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State Street Prime Money Market ETF (MMK)

Prime Money Market | Exchange Traded Fund | NYSE
100.14 USD +0.01 (0.015%) ⇧ (July 14, 2026, 10:29 a.m. EDT)

Short-term:★★⯪☆☆Long-term:★★⯪☆☆Dividends:★★★☆☆
Hot Take | July 11, 2026, 6:05 a.m. EDT

This instrument is a specialized money market fund designed to park cash, not a traditional equity investment. The price action confirms this nature, trading in a tight range between $99.99 and $100.32 with negligible volatility, rendering standard momentum or technical analysis irrelevant. While the recent 14-day price trend shows a slight dip from the session highs, the asset remains stable within its intended narrow band. The distribution history reveals a consistent monthly payout averaging around $0.29-$0.31, though the March payment was notably lower at $0.178, suggesting potential variability based on prevailing short-term rates or specific accounting timing rather than a structural cut. Given the lack of historical price anchors beyond the current window and the absence of multi-year trajectory data, a long-term assessment cannot be derived from past performance; however, the current fundamentals of a prime money market ETF suggest it serves as a neutral holding for liquidity preservation rather than capital appreciation. The statistical forecast model indicates a flat outlook with very high confidence, which aligns perfectly with the expectation of zero beta behavior for this sector.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
MSTL_20 ✓0.000440
AutoETS0.000763
AutoTheta0.000771
AutoARIMA0.000772
MSTL0.000799

Forecast horizon: 60 days | Selected: MSTL_20

Forecast Reliability
Score 84%
H-stat 1.25
Ljung-Box p 0.027
Jarque-Bera p 0.000
Excess Kurtosis 5.31

Dividend Data

Dividend History
Date Dividend Yield %
2026-07-01 0.288 0.287971
2026-06-01 0.306 0.306000
2026-05-01 0.298 0.297940
2026-04-01 0.307 0.307031
2026-03-02 0.178 0.177982
Additional Data
trailingAnnualDividendRate 0.0
trailingAnnualDividendYield 0.0

Info Dump

Attribute Value
All Time High 100.32
All Time Low 99.99
Ask 156.26
Ask Size 5,000
Average Daily Volume10 Day 2,310
Average Daily Volume3 Month 1,678
Average Volume 1,678
Average Volume10Days 2,310
Beta3 Year 0.0
Bid 50.07
Bid Size 5,100
Category Prime Money Market
Crypto Tradeable 0
Currency USD
Custom Price Alert Confidence HIGH
Day High 100.14
Day Low 100.13
Esg Populated 0
Exchange NYQ
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 100.1366
Fifty Day Average Change -0.0015945435
Fifty Day Average Change Percent -0.000015923682
Fifty Two Week Change Percent 0.09998083
Fifty Two Week High 100.32
Fifty Two Week High Change -0.18499756
Fifty Two Week High Change Percent -0.0018440746
Fifty Two Week Low 99.99
Fifty Two Week Low Change 0.14500427
Fifty Two Week Low Change Percent 0.0014501878
Fifty Two Week Range 99.99 - 100.32
First Trade Date Milliseconds 1,770,906,600,000
Full Exchange Name NYSE
Fund Family State Street Investment Management
Fund Inception Date 1,770,768,000
Gmt Off Set Milliseconds -14,400,000
Has Pre Post Market Data 1
Language en-US
Legal Type Exchange Traded Fund
Long Business Summary Under normal market conditions, the Advisor intends to invest more than 25% of its total assets in bank obligations. A substantial portion of the fund may be invested in securities that are issued or traded pursuant to exemptions from registration under the federal securities laws.
Long Name State Street Prime Money Market ETF
Market us_market
Market State PRE
Max Age 86,400
Message Board Id finmb_1967751812
Nav Price 100.13545
Net Assets 27,076,220.0
Net Expense Ratio 0.18
Open 100.14
Previous Close 100.12
Price Hint 2
Quote Source Name Nasdaq Real Time Price
Quote Type ETF
Region US
Regular Market Change 0.0149994
Regular Market Change Percent 0.0149814
Regular Market Day High 100.14
Regular Market Day Low 100.13
Regular Market Day Range 100.13 - 100.14
Regular Market Open 100.14
Regular Market Previous Close 100.12
Regular Market Price 100.135
Regular Market Time 1,784,039,374
Regular Market Volume 721
Short Name State Street Prime Money Market
Source Interval 15
Symbol MMK
Total Assets 27,076,220
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Peg Ratio None
Trailing Three Month Nav Returns 0.93127
Trailing Three Month Returns 0.93127
Triggerable 1
Two Hundred Day Average 100.13699
Two Hundred Day Average Change -0.001991272
Two Hundred Day Average Change Percent -0.000019885478
Type Disp ETF
Volume 721