iShares Prime Money Market ETF (PMMF) closed at $100.29 on November 6, 2026, unchanged from the previous close, on volume of 329,931 shares (30-day average 179,555).
Data as of November 6, 2026.
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The iShares Prime Money Market ETF seeks as high a level of current income as is consistent with liquidity and stability of principal. The Fund seeks to achieve its investment objective by investing, under normal circumstances, in a broad range of U.S. dollar-denominated money market instruments, including government, U.S. and foreign bank, and commercial obligations and repurchase agreements. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. In addition, the Fund may invest in mortgage- and asset-backed securities, short-term obligations issued by or on behalf of states, territories and possessions of the United States, the District of Columbia, and their respective authorities, agencies, instrumentalities and political subdivisions and derivative securities. The Fund may also invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a-7, and other rules of the Securities and Exchange Commission ("SEC").
iShares Prime Money Market ETF trades on the ARCA stock market under the symbol PMMF.
As of November 9, 2026, PMMF stock price climbed to $100.32 with 222,662 million shares trading.
PMMF has a beta of -0.00, meaning it tends to be less sensitive to market movements. PMMF has a correlation of 0.00 to the broad based SPY ETF.
PMMF has a market cap of $767.45 million. This is considered a Small Cap stock.
PMMF has underperformed the market in the last year with a return of +3.7%, while SPY returned +13.5%. This shows that you would have done better investing in the overall market (through SPY) over the last year than in PMMF shares. However, PMMF has outperformed the market in the last 3 month and 2 week periods, returning +1.0% and +0.2%, while SPY returned -1.8% and -0.9%, respectively. This indicates PMMF has been having a stronger performance recently.
PMMF support price is $100.27 and resistance is $100.31 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that PMMF shares will trade within this expected range on the day.
