https://www.reuters.com/article/us-retail-trading-facebook/facebook-shuts-popular-stock-trading-group-amid-gamestop-frenzy-idUSKBN29X34P >Facebook Inc took down a popular Wall Street discussion group, Robinhood Stock Traders, in a move that its founder on Thursday described as backlash for conversations buoying shares of GameStop Corp and other companies this week.