KEY POINTS
  • Oppenheimer downgraded Chipotle Mexican Grill and said Wall Street is too optimistic about the company's earnings trajectory.
  • Analyst Brian Bittner said the company's marketing efforts and new menu items won't be enough to meet earnings expectations through 2020.
  • "We respect management's marketing, digital and new product strategies, but don't view them as transformative enough," Bittner wrote.
A employee sprinkles cheese on a burrito at a Chipotle Mexican Grill restaurant in Hollywood, California.

Shares of Chipotle Mexican Grill slipped more than 2 percent in premarket trading Monday after Oppenheimer downgraded the stock and said Wall Street is too optimistic about the company's earnings trajectory.

The company's shares have already been upgraded nearly a dozen times and their price has soared nearly 80 percent since Brian Niccol was announced as Chipotle's new CEO in February. But Oppenheimer analyst Brian Bittner doesn't think marketing efforts and new menu items will be enough to meet earnings expectations through 2020.