Most shorted S&P 500 stocks in October Posted on November 15, 2024 by wpadmin Gunter_Nezhoda Super Micro Computer (SMCI) held its position as the most shorted S&P 500 (SP500) stock as a percentage of float for the third consecutive month in October. As of Oct 31, 18.98% of Super Micro’s (SMCI) shares were sold