Early movers: CMG, DVN, GE, MTN, MFRM, PEP, GMCR & more

Traders work on the floor of the New York Stock Exchange.
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Traders work on the floor of the New York Stock Exchange.

Check out which companies are making headlines before the bell:

Chipotle Mexican Grill — Shares of the Mexican food chain plunged over 9 percent in the premarket after the company cut its full-year guidance. Both Cowen and Guggenheim also downgraded the stock citing a slowdown in same-store sales amid the recent E.coli outbreak.

Devon Energy — The oil producer said it will buy some assets from Felix Energy in the Anadarko Basin for $1.9 billion. As part of the deal with Felix, Devon will acquire 80,000 net surface acres in the Anadarko Basin, which spans over Oklahoma and Texas.

General Electric — The firm's deal to sell its appliance business to Swedish appliance maker Electrolux fell through, Reuters reported. The deal, which had been announced last year, would have been Electrolux's largest acquisition ever.

Vail Resorts — Vail Resorts posted better-than-expected fiscal first-quarter earnings. The company also reiterated its full-year guidance and said the sale of skiing season passes rose about 13 percent in units year over year and 19 percent in dollars.

Mattress Firm — The company reported better-than-expected fiscal third-quarter results, with same-store sales growing by 3.8 percent. CEO Steve Stagner said in the release the firm's adjusted earnings per share rose 17 percent year over year.

Pep Boys — Activist investor Carl Icahn reported a 12.12 percent stake in the auto services company.

Keurig Green Mountain —The personal beverage system company has agreed to be taken private by an investor group led by JAB Holding for $92 a share in cash.

— Reuters contributed to this report.