20 stocks in the S&P 500 that plunged the most in 2026’s first half

These companies were hit hard as investors worried about eventual losses of market share to AI tools.

Source: [MarketWatch](https://www.marketwatch.com/story/20-stocks-in-the-s-p-500-that-plunged-the-most-in-2026s-first-half-ae11e114?mod=mw_rss_topstories)