The Investment Company Institute's latest weekly "Money Market Fund Assets" report shows money fund assets jumping by $85.0 billion to a near-record $7.797 trillion, after increasing by $13.0 billion the previous week. Four weeks prior assets were a record $7.804 trillion. Assets have risen in 16 of the last 20 weeks and 24 of the past 29 weeks. MMF assets are up by $879 billion, or 12.8%, over the past 52 weeks (through 2/4/26), with Institutional MMFs up $584 billion, or 14.2% and Retail MMFs up $295 billion, or 10.7%. Year-to-date in 2026, MMF assets are up by $63 billion, or 0.8%, with Institutional MMFs up $64 billion, or 1.4% and Retail MMFs down $1 billion, or -0.0%. ICI's weekly release says, "Total money market fund assets increased by $85.02 billion to $7.80 trillion for the week ended Wednesday, February 4, the Investment Company Institute reported.... Among taxable money market funds, government funds increased by increased by $81.05 billion and prime funds increased by $3.55 billion. Tax-exempt money market funds increased by $412 million." ICI's stats show Institutional MMFs increasing $73.5 billion and Retail MMFs decreasing $11.5 billion in the latest week. Total Government MMF assets, including Treasury funds, were $6.414 trillion (82.2% of all money funds), while Total Prime MMFs were $1.243 trillion (15.9%). Tax Exempt MMFs totaled $142.7 billion (1.8%). It explains, "Assets of retail money market funds increased by $11.48 billion to $3.08 trillion. Among retail funds, government money market fund assets increased by $10.44 billion to $1.95 trillion, prime money market fund assets increased by $957 million to $1.00 trillion, and tax-exempt fund assets increased by $79 million to $129.13 billion." Retail assets account for 39.5% of the total, and Government Retail assets make up 63.3% of all Retail MMFs. They add, "Assets of institutional money market funds increased by $73.54 billion to $4.72 trillion. Among institutional funds, government money market fund assets increased by $70.61 billion to $4.46 trillion, prime money market fund assets increased by $2.59 billion to $242.70 billion, and tax-exempt fund assets increased by $333 million to $13.53 billion." Institutional assets accounted for 60.5% 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 $46.6 billion to a record high $8.188 trillion month-to-date in February (as of 2/4); the previous record high was $8.165 trillion on 1/6. Assets increased by $32.9 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.