A passenger boards an Avis shuttle bus at Los Angeles International Airport.

Avis Budget shares dropped on Wednesday after reporting a full-year revenue forecast below estimates.

Shares of the rental car company fell 15.2 percent at $32.86 per share after the company said it expects full-year revenue between $9.05 billion and $9.3 billion. Analysts were expecting revenue of $9.27 billion for the year, according to Thomson Reuters.