ProShares UltraPro S&P 500 (UPRO) Short Interest Ratio & Short Volume

Short interest is the volume of ProShares UltraPro S&P 500 shares that have been sold short but have not yet been covered or closed out. As of May 31st, traders have sold 2,020,000 shares of UPRO short. 4.21% of ProShares UltraPro S&P 500's shares are currently sold short. Learn More on ProShares UltraPro S&P 500's current short interest.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of ProShares UltraPro S&P 500: Jane Street Group LLC, Parallax Volatility Advisers L.P., Jane Street Group LLC, and Walleye Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 4.21% of ProShares UltraPro S&P 500's floating shares are currently sold short.

ProShares UltraPro S&P 500 saw a drop in short interest during the month of May. As of May 31st, there was short interest totaling 2,020,000 shares, a drop of 1.9% from the previous total of 2,060,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

4.21% of ProShares UltraPro S&P 500's shares are currently sold short. Here is how the short interest of companies compare to ProShares UltraPro S&P 500: Schwab 1000 Index ETF (0.03%), Dimensional US Large Cap Value ETF (0.08%), Fidelity Enhanced Large Cap Growth ETF (0.16%), BNY Mellon US Large Cap Core Equity ETF (0.30%), Fidelity Enhanced Large Cap Core ETF (0.11%), iShares ESG MSCI KLD 400 ETF (0.01%), Putnam Focused Large Cap Value ETF (0.26%), JPMorgan Hedged Equity Laddered Overlay ETF (0.16%), ProShares UltraPro Short QQQ (10.05%), Principal U.S. Mega-Cap ETF (0.06%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($64.96 billion), Invesco QQQ ($27.88 billion), iShares Russell 2000 ETF ($19.94 billion), iShares 20+ Year Treasury Bond ETF ($9.69 billion), MicroStrategy Incorporated ($8.58 billion), SPDR S&P Biotech ETF ($5.72 billion), Invesco S&P 500 Equal Weight ETF ($5.45 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.70 billion), Charter Communications, Inc. ($4.54 billion), and Industrial Select Sector SPDR Fund ($4.49 billion). View all of the most shorted stocks.

Short selling UPRO is an investing strategy that aims to generate trading profit from ProShares UltraPro S&P 500 as its price is falling. UPRO shares are trading up $1.97 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for ProShares UltraPro S&P 500 occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of UPRO, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including UPRO, twice per month. The most recent reporting period available is May, 31 2025.