ICI: Assets Plunge in Latest Week
The Investment Company Institute published its weekly "Money Market Fund Assets" report Thursday, which shows money fund assets decreasing by $53.0 billion to $7.803 trillion, after rising by $38.7 billion to a record high $7.856 trillion the previous week. Assets have risen in 21 of the last 27 weeks and 29 of the past 36 weeks. MMF assets are up by $789 billion, or 11.3%, over the past 52 weeks (through 3/25/26), with Institutional MMFs up $546 billion, or 13.2% and Retail MMFs up $243 billion, or 8.5%. Year-to-date in 2026, MMF assets are up by $70 billion, or 0.9%, with Institutional MMFs up $38 billion, or 0.8% and Retail MMFs up $32 billion, or 1.0%. ICI's weekly release says, "Total money market fund assets decreased by $53.01 billion to $7.80 trillion for the week ended Wednesday, March 25, the Investment Company Institute reported.... Among taxable money market funds, government funds decreased by $58.25 billion and prime funds increased by $4.27 billion. Tax-exempt money market funds increased by $968 million." ICI's stats show Institutional MMFs decreasing $59.4 billion and Retail MMFs increasing $6.4 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.411 trillion (82.2% of all money funds), while Total Prime MMFs were $1.248 trillion (16.0%). Tax Exempt MMFs totaled $144.1 billion (1.8%). It explains, "Assets of retail money market funds increased by $6.41 billion to $3.11 trillion. Among retail funds, government money market fund assets increased by $5.38 billion to $1.97 trillion, prime money market fund assets decreased by $192 million to $1.01 trillion, and tax-exempt fund assets increased by $1.22 billion to $130.97 billion." Retail assets account for 39.9% of the total, and Government Retail assets make up 63.4% of all Retail MMFs. They add, "Assets of institutional money market funds decreased by $59.42 billion to $4.69 trillion. Among institutional funds, government money market fund assets decreased by $63.63 billion to $4.44 trillion, prime money market fund assets increased by $4.46 billion to $241.67 billion, and tax-exempt fund assets decreased by $253 million to $13.14 billion." Institutional assets accounted for 60.1% of all MMF assets, with Government Institutional assets making up 94.6% of all institutional MMF totals. According to Crane Data's separate Money Fund Intelligence Daily series, money fund assets have decreased by $300 million to $8.241 trillion month-to-date in March (as of 3/25), assets hit a record high on March 18 of $8.280 trillion. (Our asset series previous record high, $8.276 trillion, was set on 3/17/26.) Assets increased by $99.5 billion in February, $32.9 billion in January, $126.3 billion in December, $132.8 billion in November, $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 last March. 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.
