> The market for Nvidia stock is not made up of the same people who buy their graphics cards. Maybe even almost no crossover.

I think this is the problem you have investors buying stock in a company they have no concept what that company does they just know its a hot stock because the price is currently pumping. They go all in with no due diligence assuming the price will continue to pump for no reason and when it doesn't and the supply demand level out they act like they where scammed like the company should have told them when to buy and sell.