Crowded AI Trades Trigger Losses for Hedge Funds as Volatility Hits Market Leaders
Several hedge funds have recorded their weakest trading performance in nearly a year due to heavily crowded artificial intelligence and technology trades amid heightened market volatility. Systematic hedge funds, or quant funds, have surrendered roughly one-quarter of their year-to-date gains, with returns falling to 10.8% from 14.4% earlier in 2026. The decline stems from bearish positions against U.S. equities, developed Asian markets, and European stocks. Sharp swings in semiconductor stocks during late June and early July, amplified by elevated leverage among South Korean investors, created a challenging environment. Fundamental hedge funds declined 2.2% and have aggressively exited AI-related positions, pushing hedge fund leverage to its lowest level in the past year. Financial regulators including the Bank of England, Bank of Japan, and Bank for International Settlements have warned that elevated valuations and hedge fund activity could increase systemic risk.
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