The Investment Company Institute's latest weekly "Money Market Fund Assets" report shows money fund assets jumping $47.7 billion to a record $7.948 trillion, after falling $18.9 billion the previous week. MMF assets are up by $870 billion, or 12.3%, over the past 52 weeks (through 7/1/26), with Institutional MMFs up $691 billion, or 16.6% and Retail MMFs up $179 billion, or 6.1%. Year-to-date in 2026, MMF assets are up by $215 billion, or 2.8%, with Institutional MMFs up $205 billion, or 4.4% and Retail MMFs up $10 billion, or 0.3%. ICI's weekly release says, "Total money market fund assets increased by $47.71 billion to $7.95 trillion for the week ended Wednesday, July 1, the Investment Company Institute reported.... Among taxable money market funds, government funds increased by $34.11 billion and prime funds increased by $11.36 billion. Tax-exempt money market funds increased by $2.24 billion.” ICI's stats show Institutional MMFs increasing $44.1 billion and Retail MMFs increasing $3.6 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.556 trillion (82.5% of all money funds), while Total Prime MMFs were $1.241 trillion (15.6%). Tax Exempt MMFs totaled $150.9 billion (1.9%). It explains, "Assets of retail money market funds increased by $3.60 billion to $3.09 trillion. Among retail funds, government money market fund assets increased by $1.12 billion to $1.96 trillion, prime money market fund assets increased by $1.25 billion to $986.34 billion, and tax-exempt fund assets increased by $1.23 billion to $136.88 billion." Retail assets account for 38.8% of the total, and Government Retail assets make up 63.6% of all Retail MMFs. They add, "Assets of institutional money market funds increased by $44.11 billion to $4.86 trillion. Among institutional funds, government money market fund assets increased by $32.99 billion to $4.59 trillion, prime money market fund assets increased by $10.11 billion to $254.86 billion, and tax-exempt fund assets increased by $1.01 billion to $13.99 billion." Institutional assets accounted for 61.2% of all MMF assets, with Government Institutional assets making up 94.5% of all institutional MMF totals. According to Crane Data's separate Money Fund Intelligence Daily series, money fund assets have increased by $35.0 billion to a record high $8.385 trillion month-to-date in July (as of 7/1). Assets increased $58.6 billion in June, $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 last July. 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.