The Investment Company Institute's latest weekly "Money Market Fund Assets" report shows money fund assets decreasing by $15.7 billion to $7.522 trillion after reaching a record high of $7.536 trillion the week prior. Assets have risen in 7 of the last 9 weeks, and 15 of the past 18 weeks. MMFs rose $2.7 billion last week, after increasing $116.4 billion two weeks ago. MMF assets are up by $873 billion, or 13.1%, over the past 52 weeks (through 11/19/25), with Institutional MMFs up $512 billion, or 12.9% and Retail MMFs up $362 billion, or 13.5%. Year-to-date, MMF assets are up by $671 billion, or 9.8%, with Institutional MMFs up $374 billion, or 9.1% and Retail MMFs up $297 billion, or 10.9%. ICI's weekly release says, "Total money market fund assets decreased by $15.74 billion to $7.52 trillion for the week ended Wednesday, November 19, the Investment Company Institute reported.... Among taxable money market funds, government funds decreased by $14.14 billion and prime funds decreased by $1.83 billion. Tax-exempt money market funds increased by $224 million." ICI's stats show Institutional MMFs decreasing $25.1 billion and Retail MMFs increasing $9.3 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.166 trillion (82.0% of all money funds), while Total Prime MMFs were $1.211 trillion (16.1%). Tax Exempt MMFs totaled $143.9 billion (1.9%). It explains, "Assets of retail money market funds increased by $9.34 billion to $3.03 trillion. Among retail funds, government money market fund assets increased by $7.86 billion to $1.91 trillion, prime money market fund assets increased by $1.15 billion to $991.94 billion, and tax-exempt fund assets increased by $331 million to $131.80 billion." Retail assets account for 40.3% of the total, and Government Retail assets make up 62.9% of all Retail MMFs. They add, "Assets of institutional money market funds decreased by $25.09 billion to $4.49 trillion. Among institutional funds, government money market fund assets decreased by $22.00 billion to $4.26 trillion, prime money market fund assets decreased by $2.98 billion to $219.42 billion, and tax-exempt fund assets decreased by $107 million to $12.10 billion." Institutional assets accounted for 59.7% of all MMF assets, with Government Institutional assets making up 94.8% of all institutional MMF totals. According to Crane Data's separate Money Fund Intelligence Daily series, money fund assets have increased by $50.4 billion to $7.900 trillion month-to-date in November (as of 11/19). They hit a record high of $7.931 trillion on November 13, but have dipped since. Assets increased by $142.1 billion in October, $105.2 billion in September and $132.0 billion in August. They rose $63.7 billion in July, $6.7 billion in June and $100.9 billion in May. MMFs fell by $24.4 billion in April, but rose $2.8 trillion in March, $94.2 billion in February and $52.8 billion in January. They jumped $110.9 billion in December, $200.5 billion last November. Note that ICI's asset totals don't include a number of funds tracked by the SEC and Crane Data, so they're almost $400 billion lower than Crane's asset series.
