But if INTC becomes the ire of r/wsb, you can throw any sort of historical covariance out the window. There is NO hedge for this.
I think we're seeing how that all comes unstuck on a grand scale right about now. The assumption doesn't hold at the times you really need it and boom!
Yes, big SD moves happen frequently enough that we have to revisit our normal distribution models. But GME isn't really the reason to do this.
Size of the market doesn't change the risk you carry of wrong assumptions. Have LTCM if you want another spectacular failure of risk management with wrong assumptions like these. There's plenty more when you're done with that one.
1) Longing AMD your maximum loss is the amount you've invested in AMD.
2) Add an Intel short your maximum loss on the Intel position is without limit. Intel can go for a massive run for unforseen reasons completely separated from AMD and others in the industry, which is stunningly obvious right now.
is (1) + (2) can be a load more risk than just going long one stock.