Check out which companies are making headlines before the bell:
BlackBerry–The handset maker missed estimates on both the top and bottom lines, but its tech and software licensing revenue jumped from a year earlier and its adjusted profit margins were also above expectations.
Darden Restaurants–The Olive Garden parent reported adjusted quarterly profit of $1.08 per share, 15 cents above estimates, with revenue also beating. Darden also said it would pursue a spin-off of its real estate assets into a REIT, followed by a leaseback of the properties involved.
AT&T–The stock was upgraded to "overweight" from "neutral" at Barclays, which cited the potential positive effects of AT&T's purchase of DirecTV.
Molson Coors–The beer brewer's stock was downgraded to "neutral" from "buy" at Nomura, which said the U.S. beer market is weakening and that the potential for a buyout of the company's MillerCoors unit is dropping.
Sonic–The restaurant chain reported adjusted quarterly profit of 36 cents per share, matching estimates. Revenue slightly beat forecasts, but Sonic's full-year outlook is below Street forecasts.
Syngenta–Syngenta has once again rejected Monsanto's $45 billion takeover bid, saying the offer undervalues the pesticide maker's business. Chairman Michel Demare said Monsanto has clearly endorsed its strategy and value with its bid, but that Monsanto is "trying to buy it on the cheap".
JetBlue–The airline is adding its premium class, known as "Mint," on transcontinental flights from Boston. The service will begin on flights between Boston and San Francisco next March, and to Los Angeles in the fall of 2016.
Oracle–Oracle founder Larry Ellison said the company would expand its cloud-based offerings to more directly compete with Amazon.com. Ellison promised to compete with Amazon on price and called the expansion a "really big deal."
Google–Google has an additional opponent to its European practices: Getty Images, which has complained to the EU about Google's image-search service favoring its own over rivals like Getty.
Alibaba–The China-based online merchant is selling U.S. subsidiary 11 Main to online marketplace OpenSky. Terms were not disclosed.
Facebook–Facebook has knocked Wal-Mart out of the top 10 in market capitalization following Monday's trading. According to S&P, Wal-Mart hasn't ended a year outside the top 10 biggest companies by market cap since 1997.
Fitbit–Fitbit's positive momentum continues, moving higher in pre-market trading after rising in its first three sessions as a public company.