A record 80% of Wall Street warns 'long semiconductors' is the most crowded AI trade in history, per the BofA June 2026 survey.

The SOX semiconductor index surged 55% in 2026, but Goldman Sachs data shows hedge funds are aggressively selling chip stocks amid AI valuation concerns.

Bank of America survey shows 80% of fund managers call semiconductors the most crowded trade as the chip index hits all-time highs and SMH gains 99% YTD.