ICI: Assets Eke Out Record $7.8 Tril.
The Investment Company Institute published its weekly "Money Market Fund Assets" on Thursday. The report shows money fund assets increasing by $0.8 billion to a record high $7.818 trillion, after rising by $20.1 billion the previous week. The week prior, assets hit their previous record $7.817 trillion. Assets have risen in 20 of the last 25 weeks and 28 of the past 34 weeks. MMF assets are up by $794 billion, or 11.3%, over the past 52 weeks (through 3/11/26), with Institutional MMFs up $559 billion, or 13.4% and Retail MMFs up $234 billion, or 8.2%. Year-to-date in 2026, MMF assets are up by $84 billion, or 1.1%, with Institutional MMFs up $69 billion, or 1.5% and Retail MMFs up $15 billion, or 0.5%. ICI's weekly release says, "Total money market fund assets increased by $774 million to $7.82 trillion for the week ended Wednesday, March 11, the Investment Company Institute reported.... Among taxable money market funds, government funds decreased by $1.73 billion and prime funds increased by $3.06 billion. Tax-exempt money market funds decreased by $559 million." ICI's stats show Institutional MMFs decreasing $9.8 billion and Retail MMFs increasing $10.6 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.429 trillion (82.2% of all money funds), while Total Prime MMFs were $1.247 trillion (16.0%). Tax Exempt MMFs totaled $141.6 billion (1.8%). It explains, "Assets of retail money market funds increased by $10.57 billion to $3.09 trillion. Among retail funds, government money market fund assets increased by $7.38 billion to $1.96 trillion, prime money market fund assets increased by $3.61 billion to $1.00 trillion, and tax-exempt fund assets decreased by $415 million to $128.56 billion." Retail assets account for 39.6% 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 $9.80 billion to $4.73 trillion. Among institutional funds, government money market fund assets decreased by $9.11 billion to $4.47 trillion, prime money market fund assets decreased by $548 million to $242.50 billion, and tax-exempt fund assets decreased by $144 million to $13.06 billion." Institutional assets accounted for 60.4% 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 increased by $1.3 billion to $8.242 trillion month-to-date in March (as of 3/11), assets hit a record high on March 3 of $8.271 trillion. (Our asset series previous record high, $8.253 trillion, was set on 3/2/26.) 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 in March and $94.2 billion last February. 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.
