after reports it would likely restate its earnings. The Wall Street Journal reported that the restatement would likely surround distributor Philidor, which had come under scrutiny as Congress probed high drug costs over the past few months.
BHP Billiton shares dipped after the bell after the international miner reported a multi-billion dollar loss during the first half of the year and trimmed its dividend for the first time since 1988. The decline comes as competitors like Glencore have also struggled to stay afloat as commodity prices tumble.
Casual dining chain Texas Roadhouse saw shares pop after reporting quarterly net income of 32 cents per share, higher than the 30 cents expected by Wall Street, according to the Associated Press. Same store sales grew 4.5 percent at company restaurants for the latest quarter, the restaurant said, marking a 24th consecutive quarter of positive comparable restaurant sales growth.
And shares of Tenet Healthcare dipped in light volume trade after the hospital company reported a fourth-quarter loss, after posting a profit in the year-earlier period, according to the AP.
— CNBC's Jacob Pramuk, the AP and Reuters contributed to this report.