ICI's latest "Money Market Fund Assets" report shows Prime assets with their strongest showing since MMF reforms, rising $5.5 billion and breaking over the $400 billion barrier. It says, "Total money market fund assets increased by $1.63 billion to $2.64 trillion for the week ended Wednesday, May 3, the Investment Company Institute reported today. Among taxable money market funds, government funds decreased by $5.01 billion and prime funds increased by $5.52 billion. Tax-exempt money market funds increased by $1.12 billion." Total Government MMF assets, which include Treasury funds too, stand at $2.111 trillion (79.8% of all money funds), while Total Prime MMFs stand at $403.7 billion (15.3%). Tax Exempt MMFs total $128.9 billion, or 4.9%. It explains, "Assets of retail money market funds increased by $2.90 billion to $969.17 billion. Among retail funds, government money market fund assets increased by $1.84 billion to $593.55 billion, prime money market fund assets increased by $340 million to $251.98 billion, and tax-exempt fund assets increased by $720 million to $123.64 billion." Retail assets account for over a third of total assets, or 36.7%, and Government Retail assets make up 61.2% of all Retail MMFs. The release continues, "Assets of institutional money market funds decreased by $1.27 billion to $1.67 trillion. Among institutional funds, government money market fund assets decreased by $6.85 billion to $1.52 trillion, prime money market fund assets increased by $5.18 billion to $151.67 billion, and tax-exempt fund assets increased by $400 million to $5.29 billion." Institutional assets account for 63.3% of all MMF assets, with Government Inst assets making up 90.6% of all Institutional MMFs.