Goldman Sachs' prime brokerage division sent a letter to clients early last week reporting that quantitative hedge funds experienced their worst 5-day period since December 2023, with total losses reaching 3.1% across tracked quant strategies and 1% lost on Monday alone. The losses stemmed primarily from short positions being squeezed as crowded trades and momentum strategies faced concentrated pain, according to the letter. The quant disruption occurred simultaneously across the United States, Asia, and Europe during a week when the Nasdaq Composite fell 4.6% and the Philadelphia Semiconductor Index dropped 7.94%, marking another instance of what market observers call 'quant tremors' affecting systematic long-short equity funds globally.
Goldman Sachs Reports Worst Quant Performance Since December 2023
Goldman Sachs' analysis measured the performance decline using Z-scores, which represent how many standard deviations a data point falls from the overall average. The Z-score for long-short strategy quant funds' asset fluctuations during this 5-day period marked the largest reading since December 2023. Goldman Sachs stated that "as with recent cases of asset declines, pain was concentrated in the portfolio's short positions" and noted that "highly crowded trades and momentum strategies were particularly hit."
Year-to-Date Returns Remain Positive Despite Recent Losses
Despite the 3.1% decline over 5 days, quant funds maintained a year-to-date return of 11.3% as of the date Goldman Sachs sent the letter. The Financial Times noted that "garbage stocks rallied strongly, appearing to hit quant short positions" and described the phenomenon as "an eerie echo of what we witnessed almost exactly this time last year."
Global Quant Tremor Affects Multiple Regions Simultaneously
The systematic long-short strategy funds experienced losses not only in the United States but simultaneously in Asia and Europe. The Financial Times stated this represented "additional evidence that small quant tremors are becoming increasingly common, as we argued last year" and noted the publication "judged it worth addressing in case this phenomenon mutates into something more violent that shakes the broader market."
2007 Quant Quake Provides Historical Precedent
The large-scale quant quake of August 2007 was triggered during the collapse of the US subprime mortgage market. Multi-strategy hedge funds facing margin calls due to mortgage defaults indiscriminately sold their most liquid quant stock portfolios to raise funds, triggering chain deleveraging among other funds following the same factor models and resulting in massive liquidations. CFM's CEO Philly Jordan stated in December last year that "it wasn't on the scale of the 2007 quant earthquake, but it was like rolling thunder throughout the year, affecting different people at different times in different ways."
June-July Period Last Year Recorded 4.2% Average Losses
According to Goldman Sachs, from June 1 to July 25 last year, systematic long-short equity quant funds experienced gradual performance declines. During this period, global equity quant funds recorded average losses of 4.2%. This phenomenon was shocking because the S&P 500 index rose approximately 8% during the same period and volatility indicators remained very stable. MSCI USA's analysis showed that high-beta and liquidity factors led market gains while momentum and high-profitability factors were extremely weak. "Garbage stocks" with very high short interest surged, causing massive losses in the short books of quant funds positioned long in quality companies and short in distressed firms.
Alternative Data Usage Reaches 90% Among Institutional Investors
A Lowenstein Sandler alternative data report published last year showed that global institutional investors' alternative data usage rate jumped from 62% in 2023 to 90% last year. Nearly all funds purchase and use the same alternative data—including weather patterns, credit card usage, satellite imagery, and app download trends—from large vendors. Alec Bishmit, CEO of software development company BN Digital, stated that "as a result, machine learning algorithms designed with identical data sets as inputs have essentially converged toward highly similar trading patterns of momentum, mean reversion, and statistical arbitrage."
Quant Fund Leverage Reaches 645.3% Average
According to JP Morgan's survey, as of November last year, the average total leverage of global hedge funds stood at 297.9%. Among these, quant funds' average total leverage reached 645.3%, significantly exceeding the 444.3% average for multi-strategy funds. Morgan Stanley analyzed this as a record borrowing level observed only during extreme periods in the top 1% over the past 15 years. The Financial Times noted that "whether the unique and brief quant tremors are simply random phenomena or signals that something massive is building beneath the surface remains unclear," while expressing concern that "hedge funds relying on sophisticated modeling and systematic trading are being shaken by successive small crises."
FAQ
What losses did quantitative hedge funds experience according to Goldman Sachs?
Goldman Sachs reported that quant hedge funds recorded their worst 5-day period since December 2023, with total losses of 3.1% across tracked quant strategies. The losses included a 1% decline on Monday alone, with pain concentrated in short positions as crowded trades and momentum strategies faced pressure.
Why are quant tremors becoming more frequent in financial markets?
The increasing frequency of quant tremors stems from strategy convergence as nearly all institutional investors now use the same alternative data from large vendors. Machine learning algorithms designed with identical data sets have converged toward highly similar trading patterns, creating extreme "strategic crowding" where hundreds of algorithms react instantly to the same trading micro-signals, causing synchronized liquidations even from minor shocks.
How high has leverage reached among quantitative hedge funds?
As of November last year, quant funds' average total leverage reached 645.3%, according to JP Morgan's survey. This significantly exceeds the 444.3% average for multi-strategy funds and represents a record borrowing level that Morgan Stanley noted has only been observed during extreme periods in the top 1% over the past 15 years.
