MMK State Street Prime Money Market ETF
Quote as of Aug 26, 2026 14:33 UTC · Market data delayed approximately 15–20 minutes unless otherwise indicated.
| Previous Close | 100.26 | Day Range | 100.26 – 100.27 |
| 52-Week Range | 99.99 – 100.34 | Volume | 158 |
| Avg Volume | 1.79K | AUM | $29.1M (Aug 27, 2026) |
| Expense Ratio | 0.18% | Yield (TTM) | 1.68% |
| NAV | 100.26 | Premium/Discount | +0.01% indicative |
| Inception | Feb 10, 2026 | Holdings | 45 |
| Issuer | SPDR | Exchange | NYSE |
| Category | International | Index Tracked | Not stated in source data |
| CUSIP | 85749T285 | ISIN | US85749T2859 |
| Management | Actively managed (per issuer description) | ||
About this ETF
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.
Description from the fund data provider · profile as of Aug 27, 2026.
Price Chart
Daily closing prices (price return, not total return). Comparison lines are normalized to percent change from the range start. Source: Financial Modeling Prep.
Performance
| 1M | 3M | 6M | YTD | 1Y | 3Y* | 5Y* | 10Y* | Incep.* | |
|---|---|---|---|---|---|---|---|---|---|
| Price return | 0.00% | +0.02% | +0.12% | — | — | — | — | — | +0.24% |
| Total return | +0.31% | +0.93% | +1.81% | — | — | — | — | — | +1.93% |
* Annualized. Total return uses the dividend-adjusted price series (distributions reinvested); price return uses unadjusted closes. Performance through Aug 25, 2026. Past performance does not guarantee future results.
Fees
| Net expense ratio | 0.18% | Annual cost of a $10,000 investment | $18.00 |
Illustrative calculation only: expense ratio × $10,000. It excludes trading costs, bid/ask spreads, taxes and changes in investment value. Gross vs. net expense details and any fee waivers are in the prospectus.
Holdings
Holdings as of Aug 22, 2026 — portfolio reporting date from the data provider; holdings are not live positions. 72 rows in database.
| # | Holding | Ticker | Weight | Shares | Market Value |
|---|---|---|---|---|---|
| 1 | US DOLLAR | — | 24.81% | 7.14M | $7.1M |
| 2 | VERTO CAP I COMPARTMENT 08/26 ZCP | — | 2.08% | 600.00K | $599.6K |
| 3 | BARCLAYS BANK UK | — | 1.74% | 500.00K | $499.6K |
| 4 | ANGLESEA FDG PLC + ANG | — | 1.74% | 500.00K | $499.6K |
| 5 | TREASURY BILL | — | 1.73% | 500.00K | $498.3K |
| 6 | MACKINAC FUNDING | — | 1.53% | 450.00K | $441.0K |
| 7 | VERTO CAP I 144A DISC COML PAP 11/26 ZCP | — | 1.38% | 400.00K | $396.3K |
| 8 | BPCE | — | 1.28% | 375.00K | $368.1K |
| 9 | BANK MONTREAL CHICAGO BRH | — | 1.22% | 350.00K | $350.6K |
| 10 | NORDEA BANK ABP | — | 1.22% | 350.00K | $350.2K |
| 11 | HSBC BANK PLC | — | 1.22% | 350.00K | $350.2K |
| 12 | BARCLAYS BK PLC NEW YORK BRH I 09/26 FIXED 4.1 | — | 1.22% | 350.00K | $350.1K |
| 13 | ROYAL BANK OF CANADA | — | 1.22% | 350.00K | $350.1K |
| 14 | PARK AVE COLL NOTES | — | 1.22% | 350.00K | $350.1K |
| 15 | SWEDBANK AB PUBL IAM COML PAPE 02/27 VAR | — | 1.22% | 350.00K | $350.0K |
| 16 | COMMONWEALTH BK AUSTRALIA 09/26 VAR | — | 1.22% | 350.00K | $350.0K |
| 17 | NATL AUSTRALIA BK LT | — | 1.22% | 350.00K | $350.0K |
| 18 | OVERSEA CHINESE BK CO NY 10/26 FIXED 3.89 | — | 1.22% | 350.00K | $350.0K |
| 19 | MIZUHO BK LTD NEW YORK BRH INS | — | 1.22% | 350.00K | $350.0K |
| 20 | SUMITOMO MITSUI BKG CORP IAM C 08/26 VAR | — | 1.22% | 350.00K | $350.0K |
| 21 | MERRILL LYNCH TRI PARTY E REPO | — | 1.22% | 350.00K | $350.0K |
| 22 | CREDIT AGRICOLE CIB TD - 24Aug26 | — | 1.22% | 350.00K | $350.0K |
| 23 | PARK AVE COLL NOTES | — | 1.22% | 350.00K | $350.0K |
| 24 | CANADIAN IMPERIAL BK | — | 1.22% | 350.00K | $350.0K |
| 25 | NORINCHUKIN BK NEW YORK BRH IN 08/26 FIXED 3.67 | — | 1.22% | 350.00K | $350.0K |
Click a ticker to see every ETF that owns it.
