GameStop stock fell more than 7% in extended trading Wednesday even after the retailer posted a narrower loss than last year.
AMC, GameStop lead troubled companies in flooding the market.
GameStop, the video game retailer at the center of a social-media driven investment frenzy, says it lost $215 million in the 12 months ended Jan.
Short sales have actually dwindled during the past year to the lowest level since at least 2008.
Shares of GameStop Inc. set a new 52-week high on Wednesday on the heels of reporting triple-digit e-commerce sales growth during the nine-week period ending Jan. 2.