PMMF ETF — iShares Prime Money Market ETF

iShares Prime Money Market ETF (PMMF)

Updated October 16, 2026.

PMMF is a low-cost ETF. its distribution rate is 3.73%, its trailing-12-month yield is 3.80%, its expense ratio is 0.20%. Dividend Vision Distribution Safety Score™ is 90/100 (Safe). Total return is 6.9% over the past 1.7 years, 21.9 points behind SPY at 28.8%.

iShares Prime Money Market ETF is an ETF that invests in a broad range of U.S. dollar-denominated money market instruments, including government obligations, bank instruments, commercial paper, and repurchase agreements. The fund carries a modest expense ratio of 0.20% and distributes income weekly at a current high distribution rate. This ETF appeals to investors seeking short-term, liquid holdings with regular income distributions and minimal interest rate risk.

PMMF performance versus SPY

Price and return data through 2026-10-16.

Total return is 6.9% over the past 1.7 years, 21.9 points behind SPY at 28.8%. Over the past year its total return — price change plus distributions reinvested — is 3.7%.

PMMF key facts

Distribution Safety Score™

90 · Safe

Safety-Adjusted Yield

3.36%

Issuer

iShares

Asset type

ETF

Asset class

Equity

Inception date

02/04/2025

Expense ratio

0.20%

Distribution rate

3.73%

Distribution frequency

Weekly

Trailing yield

3.80%

Last close

$100.27 (as of 2026-10-16)

AUM

$785,369,025

Average volume

168796.0

Dividend

$0.07183

Ex-dividend date

10/14/2026

Payment date

10/15/2026

Beta

0.0014

How Dividend Vision calculates yield and returns

Distribution rate (3.73%) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield (3.80%) is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: iShares; prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

PMMF risks and drawbacks

PMMF's current distribution rate is moderate, not a high-yield payout — the strategy is dividend quality more than maximum income. Total return has trailed SPY over the available window.

Who may consider PMMF — and who may not

PMMF may suit someone looking for low-cost broad dividend exposure, a high Distribution Safety Score, moderate current income with a quality tilt. It is a weaker fit for investors hunting double-digit covered-call yields; investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

More on PMMF

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Frequently asked questions

More securities from iShares.