Dodd-Frank and rules around trade settlement - in particular brokers have to post collateral based on complicated calculation to the clearance firm (DTCC) until

Dodd-Frank and rules around trade settlement - in particular brokers have to post collateral based on complicated calculation to the clearance firm (DTCC) until the trade clears (usually T+2). Unfortunately it looks like DTCC increased that percentage to 100% for a few names (like GME) - https://twitter.com/KralcTrebor/status/1355172567242469377 https://twitter.com/KralcTrebor/status/1355172567242469377