The Investment Company Institute's latest weekly "Money Market Fund Assets" report shows money fund assets jumping $114.5 billion to a record high $8.016 trillion. Assets decreased $43.3 billion the previous week and increased $21.5 billion the week before this. The previous record high of $7.979 trillion was seen nine weeks ago. MMF assets are up by $481 billion, or 6.4%, over the past 52 weeks (through 11/4/26), with Institutional MMFs up $380 billion, or 8.4% and Retail MMFs up $101 billion, or 3.3%. Year-to-date in 2026, MMF assets are up by $282 billion, or 3.7%, with Institutional MMFs up $241 billion, or 5.2% and Retail MMFs up $42 billion, or 1.4%. ICI's weekly release says, "Total money market fund assets increased by $114.46 billion to $8.02 trillion for the week ended Wednesday, November 4, the Investment Company Institute reported.... Among taxable money market funds, government funds increased by $117.80 billion and prime funds decreased by $4.03 billion. Tax-exempt money market funds increased by $693 million." ICI's stats show Institutional MMFs increasing $102.3 billion and Retail MMFs increasing $12.2 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.622 trillion (82.6% of all money funds), while Total Prime MMFs were $1.232 trillion (15.4%). Tax Exempt MMFs totaled $161.8 billion (2.0%). It explains, "Assets of retail money market funds increased by $12.21 billion to $3.12 trillion. Among retail funds, government money market fund assets increased by $9.93 billion to $1.99 trillion, prime money market fund assets increased by $1.15 billion to $985.76 billion, and tax-exempt fund assets increased by $1.13 billion to $146.35 billion." Retail assets account for 38.9% 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 $102.25 billion to $4.90 trillion. Among institutional funds, government money market fund assets increased by $107.87 billion to $4.64 trillion, prime money market fund assets decreased by $5.18 billion to $245.84 billion, and tax-exempt fund assets decreased by $438 million to $15.41 billion." Institutional assets accounted for 61.1% of all MMF assets, with Government Institutional assets making up 94.7% of all institutional MMF totals. According to Crane Data's separate Money Fund Intelligence Daily series, money fund assets have increased by $89.0 billion to a record high $8.447 trillion month-to-date in November (as of 11/4), the previous record high was seen the day before (11/3) at $8.432 trillion and prior to that assets reached an all-time high of $8.404 trillion on July 6. Assets increased $64.4 billion in October, decreased $48.0 billion in September, increased $52.8 billion in August, decreased $61.4 billion in July, 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 and $132.8 billion last November. 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.