Fund screener · SPDR

MMK: State Street® Prime Money Market ETF

ETF

Fixed Income

State Street® Prime Money Market ETF (MMK) is a SPDR ETF with a 0.18% expense ratio and $32MM in net assets.

Fee

0.18%

expense ratio

Net assets

$32MM

Launched

Feb 10, 2026

Holdings

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no holdings data

Top 10 weight

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largest ten holdings

Largest sector

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Yield

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Benchmark

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Performance

Sector breakdown

No sector breakdown for this fund: its holdings are bonds, commodities or other assets without a sector, or we don't have its holdings.

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Data from SPDR; prices and returns from market data. Page updated October 29, 2026. Holdings and figures change over time. For information only — not investment advice.