Short Sellers Are Betting Record Amounts Against Stocks. But the Market is Rallying On a Potential Deal Between Trump and Iran.

Short interest in the median S&P 500 stock is 3% of market cap, the highest level since 2012 and double the 2020 pandemic readings. The most heavily shorted decile is 8% of market cap, the highest since 2018 and above levels seen in the post–dot-com bear market. During the 2008 financial crisis, short interest reached 4%, so current levels are multi-year highs rather than a literal peak. Despite bearish positioning, the S&P 500 is up 10% year to date and the NASDAQ 100 is up 19%, with tech leading. Traders are pricing potential U.S.-Iran de-escalation that could reduce the geopolitical risk premium, especially in oil.

"Short interest in the median S&P 500 stock now sits at 3% of market cap, which is the highest level since 2012 and double the readings seen during the 2020 pandemic. The most heavily shorted decile of the index sits at 8% of market cap, the highest since 2018. Both readings now exceed the levels reached during the bear market that followed the 2000 dot-com bust."

"That said, the "record" framing deserves a caveat. At the depths of the 2008 financial crisis, short interest in the median S&P 500 name reached 4%, still higher than today's 3%. So this is multi-year high territory rather than a literal all-time peak. The professionals are leaning bearish, but they're not quite as bearish as they were the last time the wheels came off."

"Pushing against that positioning is the geopolitical narrative. The S&P 500 is up 10% year to date, while the NASDAQ 100 has surged 19%, with tech leading a classic risk-on rotation. Traders are pricing in a potential U.S.-Iran de-escalation, a deal that would defuse the geopolitical risk premium baked into oil and broader risk assets."

"Two signals are running in opposite directions on Wall Street right now, and both are flashing at maximum intensity. Hedge funds and professional traders are piling into short positions at levels not seen in more than a decade. At the same time, the S&P 500 and the NASDAQ 100 are pressing against all-time highs on optimism that the Trump administration may be nearing a diplomatic breakthrough with Iran."

Read at 24/7 Wall St.