Sector Exposure
Geographic Exposure
Country weights as reported by the data provider. Developed/emerging/frontier labels follow the classification on the Methodology page. Currency hedged: No hedging indicated in the fund name.
Distributions
| Yield (TTM) | 1.68% | Paid (last 12 months) | $1.6848 |
| Frequency | Monthly | SEC yield | Not provided by our data source — see the issuer page |
| Last ex-date | Aug 03, 2026 | Last payment | $0.3075 (Aug 06, 2026) |
| Growth 1Y | — | Growth 3Y / 5Y (ann.) | — / — |
| Ex-date | Record | Pay date | Amount |
|---|---|---|---|
| Aug 03, 2026 | Aug 03, 2026 | Aug 06, 2026 | $0.3075 |
| Jul 01, 2026 | Jul 01, 2026 | Jul 07, 2026 | $0.2881 |
| Jun 01, 2026 | Jun 01, 2026 | Jun 04, 2026 | $0.3063 |
| May 01, 2026 | May 01, 2026 | May 06, 2026 | $0.2979 |
| Apr 01, 2026 | Apr 01, 2026 | Apr 06, 2026 | $0.3070 |
| Mar 02, 2026 | Mar 02, 2026 | Mar 05, 2026 | $0.1780 |
Trailing distribution yield = last 12 months of cash ÷ current price. It is NOT the SEC 30-day yield and distributions are not guaranteed to continue. The difference explained →
Risk Statistics
Liquidity
| Volume today | 158 | Average volume | 1.79K |
| AUM | $29.1M | Premium/Discount | +0.01% |
| Bid/Ask spread | Not provided by our data source. Check your broker's quote screen; spreads are widest at the open and close. | ||
Premium/discount compares the delayed market price with the last reported NAV — an indicative figure, not the official closing premium/discount. How ETF liquidity works →
Fund Flows (estimated)
| Period | Est. net flow | % of starting AUM | AUM start → end |
|---|---|---|---|
| 1 Day | $0.00 | 0.00% | $29.1M → $29.1M |
| 1 Week | $5.5K | +0.02% | $29.1M → $29.1M |
ETF Explorer estimate: change in reported AUM minus the market-move effect, from our own daily snapshots. Not official issuer creation/redemption data.
Official Fund Resources
External links open the issuer's site or SEC EDGAR in a new tab. The prospectus and official documents are always the authoritative source — review them before investing.
Latest News for MMK
No articles mention this fund directly in the last 7 days — showing general ETF coverage.
Guided help: AUM is fund size. The expense ratio is the yearly cost baked into returns. NAV is the value of what the fund owns per share; the market price can sit slightly above (premium) or below (discount) it. Total return assumes distributions were reinvested. Every dataset shows its own as-of date because holdings, assets and quotes update on different schedules.