Nvidia Stock Plunges 8.6%, Losing $78 Billion Before Earnings
- Nvidia's stock price plunged 8.6% on Tuesday, its worst day since October 2023
- The stock drop erased $78 billion from Nvidia's market cap
- Nvidia fell from 3rd most valuable US company to behind Amazon and Alphabet again
- The stock slide comes day before Nvidia's quarterly earnings report on Wednesday
- Nvidia stock remains up 40% in 2023, but Tuesday drop signals investor concerns about potential bubble
