MMK · NYSE · ETF
State Street Prime Money Market ETF (MMK) Price, Holdings & Fees
$625.32+0.83%+$5.16End-of-day price as of Oct 9, 2026
Sample prices
Prices on this page are generated sample data for development, not real market data.
State Street Prime Money Market ETF (MMK) closed at $625.32 on Oct 9, 2026, up 0.83% from the previous close of $620.16.
Share price, past year
1Y +8.31%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $625.32 |
| Sep 30, 2026 | $611.35 |
| Aug 31, 2026 | $585.60 |
| Jul 31, 2026 | $586.68 |
| Jun 30, 2026 | $592.28 |
| May 29, 2026 | $588.17 |
| Apr 30, 2026 | $574.75 |
| Mar 31, 2026 | $568.01 |
| Feb 27, 2026 | $555.07 |
| Jan 30, 2026 | $545.20 |
| Dec 31, 2025 | $531.48 |
| Nov 28, 2025 | $542.25 |
| Oct 31, 2025 | $549.66 |
Key statistics
- Expense ratio
- 0.18%
- as of Jan 31, 2026
- 52-week range
- $522.89 – $625.32
State Street Prime Money Market ETF's expense ratio is 0.18%: $18.00 a year on $10,000 invested.
Fund profile
- Name
- State Street Prime Money Market ETF
- Ticker
- MMK
- Exchange
- NYSE
- Fund type
- ETF
- SEC series ID
- S000100105
- Fractional shares
- No
Frequently asked questions
What is MMK's price?
State Street Prime Money Market ETF (MMK) closed at $625.32 on Oct 9, 2026, up 0.83% from the previous close of $620.16.
What is MMK's expense ratio?
State Street Prime Money Market ETF's expense ratio is 0.18%: $18.00 a year on $10,000 invested.
Sources and methodology
State Street Prime Money Market ETF doesn't file N-PORT holdings reports with the SEC, so this page has no holdings. The expense ratio is from the fund's prospectus or shareholder report, as of Jan 31, 2026. Prices are generated sample data for development. Data sources and disclosures