DTCC [1] is increasing collateral requirements for these shares. Last week they raised them by over $9 billion, which is why Robinhood stopped the trading. So t

DTCC [1] is increasing collateral requirements for these shares. Last week they raised them by over $9 billion, which is why Robinhood stopped the trading. So the question is...who at DTCC made the decision to raise the collateral requirements, and why? Was it discretionary, or was there a long-standing policy spelling out exactly when they raise collateral requirements? If I were a hedge manager having my career destroyed in a matter of minutes by a bunch of amateurs, I'd pressure someone with the power to cause the halt of trading across the market - not just a single brokerage. So while it is not a smoking gun of any wrongdoing, if wrongdoing has occurred, it occurred between a hedge fund and DTCC. [1] https://www.dtcc.com/ https://www.dtcc.com/