Shares of MicroStrategy Inc. ($MSTR) attracted significant attention among investors on Stocktwits Thursday, becoming the platform’s top trending symbol after short-seller Citron Research revealed it had taken a short position on the stock.

MicroStrategy (NASDAQ:MSTR) slumped 16.2% to $397.28/share on Thursday, reversing earlier gains that saw shares rise nearly 15%, after activist short seller Andrew Left's Citron Research bet against the "overheated" stock.

Citron Research has taken a short position in MicroStrategy , the company said in a post on social media platform X on Thursday.