[kyrieeschaton]

Simultaenous with pausing buys of GME they were allowing accounts and positions to be opened and margin trades to occur, so it cannot be that they simply needed to limit their capital requirement full stop. The capital requirement is a prerequisite for being in the business and this is not an unforeseen circumstance, it's why they have lines of credit (which in fact they did draw on, just not enough to support the business they purport to be in) on top of their working capital.