AMC

Wall Street’s top brokers are quietly tightening their rules for who can bet against retail traders’ most-popular meme stocks.Goldman Sachs Group Inc., Bank of America Corp., Citigroup Inc. and Jefferies Financial Group Inc. are among firms that have adjusted their risk controls

bloomberg.com/news/articles/2021-06-04/wall-street-banks-rein-in-hedge-funds-short-bets-on-meme-stocks