Total assets of money market mutual funds fell by $8.36 billion to $3.319 trillion for the week ending Dec. 2 as retail and institutional investors sought out greater yields, according to the Investment Company Institute.

Retail money market fund assets lost $3.87 billion to settle at $1.078 trillion. Among retail money funds, taxable assets fell $4.18 billion to $840.71 billion, while tax-exempt fund assets climbed by $210 million to $236.93 billion.

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