After tax-exempt money market funds last week experienced their largest weekly inflows year to date, seeing a one-week increase of 1.9%, assets this week fell by $157.4 million and settled at $289.78 billion for the week ended Dec. 12, according to the Money Fund Report, a service of iMoneyNet.com.

Last week’s stunning inflows of $5.27 billion had left the funds with $289.94 billion. That highlighted a year in which inflows have been few and far between amid an 11.7% decrease in tax-exempt assets year to date.

This week, the average, seven-day simple yield for the 468 tax-exempt reporting funds was unchanged at 0.01% for the 15th consecutive week.

Among the 1,115 taxable money funds reporting, total net assets rose by $14.30 billion and finished at $2.376 trillion for the week ended Dec. 13. In the previous week, $7.01 billion of inflows caused total net assets to rise to $2.362 trillion in the week ended Dec. 5.

The average, seven-day simple yield for the taxable funds remained at 0.02% for the 20th week straight, while the average maturity increased one day to 44 days.

Overall, the combined assets of the 1,583 reporting money funds rose by $14.14 billion to $2.666 trillion in the week ended Dec. 13, versus $2.652 trillion the week before, following $12.28 billion of inflows.

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