7 stocks are holding up the U.S. market. Here is why they may soon fall back to earth. By: MarketWatch October 18, 2023 at 10:04 AM EDT Something unusual is happening in the U.S. stock market, and it's making one prominent Wall Street economist nervous. Read More >> Related Stocks: Alphabet-A Alphabet-C Amazon.com Apple Interactive Brokers Meta Platforms Inc Microsoft NDX NVIDIA Corp Tesla, Inc.