Assets of the nation's money market mutual funds stood at $933.67 billion last Wednesday, down from $940.20 billion the previous week.
Retail money market mutual funds reported an asset increase of $2.80 billion, to $626.27 billion, in the most recent week, according to the Investment Company Institute.
Assets of the 395 taxable retail funds grew by $3.66 billion, to $511.24 billion, but assets of 258 tax-exempt funds fell by $860.7 million, to $115.03 billion, the Washington-based trade association said.
Institutional funds, meanwhile, reported that their assets had slipped $9.33 billion last week, to $307.40 billion, according to the institute. The 256 taxable funds in the group lost $8.51 billion of assets, ending Wednesday with $276.60 billion.