Did you know that Janet Yellen got over 800k from Robin Hood for speaking engagements. So Robin Hood shuts down buying of Game Stop. Totally illegal. The stock drops 50%, the hedge funds shorted it this morning and now have cut their losses significantly.
One of the brokerages said they stopped allowing stock purchases (but not sales) of GME contending it was a clearinghouse decision. That two day settlement period all of a sudden needed because they claim they could not fund the quantity.
If so, they should have continued to halt all trading. By in instead allowing only selling, they disrupted commerce to help short hedge funds.
(In reality trading should have been halted long ago when short shares exceeded outstanding shares.)