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Tech Rally Squeezes short Sellers, Triggering Billions in Losses
Rising stock prices, especially in tech, have created a challenging habitat for investors betting against the market.
Key Takeaways
- The stock market’s rebound since April has put pressure on short sellers.
- Major technology stocks have proven particularly tough for short positions.
- According to S3 Partners, nearly half of all short positions in 2025 have been unprofitable.
Short sellers are feeling the heat as the stock market continues its upward trajectory.
According to data provided by S3 Partners, investors who placed bets against US equities have seen the market value of their short positions decline by €226 billion between April 8 and May 20.
A significant portion of these losses, approximately €31 billion, can be attributed to the “Splendid Seven” tech stocks, which have rebounded strongly after experiencing declines in April due to concerns surrounding US tariffs.
S3 indicated that within the “Magnificent Seven,” short positions in Tesla, Nvidia, and Microsoft were the primary drivers of these market value losses during the 42-day period.
