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This ETF's portfolio is entirely dedicated to U.S. government debt. It exclusively holds a variety of securities issued by the U.S. Treasury, including instruments such as Treasury bills, bonds, and notes.
Is JMMF's expense ratio expensive, average, or a steal for its category?
Pro reveals the verdict on a 5-tier spectrum calibrated against ICI 2025 industry averages, with strategy-aware bands so the comparison is meaningful.

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Fund marks the firm's entry into the rapidly evolving money market ETF space NEW YORK , Dec. 11, 2025 /PRNewswire/ -- J.P. Morgan Asset Management today announced the launch of the JPMorgan 100% U.S. Treasury Securities Money Market ETF (JMMF) on the NYSE Arca.