Check out which companies are making headlines before the bell:
Kohl's — The retailer reported adjusted quarterly profit of 80 cents per share, 10 cents a share above forecasts. Revenue was very slightly above estimates. Same-store sales did fall by 1.7 percent, but that drop was in line with analysts' projections.
MetLife — The insurance company announced a new $3 billion share repurchase program, marking a return to buybacks after a suspension earlier this year.
ConocoPhillips — The energy giant unveiled a new $3 billion share repurchase program as well as saying it would initiate a $5 billion to $8 billion asset divestiture program.
Party City — The party supplies retailer fell four cents a share short of estimates, with quarterly earnings of eight cents per share. Revenue was also short of expectations. The company said it was impacted by a soft Halloween season, as well as a "more distracted consumer," but is generally pleased with its overall outlook.
Best Buy — The electronics retailer will open at 5 p.m. local time on Thanksgiving Day, and will make some of its Black Friday deals available in stores and online today.
Shake Shack — The restaurant chain reported quarterly profit of 15 cents per share, one cent a share above estimates. Revenue also beat forecasts. Shake Shack saw comparable-store sales rise a stronger-than-expected 2.9 percent for the quarter, and it raised its full-year guidance.
Twitter — Chief Operating Officer Adam Bain is leaving the company to explore other opportunities. He'll be replaced by Chief Financial Officer Anthony Noto, and the company will initiate a search for a new CFO.
Mylan — Mylan earned an adjusted $1.38 per share for its latest quarter, seven cents a share shy of estimates. The drugmaker's revenue missed the mark, as well, hurt by the controversy over pricing of its EpiPen product.
Taser International — Taser came in a penny a share above estimates, with quarterly profit of seven cents per share. The maker of law enforcement equipment also saw revenue beat Street forecasts as sales of body cameras surged. Separately, Taser announced the departure of Chief Financial Officer Dan Behrendt to pursue other opportunities.
Alexion Pharmaceuticals — Alexion will delay filing its quarterly report as it investigates allegations of improper sales practices by a former employee.
Perrigo — The maker of store-branded generic drugs plans to review options for the rights to royalties from multiple sclerosis drug Tysabri. Activist investor and stakeholder Starboard Value has been pressuring the drug maker to execute moves that will help its stock price.
AstraZeneca — AstraZeneca reported falling revenue, but rising earnings, as it counters competition for its cholesterol drug Crestor with cost cutting, growth in new products, and asset sales.
Yahoo — Yahoo is investigating a possible hacking, looking into whether an unidentified hacker can access its user account data. Yahoo disclosed the probe in an SEC filing. The news follows the revelation of the 2014 hacking that exposed more than 500 million user accounts.
Pfizer — Pfizer is considering a possible sale of spin-off of its consumer health division, according to Reuters. The unit could be worth as much as $14 billion.