Hedge Funds Pile Into Shorts as Goldman Flags Squeeze Risk
Hedge funds have added to their short positions in equities until bearish bets sit near a five-year high, and Goldman Sachs has warned that a rebound could force a sharp squeeze, Bloomberg reported on October 22, 2026.
The scale of the positioning is visible in Goldman's prime brokerage data. Short leverage in the bank's prime book stood at the 99th percentile of its five-year history, according to reporting on the same week's positioning. For readers outside the trade, short leverage is the gross value of borrowed-and-sold stock relative to a fund's capital. A reading at the 99th percentile means the books are about as heavily short, measured against their own history, as they have been in five years. A short position only pays if the price falls, and it has to be bought back, or covered, at some point. When prices rise instead, that covering becomes a source of buying pressure, which is the mechanism behind the squeeze risk Goldman flagged.
The shift has been building for months. In February 2026, hedge funds' short sales of U.S. stocks outpaced their long purchases two to one, per Bloomberg's February reporting. Goldman's own assessment has moved in a different direction on one measure. In an October 9 note, Goldman stated that hedge fund positioning in equities for long-short strategies is at historically low levels, pointing to volatility in interest rates and oil. Those readings can coexist. Net exposure can be low while gross short exposure is high, because a fund can be cautious on the whole market while hedging a concentrated set of longs with a growing pile of shorts. Which of those two pictures dominates the tape right now is the question the squeeze debate turns on.
Tech is where the selling has been most pronounced. Goldman's prime desk said hedge funds retreated from technology stocks at the fastest pace in at least a decade. Performance reflects the same stress. Global fundamental long-short funds dropped 3.8% in October 2026 through the latest Goldman figures, yet remained up 8.8% for the year as of October 23, according to Goldman Sachs as reported by Reuters. The month-to-date loss is the part of the picture still unfolding. The year-to-date gain is the cushion that makes the current drawdown look more like a rotation than a rout.
Asia is a harder story. Asia-focused fundamental long-short funds fell 18.6% on average through July 28, according to a Goldman prime brokerage note reported by Reuters on July 30. It does indicate that stock pickers have had a difficult summer outside the United States.
The squeeze risk has a recent precedent. In January 2021, Melvin Capital Management lost 53% for the month after bearing losses from the soaring prices of heavily shorted stocks, including a GameStop short, as MarketWatch reported at the time. That episode was concentrated in a small number of names. The current warning is about crowding across the book, which is a different risk. A broad, index-level rally driven by covering would move prices for ordinary savers in index funds and retirement accounts, not just for the funds on the other side of the trade.
Morgan Stanley's 2026 market outlook took a different angle. It stated that hedge funds, particularly market-neutral strategies, are attractive, in its January 2026 outlook. Market-neutral funds carry matched long and short books, so they are designed to be less exposed to the direction of the overall market. Heavy short books inside those strategies would look different from heavy net-short books in directional funds, and the distinction matters for how any squeeze would transmit.
The useful test for the next few weeks is whether short leverage falls through covering without a price spike, or whether a rally forces a scramble. Goldman's warning is a risk flag, not a forecast of a rally, and the positioning data describes what funds hold, not where prices will go. Anyone reading these numbers should keep that line clear.
