For the first time in months, stock funds beat out fixed income in inflows, according to the latest data from the folks at a mutual fund industry trade group.

Today, the Investment Company Institute (ICI) team reports that an estimated $48.762 billion net flowed into ETFs and long-term, open-end mutual funds in the week ended December 30, 2025. (Money-market funds and funds-of-funds, as well as non-'40-Act asset management products like collective trusts and separate accounts, are not included.) That's up by $28.191 billion week-over-week from the six days ended on December 23*.

Traditional, long-term, open-end mutual funds suffered an estimated $4.9 billion in net outflows in the week ended December, according to the ICI folks, down by $22.29 billion W/W. Meanwhile, ETFs brought in an estimated $53.662 billion in net inflows, up by $5.901 billion W/W.

Equity funds took the lead last week. Per ICI's data, an estimated $32.677 billion net flowed into stock funds and ETFs in the week ended December 30 (up by $29.473 billion W/W). $29.308 billion of that (up by $31.274 billion W/W) flowed into domestic equity funds and ETFs, while $3.369 billion (down by $1.801 billion W/W) flowed into world equity funds and ETFs.

Bond funds and ETFs brought in an estimated $15.97 billion in net inflows for the week ended December 30 (up by $860 million W/W). $14.183 billion of that (up by $962 million W/W) flowed into taxable bond funds and ETFs, while $1.787 billion (up by $598 million W/W) flowed into municipal bond funds and muni ETFs.

Commodity funds (well, ETFs) brought in an estimated $1.159 billion in net inflows in the week ended December 30. That's down by $2.161 billion W/W.

On the flip side, hybrid funds and ETFs suffered an estimated $1.044 billion in net outflows for the week ended December 30. That's down by $20 million W/W.

*Editor's Note: The ICI folks note that they also regularly revise the past weeks' flows data, "because of adjustments, reclassifications, and changes in the number of funds reporting." Thus, the week-to-week flows changes may not quite line up perfectly with the numbers in MFWire's coverage of prior weeks' flows. 

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