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Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

State Street Prime Money Market ETF

MMK | ETF

$100.00

$25 M

3.57%

$3.57

0.18%

Vitals

YTD Return

N/A

1 yr return

N/A

3 Yr Avg Return

N/A

5 Yr Avg Return

N/A

Net Assets

$25 M

Holdings in Top 10

N/A

52 WEEK LOW AND HIGH

$100.3
$99.99
$100.32

Expenses

OPERATING FEES

Expense Ratio 0.18%

SALES FEES

Front Load N/A

Deferred Load N/A

TRADING FEES

Turnover N/A

Redemption Fee N/A

Min Investment

Standard (Taxable)

N/A

IRA

N/A

Fund Classification

Fund Type

Exchange Traded Fund

Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

State Street Prime Money Market ETF

MMK | ETF

$100.00

$25 M

3.57%

$3.57

0.18%

MMK - Profile

Distributions

  • YTD Total Return N/A
  • 3 Yr Annualized Total Return N/A
  • 5 Yr Annualized Total Return N/A
  • Capital Gain Distribution Frequency N/A
  • Net Income Ratio N/A
DIVIDENDS
  • Dividend Yield 3.6%
  • Dividend Distribution Frequency None

Fund Details

  • Legal Name
    State Street Prime Money Market ETF
  • Fund Family Name
    State Street Investment Management Funds
  • Inception Date
    Feb 12, 2026
  • Shares Outstanding
    N/A
  • Share Class
    N/A
  • Currency
    USD
  • Domiciled Country
    US

Fund Description

The Fund follows a disciplined investment process in which SSGA Funds Management, Inc. (“SSGA FM” or the “Adviser”), the investment adviser to the Fund, bases its decisions on the relative attractiveness of different money market instruments. In the Adviser's opinion, the attractiveness of an instrument may vary depending on the general level of interest rates, as well as imbalances of supply and demand in the market. Among other things, the Adviser conducts its own credit analyses of potential investments and portfolio holdings and relies substantially on a dedicated short-term credit research team. The Fund will qualify as a “money market fund” pursuant to Rule 2a-7 under the Investment Company Act of 1940, as amended (“Rule 2a-7”); therefore, the Fund invests in accordance with regulatory requirements applicable to money market funds, which require, among other things, the Fund to invest only in short-term, high quality debt obligations (generally, securities that have remaining maturities of 397 calendar days or less and that the Fund believes present minimal credit risk), to maintain a maximum dollar-weighted average maturity and dollar-weighted average life of sixty (60) days or less and 120 days or less, respectively, and to meet requirements as to portfolio diversification and liquidity. The Fund attempts to meet its investment objective by investing in a broad range of money market instruments. These may include, among other things: U.S. government securities, including U.S. Treasury bills, notes and bonds and other securities issued or guaranteed as to principal and/or interest, as applicable, by the U.S. government or its agencies or instrumentalities; certificates of deposits and time deposits of U.S. and foreign banks (including ECDs, ETDs and YCDs (as defined below)), commercial paper and other high quality obligations of U.S. or foreign companies; asset-backed securities, including asset-backed commercial paper; mortgage-related securities, including non-governmental mortgage-related securities; and repurchase agreements. These instruments may bear fixed, variable or floating rates of interest or may be zero-coupon securities. European Certificates of Deposit (“ECDs”) are U.S. dollar-denominated certificates of deposit issued by a bank outside of the United States. European Time Deposits (“ETDs”) are U.S. dollar-denominated deposits in foreign branches of U.S. banks and foreign banks. Yankee Certificates of Deposit (“YCDs”) are U.S. dollar-denominated certificates of deposit issued by U.S. branches of foreign banks. These instruments have different risks than those associated with the obligations of U.S. banks operating in the United States. Under normal market conditions, the Fund 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, such as commercial paper issued in reliance on the private placement exemption from registration afforded by Section 4(a)(2) of the Securities Act of 1933, as amended (the "1933 Act") and securities that may be offered and sold only to "qualified institutional buyers" under Rule 144A of the 1933 Act." Unlike a traditional money market fund, the Fund operates as an Exchange Traded Fund (“ETF”) and will be traded on a regulated exchange. The net asset value (“NAV”) per share will not seek to maintain a stable value and is expected to fluctuate with changes in the values of the Fund's portfolio securities and reflecting changes in NAV based on creations and redemptions with Authorized Participants (as defined below). Because the share price and NAV of the Fund will fluctuate, when shares are sold (or redeemed, in the case of an Authorized Participant), they may be worth more or less than what was originally paid for them. You could lose money by investing in the Fund. The Fund is an actively managed ETF that does not seek to replicate the performance of a specified index.
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MMK - Performance

