Short sellers faced a $36 billion loss as stock market rallied since April lows.
The biggest tech names like Tesla, Nvidia, and Microsoft caused significant losses for short bets.
Short positions in Tesla, Nvidia, and Microsoft accounted for steepest market value losses over the 42-day period.
Short-sellers experienced losses due to the volatility from President Donald Trump's tariffs, with 48% of all short positions being unprofitable in 2025.