ProShares Short MidCap 400 (MYY) Short Interest Ratio & Short Volume

Short interest is the volume of ProShares Short MidCap 400 shares that have been sold short but have not yet been covered or closed out. As of July 31st, traders have sold 2,800 shares of MYY short. 1.04% of ProShares Short MidCap 400's shares are currently sold short. Learn More on ProShares Short MidCap 400's current short interest.

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. 1.04% of ProShares Short MidCap 400's floating shares are currently sold short.

ProShares Short MidCap 400 saw a increase in short interest in July. As of July 31st, there was short interest totaling 2,800 shares, an increase of 21.7% from the previous total of 2,300 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.

1.04% of ProShares Short MidCap 400's shares are currently sold short. Here is how the short interest of companies compare to ProShares Short MidCap 400: Xtrackers S&P MidCap 400 Scored & Screened ETF (0.22%), Alger Weatherbie Enduring Growth ETF (0.05%), ProShares UltraPro Short MidCap 400 (3.79%), WisdomTree U.S. MidCap Quality Growth Fund (0.20%), ProShares UltraShort MidCap 400 (5.79%), Strive Mid-Cap ETF (0.04%), SoFi Next 500 ETF (0.01%), ProShares UltraPro MidCap 400 (1.89%), Pacer Lunt MidCap Multi-Factor Alternator ETF (0.97%), Direxion Daily Mid Cap Bull 3X Shares (0.39%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks.

Short selling MYY is an investing strategy that aims to generate trading profit from ProShares Short MidCap 400 as its price is falling. MYY shares are trading down $0.50 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 Short MidCap 400 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 MYY, 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 MYY, twice per month. The most recent reporting period available is July, 31 2025.