State Street Prime Money Market ETF
No trades
No trades
Key stats
Details
Home page
Inception date
Feb 10, 2026
Structure
Open-Ended Fund
Replication method
Physical
Dividend treatment
Distributes
Distribution tax treatment
Ordinary income
Income tax type
Capital Gains
Max ST capital gains rate
39.60%
Max LT capital gains rate
20.00%
Primary advisor
SSgA Funds Management, Inc.
Distributor
State Street Corp. (Fund Distributor)
ISIN
US85749T2859
CUSIP
85749T285
FIGI
BBG0202DNYG9
Identifiers
ISIN US85749T2859
MMK seeks to maximize current income while maintaining capital preservation and liquidity by broadly investing in money market instruments. The actively managed fund employs its credit research team to assess the relative attractiveness of instruments based on the general interest rates and market supply/demand imbalances. The fund invests in US government securities (T-bills, notes, and bonds), USD-denominated certificates of deposit and time deposits from banks, US and non-US commercial paper, high-quality company obligations, asset-backed and mortgage-related securities, and repurchase agreements. The fund invests in low-risk, high-quality debt with maturities of 397 days or less, targeting a dollar-weighted average maturity of no more than 60 days and a dollar-weighted average life of 120 days or less. The fund typically invests over 25% in bank obligations. As share price and NAV are expected to fluctuate, shares may be worth more or less than their original price when sold.
Classification
Returns
| 1 month | 3 months | Year to date | 1 year | 3 years | 5 years | |
|---|---|---|---|---|---|---|
| Price performance | — | — | — | — | — | — |
| NAV total return | — | — | — | — | — | — |
What's in the fund
Exposure type
Cash
Corporate
Bonds, Cash & Other100.00%
Cash53.81%
Corporate39.99%
Government6.21%
Breakdown by region
North America100.00%
Latin America0.00%
Europe0.00%
Asia0.00%
Africa0.00%
Middle East0.00%
Oceania0.00%
Top 10 holdings
Dividends
Dividend payout history
Assets under management (AUM)
Fund Flows
Frequently asked questions
MMK last dividends amounted to 0.29 USD. The month before, the issuer paid 0.31 USD in dividends, which shows a 6.33% decrease.
MMK assets under management is 28.06 M USD. It's risen 3.70% over the last month.
MMK fund flows account for 3.00 M USD (1 year). Many traders use this metric to get insight into investors' sentiment and evaluate whether it's time to buy or sell the fund.
Yes, MMK pays dividends to its holders with the dividend yield of 3.30%. The last dividend (Jul 7, 2026) amounted to 0.29 USD. The dividends are paid monthly.
MMK shares are issued by State Street Corp. under the brand State Street. The ETF was launched on Feb 10, 2026, and its management style is Active.
MMK expense ratio is 0.18% meaning you'd have to pay 0.18% of your investment to help manage the fund.
MMK follows the No Underlying Index. ETFs usually track some benchmark seeking to replicate its performance and guide asset selection and objectives.
MMK invests in cash.
MMK trades at a premium (0.01%) meaning the ETF is trading at a higher price than the calculated NAV.