Could be it amc finished above 20 this week so shorts have to hedge those calls 75k of them so thats 7.2m shares need bought worth 140m.
As for gme around 30k calls in the money 3m shares, T+2 so Tuesday. Gme pretty much doubled this week 25% SI and 25 ctb.
SPY breaks 455 all these small caps could get a big lift. Everyone in general should see a lift in their portfolio.