International hedge funds have recorded significant portfolio losses following a rapid unwinding of investments linked to artificial intelligence. According to data from Goldman Sachs cited by Reuters, market participants rushed to exit these positions as concerns grew regarding inflation and the trajectory of borrowing costs.
Stock pickers focusing on Asian markets experienced the most severe impact, dropping 6.8 percent during the early part of October. This decline erased more than half of the gains these funds had accumulated since reaching a peak in late June, a period when they had been up more than 40 percent for the year.
Global fundamental long-short funds also sustained damage, falling 2.9 percent through October 15. These funds, which generate returns by taking long and short positions in equities, experienced negative returns on every single trading day during that specific week.
Selling pressure intensified markedly on Wednesday, October 15. On that day alone, global fundamental long-short portfolios dropped 0.9 percent, technology-focused funds retreated 2 percent, and Asia-focused stock pickers fell 2.6 percent, while systematic long-short and multi-strategy funds each declined by approximately 1 percent.
The broader market downturn was triggered by hotter-than-expected inflation data from the United States, which fueled market expectations for additional interest rate hikes. This monetary policy outlook weighed heavily on semiconductor manufacturers and entities tied directly to artificial intelligence infrastructure supply chains.
The volatility observed recently has crossed historical thresholds for unusual market behavior. Goldman Sachs noted that three broad hedge fund strategies experienced simultaneous daily losses exceeding 80 basis points on February 4, July 28, and October 15, an occurrence not recorded between the Covid-19 pandemic and the end of 2025.
Geographic regions heavily exposed to chipmakers felt the reversal acutely, with South Korea's KOSPI benchmark dropping nearly 8 percent on Thursday, October 15, to reach a six-month low, while Taiwanese equities declined by more than 3 percent amid growing questions over technology valuations and the pace of artificial intelligence returns.
Key numbers
- Asia-focused fund losses in early October: 6.8%
- Global fundamental long-short fund losses through October 15: 2.9%
- Global fundamental long-short fund year-to-date returns: 14.3%
- Global fundamental long-short losses on October 15: 0.9%
- Asia-focused fund losses on October 15: 2.6%
What a board might note
- How might the 14.3% year-to-date return for global fundamental long-short funds as of October 15 influence risk appetite in upcoming portfolio reviews?
- What implications do the simultaneous daily strategy losses exceeding 80 basis points on February 4, July 28, and October 15 hold for internal liquidity stress testing?
- How should treasury teams factor the nearly 8% drop in South Korea's KOSPI benchmark on Thursday, October 15, into regional exposure assessments?
Source: Economic Times Markets, 16 October 2026. This is a summary of a news report, published as general information. It is not legal, tax or investment advice.
This article is journalism and commentary. It is not a recommendation to buy or sell any security, and it is not professional advice. Read the full disclaimer.
