ICI's latest weekly "Money Market Fund Assets" report shows money fund assets increasing after fallling the previous week (prior to that they'd hit records for two weeks in a row). Over the past 52 weeks, money fund assets are up by $265 billion, or 5.8%, with Retail MMFs rising by $306 billion (20.8%) and Inst MMFs falling by $41 billion (-1.3%). ICI shows assets up by $80 billion, or 1.7%, year-to-date in 2023, with Institutional MMFs down $23 billion, or -0.8% and Retail MMFs up $103 billion, or 6.2%. The weekly release says, "Total money market fund assets increased by $9.99 billion to $4.82 trillion for the week ended Wednesday, February 15, the Investment Company Institute reported.... Among taxable money market funds, government funds decreased by $4.39 billion and prime funds increased by $14.45 billion. Tax-exempt money market funds decreased by $78 million." ICI's stats show Institutional MMFs falling $2.3 billion and Retail MMFs increasing $12.3 billion in the latest week. Total Government MMF assets, including Treasury funds, were $3.948 trillion (82.0% of all money funds), while Total Prime MMFs were $763.0 billion (15.8%). Tax Exempt MMFs totaled $103.8 billion (2.2%). ICI explains, "Assets of retail money market funds increased by $12.31 billion to $1.78 trillion. Among retail funds, government money market fund assets increased by $1.79 billion to $1.19 trillion, prime money market fund assets increased by $11.09 billion to $497.92 billion, and tax-exempt fund assets decreased by $575 million to $93.72 billion." Retail assets account for over a third of total assets, or 37.0%, and Government Retail assets make up 66.8% of all Retail MMFs. They add, "Assets of institutional money market funds decreased by $2.33 billion to $3.03 trillion. Among institutional funds, government money market fund assets decreased by $6.18 billion to $2.76 trillion, prime money market fund assets increased by $3.36 billion to $265.11 billion, and tax-exempt fund assets increased by $496 million to $10.10 billion." Institutional assets accounted for 63.0% of all MMF assets, with Government Institutional assets making up 90.9% of all Institutional MMF totals. Month-to-date in February (through 2/15/23), money fund assets have increased by $16.6 billion to $5.202 trillion, according to Crane Data's Money Fund Intelligence Daily. (Note that ICI's asset totals don't include a number of funds tracked by the SEC and Crane Data, so they're over $400 billion lower than Crane's asset series.)