Key TakeawaysNvidia shed more than $279 billion in market value Tuesday in the largest single-day drop in U.S. history.Tuesday was the fifth day this year in which Nvidia has lost more than$200 billion in market cap; it is the only U.S. company to fall that much on more than one occasion.Nvidia's market cap loss Tuesday was roughly equal to the company's market value on October 14, 2022, shortly before its stock took off on the AI investment boom. Nvidia (NVDA) shares tumbled 9.5% on Tuesday, their biggest ...