ICI: MMF Assets Inch Higher in Week
The Investment Company Institute published its weekly "Money Market Fund Assets" report Thursday, which shows money fund assets increasing by $8.0 billion to $7.819 trillion, after increasing by $7.6 billion the previous week and rising by $38.7 billion to a record high $7.856 trillion three weeks prior. Assets have risen in 23 of the last 29 weeks and 31 of the past 38 weeks. MMF assets are up by $813 billion, or 11.6%, over the past 52 weeks (through 4/8/26), with Institutional MMFs up $578 billion, or 14.0% and Retail MMFs up $235 billion, or 8.2%. Year-to-date in 2026, MMF assets are up by $86 billion, or 1.1%, with Institutional MMFs up $51 billion, or 1.1% and Retail MMFs up $34 billion, or 1.1%. ICI's weekly release says, "Total money market fund assets increased by $7.96 billion to $7.82 trillion for the week ended Wednesday, April 8, the Investment Company Institute reported.... Among taxable money market funds, government funds increased by $9.68 billion and prime funds decreased by $939 million. Tax-exempt money market funds decreased by $777 million." ICI's stats show Institutional MMFs increasing $13.3 billion and Retail MMFs decreasing $5.3 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.428 trillion (82.2% of all money funds), while Total Prime MMFs were $1.245 trillion (15.9%). Tax Exempt MMFs totaled $145.3 billion (1.9%). It explains, "Assets of retail money market funds decreased by $5.29 billion to $3.11 trillion. Among retail funds, government money market fund assets decreased by $2.39 billion to $1.97 trillion, prime money market fund assets decreased by $2.77 billion to $1.01 trillion, and tax-exempt fund assets decreased by $129 million to $132.10 billion." Retail assets account for 39.8% of the total, and Government Retail assets make up 63.4% of all Retail MMFs. They add, "Assets of institutional money market funds increased by $13.25 billion to $4.71 trillion. Among institutional funds, government money market fund assets increased by $12.07 billion to $4.45 trillion, prime money market fund assets increased by $1.83 billion to $239.33 billion, and tax-exempt fund assets decreased by $648 million to $13.22 billion." Institutional assets accounted for 60.2% 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 $71.4 billion to $8.263 trillion month-to-date in April (as of 4/8), 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 decreased by $49.3 billion in March, increased $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, but fell by $24.4 billion last April. 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.
