MMFs Jump to New Record in June
The Investment Company Institute's latest weekly "Money Market Fund Assets" report shows money fund assets rising $109.3 billion to a new record high of $7.894 trillion, after they increased $13.4 billion the previous week. MMF assets are up by $878 billion, or 12.5%, over the past 52 weeks (through 6/3/26), with Institutional MMFs up $666 billion, or 16.1% and Retail MMFs up $212 billion, or 7.3%. Year-to-date in 2026, MMF assets are up by $161 billion, or 2.1%, with Institutional MMFs up $138 billion, or 3.0% and Retail MMFs up $23 billion, or 0.8%. ICI's weekly release says, "Total money market fund assets increased by $109.25 billion to $7.89 trillion for the week ended Wednesday, June 3, the Investment Company Institute reported.... Among taxable money market funds, government funds increased by $102.96 billion and prime funds increased by $7.96 billion. Tax-exempt money market funds decreased by $1.68 billion." ICI's stats show Institutional MMFs increasing $101.2 billion and Retail MMFs increasing $8.1 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.510 trillion (82.5% of all money funds), while Total Prime MMFs were $1.238 trillion (15.7%). Tax Exempt MMFs totaled $146.2 billion (1.9%). It explains, "Assets of retail money market funds increased by $8.10 billion to $3.10 trillion. Among retail funds, government money market fund assets increased by $6.94 billion to $1.98 trillion, prime money market fund assets increased by $3.00 billion to $991.56 billion, and tax-exempt fund assets decreased by $1.85 billion to $133.07 billion." Retail assets account for 39.3% of the total, and Government Retail assets make up 63.7% of all Retail MMFs. They add, "Assets of institutional money market funds increased by $101.15 billion to $4.79 trillion. Among institutional funds, government money market fund assets increased by $96.02 billion to $4.53 trillion, prime money market fund assets increased by $4.96 billion to $245.94 billion, and tax-exempt fund assets increased by $170 million to $13.12 billion." Institutional assets accounted for 60.7% 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 $42.3 billion to $8.334 trillion month-to-date in June (as of 6/3), assets hit a record high on June 2 of $8.334 trillion. Assets increased $208.6 billion in May, decreased by $108.8 billion in April, $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 and $6.7 billion last June. 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.
