iShares Prime Money Market ETF
Symbol: PMMF
Exchange: NYSE
Sector: N/A
Category: Prime Money Market
Inception date: 04/02/2025
Latest date: 15/10/2026
Current price: $100.25
Expense ratio: 0.20%
Period performance
Adjusted cumulative ETF performance, normalized to the first available adjusted price in the selected period.
Performance metrics
Period total return
0.23%
Ann. 0.22% (Sharpe / Sortino numerator)
Volatility
0.98%
Sharpe ratio
-3.470
VaR 95%
-0.00%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
0.84%
Ann. 1.31% (Sharpe / Sortino numerator)
Volatility
0.85%
Sharpe ratio
-2.735
VaR 95%
0.00%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
1.76%
Ann. 2.68% (Sharpe / Sortino numerator)
Volatility
0.62%
Sharpe ratio
-1.543
VaR 95%
0.00%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
3.66%
Ann. 3.53% (Sharpe / Sortino numerator)
Volatility
0.52%
Sharpe ratio
-0.199
VaR 95%
-0.01%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Period total return
6.52%
Ann. 3.62% (Sharpe / Sortino numerator)
Volatility
0.48%
Sharpe ratio
-0.354
VaR 95%
-0.01%
The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.
Daily returns for period 12M
Daily simple returns from the same adjusted closes used by the performance chart: 15/10/2025 - 15/10/2026.
Average daily return
0.014%
Best day
0.045%
Worst day
-0.032%
Days with data
251
Recent price history (last 90 days)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 15/10/2026 | $100.26 | $100.26 | $100.25 | $100.25 | 173,800 |
| 14/10/2026 | $100.26 | $100.26 | $100.25 | $100.25 | 118,300 |
| 13/10/2026 | $100.32 | $100.32 | $100.31 | $100.32 | 235,200 |
| 12/10/2026 | $100.31 | $100.31 | $100.29 | $100.29 | 70,400 |
| 09/10/2026 | $100.30 | $100.30 | $100.28 | $100.29 | 126,100 |
| 08/10/2026 | $100.25 | $100.27 | $100.25 | $100.26 | 220,500 |
| 07/10/2026 | $100.25 | $100.26 | $100.25 | $100.25 | 166,500 |
| 06/10/2026 | $100.31 | $100.32 | $100.31 | $100.32 | 158,000 |
| 05/10/2026 | $100.31 | $100.31 | $100.29 | $100.31 | 289,700 |
| 02/10/2026 | $100.29 | $100.29 | $100.27 | $100.27 | 207,200 |