Total U.S. money market mutual fund assets fell $510 million to $2.582 trillion for the week that ended Wednesday, the Investment Company Institute said Thursday.
Assets of the nation's retail money market mutual funds fell $10.11 billion to $892.79 billion, the Washington-based mutual fund trade group said. Assets of taxable money market funds in the retail category fell $6.47 billion to $705.23 billion. Tax-exempt retail fund assets fell $3.63 billion to $187.56 billion.
Meanwhile, assets of institutional money market funds rose $9.60 billion to $1.690 trillion. Among institutional funds, taxable money market fund assets rose $10.28 billion to $1.603 trillion; assets of tax-exempt funds fell $680 million to $86.90 billion.
The seven-day average yield on money market mutual funds was 0.03 percent in the week that ended Tuesday, unchanged from the previous week, said Money Fund Report, a service of iMoneyNet Inc. in Westborough, Mass.
The 30-day average yield was also unchanged from last week at 0.03 percent. The seven-day compounded yield was flat at 0.03 percent. The 30-day compounded yield was unchanged at 0.03 percent, Money Fund Report said.
The average maturity of portfolios held by money market mutual funds rose to 46 days from 45 days in the previous week.
The online service Bankrate.com said its survey of 100 leading commercial banks, savings and loan associations and savings banks in the nation's 10 largest markets showed the annual percentage yield available on money market accounts was unchanged from last week at 0.13 percent.
The North Palm Beach, Fla.-based unit of Bankrate Inc. said the annual percentage yield available on interest-bearing checking accounts was unchanged from the week before at 0.06 percent.
Bankrate.com said the annual percentage yield on six-month certificates of deposit was unchanged from the previous week at 0.22 percent. The yield on one-year CDs was also unchanged at 0.33 percent. It was flat at 0.52 percent on two-and-a-half-year CDs. It fell to 1.13 percent from 1.14 percent on five-year CDs.