[fractionalhare]

This is extremely unlikely. I'm saying they wouldn't have survived to see $300. You think they managed to live long enough to short at the top tick without being margin called and having their prime broker pull the plug on them?

The doubt around this situation is uncritical. This is a firm motivated by money. If you're seriously interested in making money, you don't lie to the public about closing your positions (boom, securities fraud) and stay in it when the volatility of the thing has destroyed your thesis (boom, breaking fiduciary duty). You get out to trade another day.