Assets of tax-exempt money market funds fell by a modest $150 million as total net assets finished at $286.23 billion in the week ended Nov. 21, according to the Money Fund Report, a service of iMon­eyNet.com.

That was down just slightly from last week, when the funds saw outflows of $530.01 million and total net assets settled at $286.24 trillion.

The average seven-day simple yield for the 472 reporting tax-exempt funds remained at 0.01% for the 12th straight week, while the average maturity remained at 34 days.

The assets of the 1,119 taxable money market funds increased by $9.29 billion and ended with $2.336 trillion in the week ended Nov. 22. That compares with inflows of $600.6 million in the previous week that caused total net assets to increase to $2.327 trillion.

The seven-day yield for the taxable funds remained at 0.02% for the 17th consecutive week, while the average maturity increased one day to 44.

Overall, the combined assets of the 1,591 reporting money funds increased by $9.28 billion and settled at $2.622 trillion in the week ended Nov. 22, compared with inflows of $70.5 million in the previous week, when total net assets finished with $2.613 trillion.

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