iShares Prime Money Market ETF (PMMF) Short Interest Ratio & Short Volume

Short interest is the volume of iShares Prime Money Market ETF shares that have been sold short but have not yet been covered or closed out. As of August 31st, traders have sold 3,500 shares of PMMF short. 0.13% of iShares Prime Money Market ETF's shares are currently sold short. Learn More on iShares Prime Money Market ETF'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. 0.13% of iShares Prime Money Market ETF's floating shares are currently sold short.

iShares Prime Money Market ETF saw a decrease in short interest during the month of August. As of August 31st, there was short interest totaling 3,500 shares, a decrease of 72.0% from the previous total of 12,500 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.

0.13% of iShares Prime Money Market ETF's shares are currently sold short. Here is how the short interest of companies compare to iShares Prime Money Market ETF: Simplify Aggregate Bond ETF (0.13%), NYLI MacKay Municipal Insured ETF (0.05%), Invesco BulletShares 2026 Municipal Bond ETF (0.25%), Tcw Aaa Clo Etf (0.10%), SP Funds Dow Jones Global Sukuk ETF (0.21%), Amplify Samsung SOFR ETF (1.49%), Invesco BulletShares 2027 Municipal Bond ETF (0.12%), Fidelity Limited Term Bond ETF (1.23%), Invesco BulletShares 2034 Corporate Bond ETF (0.69%), Congress Intermediate Bond ETF (0.10%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($73.23 billion), Invesco QQQ ($29.52 billion), iShares Russell 2000 ETF ($20.82 billion), iShares 20+ Year Treasury Bond ETF ($10.76 billion), Palo Alto Networks, Inc. ($9.37 billion), Strategy Inc ($7.58 billion), Invesco S&P 500 Equal Weight ETF ($6.78 billion), SPDR S&P Biotech ETF ($6.72 billion), AppLovin Corporation ($6.37 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($6.29 billion). View all of the most shorted stocks.

Short selling PMMF is an investing strategy that aims to generate trading profit from iShares Prime Money Market ETF as its price is falling. PMMF shares are trading up $0.03 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 iShares Prime Money Market ETF 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 PMMF, 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 PMMF, twice per month. The most recent reporting period available is August, 31 2025.