In this article TSLA MSFT GOOGL AAPL AMZN NVDA META Follow your favorite stocksCREATE FREE ACCOUNT Traders work on the floor of the New York Stock Exchange during morning trading on July 31, 2024. Michael M. Santiago | Getty Images As U.S. markets opened for trading on Monday, tech’s mega-cap companies lost about $1 trillion in market cap, deepening a downturn that...