Return Ranking - Trailing

Period MMK Return Category Return Low Category Return High Rank in Category (%)
YTD N/A N/A N/A N/A
1 Yr N/A N/A N/A N/A
3 Yr N/A* N/A N/A N/A
5 Yr N/A* N/A N/A N/A
10 Yr N/A* N/A N/A N/A

* Annualized

Return Ranking - Calendar

Period MMK Return Category Return Low Category Return High Rank in Category (%)
2025 N/A N/A N/A N/A
2024 N/A N/A N/A N/A
2023 N/A N/A N/A N/A
2022 N/A N/A N/A N/A
2021 N/A N/A N/A N/A

Total Return Ranking - Trailing

Period MMK Return Category Return Low Category Return High Rank in Category (%)
YTD N/A N/A N/A N/A
1 Yr N/A N/A N/A N/A
3 Yr N/A* N/A N/A N/A
5 Yr N/A* N/A N/A N/A
10 Yr N/A* N/A N/A N/A

* Annualized

Total Return Ranking - Calendar

Period MMK Return Category Return Low Category Return High Rank in Category (%)
2025 N/A N/A N/A N/A
2024 N/A N/A N/A N/A
2023 N/A N/A N/A N/A
2022 N/A N/A N/A N/A
2021 N/A N/A N/A N/A

MMK - Holdings

Concentration Analysis

MMK Category Low Category High MMK % Rank
Net Assets 25 M N/A N/A N/A
Number of Holdings N/A N/A N/A N/A
Net Assets in Top 10 N/A N/A N/A N/A
Weighting of Top 10 N/A N/A N/A N/A

Top 10 Holdings

Asset Allocation

Weighting Return Low Return High MMK % Rank
Stocks 		0.00% N/A N/A N/A
Preferred Stocks 		0.00% N/A N/A N/A
Other 		0.00% N/A N/A N/A
Convertible Bonds 		0.00% N/A N/A N/A
Cash 		0.00% N/A N/A N/A
Bonds 		0.00% N/A N/A N/A

MMK - Expenses

Operational Fees

MMK Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Expense Ratio 0.18% N/A N/A N/A
Management Fee 0.18% N/A N/A N/A
12b-1 Fee N/A N/A N/A N/A
Administrative Fee N/A N/A N/A N/A

Sales Fees

MMK Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Front Load N/A N/A N/A N/A
Deferred Load N/A N/A N/A N/A

Trading Fees

MMK Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Max Redemption Fee N/A N/A N/A N/A

Related Fees

Turnover provides investors a proxy for the trading fees incurred by mutual fund managers who frequently adjust position allocations. Higher turnover means higher trading fees.

MMK Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Turnover N/A N/A N/A N/A

MMK - Distributions

Dividend Yield Analysis

MMK Category Low Category High MMK % Rank
Dividend Yield 3.57% N/A N/A N/A

Dividend Distribution Analysis

MMK Category Low Category High Category Mod
Dividend Distribution Frequency None

Net Income Ratio Analysis

MMK Category Low Category High MMK % Rank
Net Income Ratio N/A N/A N/A N/A

Capital Gain Distribution Analysis

MMK Category Low Category High Capital Mode
Capital Gain Distribution Frequency

Distributions History

View More +

MMK - Fund Manager Analysis

Tenure Analysis

Category Low Category High Category Average Category Mode
N/A N/A N/A N/A

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