Billions in Secretive Derivatives at Center of Hedge Fund Blowup So its not all about shorting cash equities. Equities can be shorted in other ways (swaps and CFDs (which I thought was illegal in the US).https://www.bloomberg.com/news/articles/2021-03-29/billions-in-secretive-derivatives-at-center-of-archegos-blowup?srnd=premium&sref=d1HExRZd …
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I cannot wait to read about how these "secret derivatives" were "cooked up by financial wizards" using "arcane mathematical formulae"
"Covert financial instruments" 
