10 Stocks Lost Over 40% in 2026 as Investors Dumped Everything AI Might Kill

The article says the S&P 500 is up 8.28% in 2026, but a narrow group of stocks tied to software, consulting and advertising has been hit hard as investors favor AI winners and dump names they believe AI could disrupt. Intuit, Accenture, Cognizant, Gartner, The Trade Desk and AppLovin were among the biggest losers, with some down more than 45%. The piece argues that the selloff reflects fear of AI substitution and weaker growth outlooks, while a few losers such as CoStar and Boston Scientific fell for company-specific reasons rather than AI. Meanwhile, capital has rotated into chip and memory stocks, reinforcing the AI capex trade and widening market concentration. The broader message is that AI enthusiasm is lifting the index overall, but any company perceived as vulnerable to AI is being aggressively repriced lower.