During the U.S. stock market rebound, hedge funds' short selling reaches a ten-year high, while retail investors break records by buying the dip in a contrarian move.

During the recent rebound in the US stock market, hedge funds have been aggressively shorting, with the COT report indicating cumulative short positions amounting to $25 billion, hitting a ten-year high. Meanwhile, retail investors, unfazed by market uncertainty, continue buying the dips, with single-day net purchases reaching a new all-time high. This highlights a significant split in market sentiment, with institutions remaining skeptical of the rebound while retail investors view it as a buying opportunity.
Key Updates
05/21 14:50
During the U.S. stock market rebound, hedge funds' short selling reaches a ten-year high, while retail investors break records by buying the dip in a contrarian move.
During the recent rebound in the US stock market, hedge funds have been aggressively shorting, with the COT report indicating cumulative short positions amounting to $25 billion, hitting a ten-year high. Meanwhile, retail investors, unfazed by market uncertainty, continue buying the dips, with single-day net purchases reaching a new all-time high. This highlights a significant split in market sentiment, with institutions remaining skeptical of the rebound while retail investors view it as a buying opportunity.
Hedge Funds Increase Short Positions, Amount Reaches Ten-Year High
According to the COT report released by the U.S. Commodity Futures Trading Commission (CFTC), there was a large-scale shorting activity in the market during the week from May 6 to 13, 2025, with a total amount of $11.1 billion, far exceeding the $4.2 billion in long positions opened during the same period. The overall net long positions thus decreased by $6.9 billion. Goldman Sachs trader Robert Quinn pointed out that hedge funds were the main force behind this wave of shorting, with a net selling amount of $7.3 billion, including new short positions amounting to $9.4 billion.
This trend is not a short-term phenomenon. According to the statistics of the latest three COT reports, the cumulative shorting amount by hedge funds has reached $25 billion, the largest scale in at least the past ten years. The proportion of hedge fund short positions in total open contracts has also risen to 41%, the highest level since February 2021.
Goldman Sachs analysts further noted that although some of these short positions may be for hedging other long positions in arbitrage operations, such a large scale of short positions still reflects hedge funds' high skepticism about the current rebound in U.S. stocks.
Retail Investors Buy the Dip, Purchase Amount Sets Record
In stark contrast to the cautious or even pessimistic attitude of hedge funds, retail investors have shown a strong willingness to buy after the recent market decline. According to reports, after President Trump announced a 90-day tariff suspension, U.S. stocks experienced a V-shaped rebound, and retail investors took the opportunity to enter the market in large numbers. On just one Monday this month, the net purchase amount by retail investors reached $5.4 billion, setting a single-day historical high.
According to data from JPMorgan, retail investors accounted for 36% of U.S. stock trading volume at the end of April, the highest level in history. Bank of America also pointed out that retail investors have been net buyers of U.S. stocks for 22 consecutive weeks, the longest continuous buying record since 2008.
These retail investors are mostly not constrained by institutional models and client pressures, instead viewing market panic as an opportunity to "buy cheap." As Dave Mazza of Roundhill Investments said, "In a market dominated by fear, these small and steady buyers are winning."
Market Sentiment Divergence Intensifies
Despite the Nasdaq index rising 7.1% from May 6 to 13, leading the S&P 500 index's 5.0% and the E-mini Russell 2000 index's 6.0%, hedge funds significantly increased their short positions during this period, indicating institutional investors' skepticism about the sustainability of the rebound.
According to Goldman Sachs data, hedge funds not only increased short positions in stock index futures but also conducted large-scale short operations on ETFs and individual stocks. Second-quarter ETF short positions reached $218 billion, and single-stock short positions were even higher at $948 billion. The short ratio in defensive sectors such as consumer staples, utilities, and healthcare has entered historical high ranges.
Additionally, according to Benzinga reports, the short position of the SPDR S&P Regional Banking ETF (KRE) has surged by 50 percentage points since mid-February, reaching 96% of the outstanding shares; the SPDR S&P Biotech ETF (XBI) and iShares Russell 2000 ETF (IWM) also reached short ratios of 111% and 33%, respectively.
Divergence in Capital Flows Between Retail and Institutional Investors
The divergence in capital flows between retail investors and hedge funds reflects the high uncertainty about future market trends. According to observations by the Dunham Fund, this is one of the few times retail investors have bought against the trend during market panic and achieved short-term victories. The S&P 500 index has rebounded 23% since April, with 14% of the gains occurring in just 17 trading days.
However, this "buying fear" strategy also carries risks. As prices rise, retail investors not only continue to buy but also "double down" at higher prices, and this behavior of "averaging up" may face greater losses in future market corrections.
CEO and Market Confidence Divergence
Notably, some recent statements by company CEOs also align with the conservative stance of hedge funds. According to reports, the CEO confidence index has shown a clear divergence from the U.S. stock market trend, which is relatively rare in history. Typically, CEO confidence correlates positively with stock market performance, but the current divergence may reflect corporate concerns about economic prospects.
Moreover, although recent "hard data" such as employment and wage growth remain resilient, "soft data" like the University of Michigan consumer confidence index shows a collapse in confidence and a surge in inflation expectations, further exacerbating market uncertainty.
References
- 個人投資者洶湧逢低買入美股之際,對沖基金大舉做空
- 美股不妙? 對沖基金做空金額達7550億創逾10年來最大規模
- Hedge Funds Question Market Rally, Build Massive Short Wall - Amer Sports (NYSE:AS), First Solar (NASDAQ:FSLR)
- Retail Turns Fearless as ’Buy the Dip’ Goes on Steroids | Investing.com
- UPDATE: Both DunhamDC Models SELL GREED as Market Euphoria Runs | Dunham
- As retail investors rush to buy U.S. stocks on dips, hedge funds are heavily shorting
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