Shares in United Continental stock fell more than a percent Tuesday amid an uproar over a bloodied passenger seen on video being dragged off an at-capacity flight in Chicago.
Earlier Tuesday, the shares were among the worst performers in the S&P 500.
CNBC reported that stock had climbed Monday despite widespread outrage on the internet over the video, which prompted an apology from CEO Oscar Munoz for having to "re-accomodate customers."
Munoz issued a second apology in a statement Tuesday, saying that a "thorough review" of the situation and their policies will take place, the results of which will be shared by Apr. 30.