KEY POINTS
  • Deere reported a better-than-expected quarterly profit, helped by a lower effective tax rate.
  • The company also raised its full-year sales and profit forecasts for the third time.
  • But sales were lower than expected for the second straight quarter.
A man works on a customer's John Deere lawn tractor at the Buck Bros. dealership in Hampshire, Illinois.

Deere reported a second straight quarter of lower- than-expected sales on Friday as demand remained sluggish for its trademark green tractors and harvesting combines, sending the company's shares down 7 percent in premarket trading.

Expectations were high for the company heading into the quarter, analysts said, as it has surprised Wall Street in the past few quarters with its ability to control costs amid weak demand.