Mark Spitznagel

Mark Spitznagel is an American hedge fund manager, derivatives and commodities trader, author, and sustainable farmer. Spitznagel is known for his pioneering tailhedging and frequently bearish Austrianbased stock and commodities trading, his hugely profitable billion dollar derivatives bet on the stock market crash of 2008, and for having allegedly caused the stock market crash of 2010.

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Source: Wikipedia