The ICI's latest "Money Market Fund Assets" release says, "Total money market fund assets decreased by $3.89 billion to $2.58 trillion for the week ended Wednesday, May 21, the Investment Company Institute reported today. Among taxable money market funds, treasury funds (including agency and repo) increased by $4.21 billion and prime funds decreased by $8.79 billion. Tax-exempt money market funds increased by $690 million. Assets of retail money market funds increased by $660 million to $904.59 billion. Treasury money market fund assets in the retail category increased by $390 million to $201.45 billion, prime money market fund assets decreased by $120 million to $515.67 billion, and tax-exempt fund assets increased by $390 million to $187.47 billion. Assets of institutional money market funds decreased by $4.55 billion to $1.68 trillion. Among institutional funds, treasury money market fund assets increased by $3.83 billion to $715.49 billion, prime money market fund assets decreased by $8.67 billion to $892.54 billion, and tax-exempt fund assets increased by $290 million to $71.23 billion."