The banks shorted their positions hoping to crash the market, but also to repurchase those positions at a lower price.
Team Trump bought those shares, and in doing so, pushed the price up.
The banks CANNOT recover these positions, they use credit notes as cash, and if all the banks are in the same boat, then none of them can offer credit to cover another.
So, they are now cashless, shareless and about to go bankrupt.
Whats more is the fact that they sold their customers shares, not just their own, and now their clients positions have evaporated.
This is a grand fraud, the ones who survive the rope will die in Gitmo.