Today was an ugly day if you own nothing but AI companies, says Jim Cramer

Market Performance - The Dow Jones Industrial Average dipped by 246 points, the S&P 500 plunged by 1.07%, and the NASDAQ, heavily populated with AI stocks, fell by 1.69% [2] - There is a significant rotation from high-performing AI stocks to more traditional sectors like food and pharmaceuticals, indicating a shift in investor sentiment [2] AI Sector Analysis - The AI data center stocks are experiencing a notable decline, with Polcom stock collapsing despite a decent quarterly performance that was poorly received [2] - The current market environment is causing some investors to exit their positions in AI stocks due to the pain of losses, suggesting a potential short-term sell-off [3] Long-term Outlook - There is a belief in AI as a key component of the fourth industrial revolution, with expectations that many AI stocks will become attractive once their valuations decrease [4] - Nvidia is highlighted as a stock worth holding long-term rather than trading, reflecting confidence in its future performance despite current market volatility [4]