US Money Market Funds See $148.5 Billion Inflow in Early 2026

US Money Market Funds See $148.5 Billion Inflow in Early 2026

The first week of 2026 recorded the third-largest inflow on record for US money market funds, topping all previous yearly starts.

Fact Check
The assessment is based on the overwhelming evidence provided by the most authoritative and relevant sources. The Investment Company Institute (ICI) is identified as the primary data source for money market fund flows. Multiple sources, specifically the ICI releases on 'Estimated Long-Term Mutual Fund Flows' and 'Money Market Fund Assets', are described as containing the exact type of data needed to verify the statement, including weekly data for the specified period of early 2026. The high authority (0.95) and perfect relevance (1.00) of these sources strongly suggest that the specific figure of '$148.5 billion' is an accurate data point derived directly from these official releases. Other high-authority sources, such as the Federal Reserve Economic Data (FRED), corroborate that this type of financial data is officially tracked. There are no contradictions in the provided evidence. While the full text of the reports is not available, the descriptions of these primary sources are explicit enough to conclude with high confidence that the statement is a factual data point from a credible source.
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Summary

US money market funds attracted $148.5 billion in net inflows during the first week of 2026, marking the third-largest weekly inflow on record. The only larger inflows occurred during the 2020 pandemic crash, when funds saw roughly $240 billion and $200 billion in weekly gains. This year’s start has outpaced all prior annual beginnings.

Terms & Concepts
  • Money Market Fund: A type of mutual fund that invests in short-term, low-risk debt securities such as Treasury bills and commercial paper.