Dow, S&P 500 and Nasdaq post worst month in 11 months — is the AI stock boom losing momentum? what investors need to know about the 2026 US stock market outlook

The US stock market volatility story just turned serious. The Dow Jones fell over 700 points this week. The S&P 500 and Nasdaq are now posting their worst month in 11 months. AI stocks led the collapse. Nvidia crashed despite beating earnings. Big Tech's billion-dollar data center bets are spooking investors. Energy stocks surged 23%. The equal-weight S&P 500 beats the standard index by 6 points this year. Smart money is rotating — fast. Diversify now.