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AI Hedge Funds Plunge as Deleveraging Hits Third Time in Ten Months
Hedge funds suffer rare simultaneous plunge for third time in ten months as AI financing concerns trigger deleveraging.
In brief
Hedge funds suffer rare simultaneous plunge for third time in ten months as AI financing concerns trigger deleveraging. Hedge funds reversed all cumulative AI net buying since 2025 within five trading days after a -3.7 standard deviation crash. Originally reported by BigGo Finance.
AI Financing Concerns Trigger Deleveraging

Hedge funds experienced third synchronized multi-strategy crash in ten months, with quantitative funds suffering a -3.7 standard deviation blow.
Asian Hedge Funds Bear Brunt
Asian hedge funds saw monthly losses widen to -6.8%, with South Korean and Taiwanese AI positions bearing the most damage.
Goldman Sachs Data Shows Reversal
Goldman Sachs Prime data shows hedge funds completely reversed all cumulative AI net buying since 2025 within five trading days.
Taiwan Foreign Outflow Hits $9.3 Billion

Taiwan recorded a historic single-day foreign outflow of approximately $9.3 billion, a record level for the country.
VaR Models Underestimate Extreme Risk
Goldman Sachs analysts warn current VaR models systematically underestimate extreme risk, with overall leverage at 310%.
Taiwan Positioning at 99th Percentile
Taiwan positioning remains at the 99th percentile of its five-year range, suggesting deleveraging pressure may only be beginning.
Momentum Factor Collapses
Momentum factor down 3.4 standard deviations, Crowded Longs down 1.8 standard deviations, and Crowded Shorts squeezed higher by 1.2 standard deviations.
Quantitative Funds Turned Negative
Quantitative funds suffered a -3.7 standard deviation blow, the worst single-day loss since August 19, after posting gains the previous day.
South Korea's AI Positioning Unwound
South Korea's net positioning allocation fell 75 basis points this month to 3.64%, sitting at the 32nd percentile of the past year.
Taiwan's Positioning Remains High
Taiwan's positioning remains near historical highs at the 94th percentile of the past year and 99th percentile of the five-year range.
AI Stock Net Selling Accelerates
Hedge funds net sold global AI stocks for five consecutive trading days from October 8 to 14, reversing all cumulative net buying since 2025.
KOSPI Enters Bear Market
KOSPI fell into bear market territory, triggering circuit breakers and a single-day foreign outflow of $9.3 billion.
Credit Spreads Widening
SoftBank Group's 5-year credit default swap spread widened to 424 basis points, a single-day widening of 24 basis points.
AI Portfolio Long/Short Ratio Declines
AI portfolio long/short ratio declined from the June peak of 4.34 to 3.27, at the 7th percentile over the past year.
Deleveraging May Only Begin
Goldman Sachs analysts warn that current VaR models systematically underestimate extreme risk, suggesting deleveraging pressure may only be beginning.
Here's the gist
Hedge funds reversed all cumulative AI net buying since 2025 within five trading days after a -3.7 standard deviation crash.





