Assets of money market mutual funds jumped 2.38%, to $1.3987 trillion, in the week that ended Jan. 6, the Investment Company Institute reported.

The across-the-board rise was concentrated in portfolios for institutional investors. Assets of these funds rose 3.66%, to $568.98 billion. That includes $519.18 billion in taxable funds, up $17.10 billion, and $49.80 billion in tax-exempt funds, down $2.98 billion.

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