The drama surrounding GameStop Corp. and other high-flying stocks targeted by social media-influenced traders has triggered a debate about behavior in markets and what regulators should do about it.Larry Tabb, the head of market-structure research at Bloomberg Intelligence, discusses this issue as well as the role clearing firms played in causing Robinhood and other brokerages to restrict trading in certain stocks.Mentioned in this podcast:In 11 Hours of Pure Mania, 100% Stock Gains Popped Up EverywhereHow a Penny Stock Explodes From Obscurity to 451% Gains Via Chat ForumsReddit Jolts Activist-Short Hedge Funds Into ‘Adapt or Die’ ModeWallStreetBets Briefly Goes Dark After Fueling GameStop’s SurgeBattle Between Hedge Funds and Day Traders Creates Record VolumeSee omnystudio.com/listener for privacy information.

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