KEY POINTS
  • A stronger-than-expected first-quarter earnings beat and an updated full-year outlook sent Shake Shack shares soaring.
  • Shake Shack expects same-store sales to be flat to up 1 percent for the full year, due to a 1.5 to 2 percent menu price hike it made in December.
  • The burger company also increased its full year revenue forecast.
Burgers and French fries from Shake Shack

A stronger-than-expected first-quarter earnings beat and an updated full-year outlook sent Shake Shack shares soaring on Friday.

The results help ease fears that the company's aggressive expansion plans would hurt sales at its existing stores. The company expects to add 32 to 35 U.S. company-owned stores this year.