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MMK ETF — State Street Prime Money Market ETF
State Street Prime Money Market ETF (MMK)
Updated October 16, 2026.
Verdict as of October 16, 2026
MMK's distribution is rated safe by the Dividend Vision Distribution Safety Score™ (92/100, medium confidence). It pays monthly and its distribution rate is 3.72%. The latest total cash payment per current share, $0.311 with an ex-date of October 1, 2026, was 0.3% higher than the previous $0.31. These payments are unclassified; this does not establish a base-dividend change.
Sources: State Street, Section 19a-1 notices, scoring methodology.
MMK is a low-cost ETF. its distribution rate is 3.72%, its trailing-12-month yield is 2.30%, its expense ratio is 0.18%. Dividend Vision Distribution Safety Score™ is 92/100 (Safe). Total return is 2.5% over the past 0.7 years, 10.4 points behind SPY at 12.9%.
State Street Prime Money Market ETF is a money market fund that invests more than 25% of its assets in bank obligations, with a substantial portion in securities issued under federal securities law exemptions. The fund offers a competitive current distribution rate with monthly distributions and carries an expense ratio of 0.18%. It appeals to investors seeking steady income and liquidity from short-term, high-quality fixed-income securities.
MMK dividend yield and income
Price as of 2026-10-16.
The distribution rate (3.72%) uses calculation basis unavailable. Trailing-12-month yield (2.30%) is the last year of cash distributions by ex-date divided by the current price. The dividend amount is $0.311. The ex-dividend date is 10/01/2026. The payment date is 10/06/2026.
| Ex-date | Amount | Change from previous payment |
|---|---|---|
| 2026-10-01 | $0.311 | 0.3% Unclassified cash |
| 2026-09-01 | $0.31 | 1.0% Unclassified cash |
| 2026-08-03 | $0.307 | 6.6% Unclassified cash |
| 2026-07-01 | $0.288 | -5.9% Unclassified cash |
| 2026-06-01 | $0.306 | 2.7% Unclassified cash |
| 2026-05-01 | $0.298 | -2.9% Unclassified cash |
| 2026-04-01 | $0.307 | 72.5% Unclassified cash |
| 2026-03-02 | $0.178 | — |
| 2026 YTD total | $2.305 | — |
MMK holdings and sector exposure
Holdings are not available for this snapshot.
MMK performance versus SPY
Price and return data through 2026-10-16.
Total return is 2.5% over the past 0.7 years, 10.4 points behind SPY at 12.9%.
| Window | Total return | CAGR |
|---|---|---|
| 1M | 0.3% | — |
| 3M | 1.0% | — |
| 6M | 1.9% | — |
| YTD | 2.5% | — |
| Since inception (0.7 years) | 2.5% | — |
MMK key facts
- Distribution Safety Score™
- 92 · Safe
- Safety-Adjusted Yield
- 3.42%
- Issuer
- State Street
- Asset type
- ETF
- Asset class
- Fixed Income
- Inception date
- 02/11/2026
- Expense ratio
- 0.18%
- Distribution rate
- 3.72%
- Distribution frequency
- Monthly
- Trailing yield
- 2.30%
- Last close
- $100.19 (as of 2026-10-16)
- AUM
- $29,008,671
- Average volume
- 4350.0
- Dividend
- $0.311
- Ex-dividend date
- 10/01/2026
- Payment date
- 10/06/2026
- Beta
- -0.0017
How Dividend Vision calculates yield and returns
Distribution rate (3.72%) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield (2.30%) 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: State Street; 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.
MMK risks and drawbacks
MMK'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 MMK — and who may not
MMK 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 MMK
Frequently asked questions
Does MMK pay monthly?
Yes. MMK currently pays monthly.
What is MMK's expense ratio?
MMK's expense ratio is 0.18%.
What is MMK's dividend yield?
MMK's distribution rate is 3.72%, paid monthly, with a 0.18% expense ratio — calculation basis unavailable.
When does MMK pay a dividend?
MMK pays monthly. The dividend amount is $0.311. The ex-dividend date is 10/01/2026. The payment date is 10/06/2026.
How has MMK performed?
Total return is 2.5% over the past 0.7 years, 10.4 points behind SPY at 12.9%.
Is MMK a good investment?
MMK's Dividend Vision Distribution Safety Score is 92 (Safe). That is a risk signal, not investment advice. Its distribution rate is 3.72% (calculation basis unavailable). Compare peers below rather than treating any single figure as a buy or sell.
More securities from State Street.
Tickers
Holdings as-of date unavailable.
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