Key Takeaways
- • Global stock-picking hedge funds lost 2.9% in the week through Oct. 15, according to a Goldman Sachs prime brokerage note cited by Reuters, but remained up 14.3% for 2026.
- • Asia-focused stock pickers shed 6.8% in the first half of October, giving back more than half of their gains from a late-June peak, as semiconductor-heavy markets sold off.
- • South Korea's KOSPI fell 8% on Thursday to a six-month low, and Taiwan stocks lost more than 3%.
- • Goldman linked the retreat to hotter-than-expected U.S. inflation data, which raised expectations for further rate hikes, and to doubts over whether AI infrastructure spending will generate returns quickly enough.
- • BlackRock's research arm lowered its U.S. stock outlook to neutral, and the IMF warned an AI market correction could have global consequences.
Summary
Global stock-picking hedge funds lost 2.9% through Oct. 15 after a series of daily declines, according to a Goldman Sachs prime brokerage note cited by Reuters on Oct. 16. The losses hit fundamental long-short equity funds, which seek to profit from rising shares while betting against others. Despite the weekly slide, the group remained up 14.3% for the year.
The pressure was concentrated in Asia and in semiconductor-heavy names. Asia-focused stock pickers fell 6.8% in the first half of October, erasing more than half of their gains from a late-June peak. South Korea's KOSPI tumbled 8% on Thursday to a six-month low, and Taiwan stocks lost more than 3%. On Wednesday, global stock pickers lost 0.9%, Asia-focused managers fell 2.6%, technology funds declined 2.0%, and systematic long-short and multi-strategy funds each retreated about 1%.
Goldman attributed the wider retreat partly to hotter-than-expected U.S. inflation data, which increased expectations for further interest rate hikes. Investors also questioned whether heavy spending on AI infrastructure would generate returns quickly enough to justify its cost. The episode exposed a shared risk across strategies: managers who hedge their stock positions can still suffer when holdings tied to the same sector fall together. Goldman said all three major strategies lost more than 0.8% on Feb. 4, Jul. 28 and Oct. 15 this year, and that no comparable joint decline occurred from the pandemic through the end of 2025.
Outside the bank's data, Damien Boey, a portfolio strategist at Wilson Asset Management, told Reuters on Oct. 13 that volatile bond yields were affecting asset prices broadly and that AI spending could slow, though he did not forecast an industry-wide collapse. BlackRock's research arm lowered its outlook on U.S. stocks to neutral, citing possible volatility around AI infrastructure spending, and favored short-term Treasuries. The International Monetary Fund warned on Oct. 13 that an AI market correction could have global consequences.
The pressure was concentrated in Asia and in semiconductor-heavy names. Asia-focused stock pickers fell 6.8% in the first half of October, erasing more than half of their gains from a late-June peak. South Korea's KOSPI tumbled 8% on Thursday to a six-month low, and Taiwan stocks lost more than 3%. On Wednesday, global stock pickers lost 0.9%, Asia-focused managers fell 2.6%, technology funds declined 2.0%, and systematic long-short and multi-strategy funds each retreated about 1%.
Goldman attributed the wider retreat partly to hotter-than-expected U.S. inflation data, which increased expectations for further interest rate hikes. Investors also questioned whether heavy spending on AI infrastructure would generate returns quickly enough to justify its cost. The episode exposed a shared risk across strategies: managers who hedge their stock positions can still suffer when holdings tied to the same sector fall together. Goldman said all three major strategies lost more than 0.8% on Feb. 4, Jul. 28 and Oct. 15 this year, and that no comparable joint decline occurred from the pandemic through the end of 2025.
Outside the bank's data, Damien Boey, a portfolio strategist at Wilson Asset Management, told Reuters on Oct. 13 that volatile bond yields were affecting asset prices broadly and that AI spending could slow, though he did not forecast an industry-wide collapse. BlackRock's research arm lowered its outlook on U.S. stocks to neutral, citing possible volatility around AI infrastructure spending, and favored short-term Treasuries. The International Monetary Fund warned on Oct. 13 that an AI market correction could have global consequences.
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