Short sellers in U.S. equities are becoming increasingly exposed to further market gains, according to Citi, as investors rebuild risk positions across major developed markets. Recent flows have primarily reflected fresh buying rather than investors simply closing bearish bets, suggesting confidence is gradually returning to U.S. and European equities. Citi strategists said positioning strengthened across all major U.S. equity indices during the latest week.
Importantly, the improvement was driven predominantly by investors establishing new long positions rather than covering existing shorts. The Nasdaq and S&P 500 registered similar week-on-week improvements, with positioning in both indices moving out of bearish territory and returning to a net long stance. The Russell 2000 remains the most extended U.S. index covered by Citi, indicating that positioning in smaller companies has already moved further than in the large-cap benchmarks.
The recovery in U.S. stocks has increased pressure on investors maintaining short positions. Citi said average losses across S&P 500 short positions are now elevated, "leaving the sizeable short base vulnerable to forced covering should markets grind higher." If equities continue advancing, short sellers facing mounting losses may be forced to buy shares to close their positions. That activity could itself generate additional upward pressure, potentially accelerating the market's advance through a short squeeze.
Citi said the current imbalance between potential gains and losses means positioning risk is "skewed toward additional squeeze-driven flows." The broader message from Citi's positioning data is that investors are becoming more willing to take risk. Rather than the recent improvement simply reflecting bearish traders exiting losing positions, new capital is being deployed into long equity positions. That distinction is important because fresh long accumulation can indicate greater underlying confidence in the market outlook.
Citi said this has been the dominant pattern over the past week, particularly across the United States and Europe. European markets produced one of the clearest recoveries in global positioning, according to Citi. Weekly flows were dominated by new long positions, pushing positioning in the EuroStoxx 50 and FTSE towards moderately bullish levels.
The DAX has also continued recovering from previous weakness and is now more closely aligned with the constructive positioning already visible among European banking stocks. Europe recorded the strongest overall positioning recovery among developed markets, accompanied by an improvement in positioning profit and loss. The shift towards new long positions suggests investors are showing greater confidence in European equities rather than merely reducing bearish exposure.
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