Check out which companies are making headlines before the bell:
Time Warner—The company earned an adjusted 97 cents per share for the third quarter, 3 cents above estimates. Revenue was also above forecasts on strong subscription growth for Turner Broadcasting and HBO, among other factors.
Covidien—The surgical products maker, which is in the process of being acquired by rival Medtronic, earned an adjusted $1.15 per share for its fourth quarter, 13 cents above estimates, with revenue also above consensus. The Ireland-based company saw its results boosted by stronger product sales.
Nu Skin Enterprises—The maker of skin care and nutrition products reported quarterly profit of $1.12 per share, 20 cents above estimates, with revenue also above expectations. However, Nu Skin's current quarter profit is projected to come in well below Street estimates, hurt by the strength of the U.S. dollar.
Activision Blizzard—The video game maker reporting adjusted quarterly profit of 23 cents per share, 10 cents above estimates. Revenue beat forecasts as well, and the company raised its full-year outlook on upbeat business for its "Destiny" and "World of Warcraft" games.
21st Century Fox—The media company beat estimates by 3 cents with adjusted quarterly profit of 39 cents per share, with revenue well above Street forecasts. Fox was helped by strength in its film and cable businesses.
FireEye—The cybersecurity company reported a smaller-than-expected loss of 51 cents per share for its latest quarter, although revenue came in below estimates. FireEye's sales were impacted by a customer shift to subscription-based products.
Zulily—The online retailer earned an adjusted 2 cents per share for its latest quarter, compared to Street forecasts for a three cent per share loss. Revenue was slightly above analyst forecasts for Zulily, but its current quarter sales projections are well below estimates.
Potbelly—The restaurant chain beat estimates by 2 cents with adjusted quarterly profit of 9 cents per share, while revenue was above forecasts. Potbelly also said same-store sales rose in each month of the quarter. However, it also said full-year comparable store sales would be flat to negative.
TripAdvisor—The travel review website fell 12 cents short of estimates with adjusted quarterly profit of 48 cents per share, though revenue did beat analyst projections. TripAdvisor was hurt by a more than 60-percent jump in marketing expenses.
Toyota Motor—The automaker raised its full year profit forecast by 9.1 percent, driven by the declining value of the yen.
General Electric—The company's deal to buy the power business of France's Alstom won approval from the French government.