Flows into stock funds climbed last week, more than making up for dips in bond and commodity fund flows, according to the latest data from the folks at a mutual fund industry trade group.

Today, the Investment Company Institute (ICI) team reported that an estimated $13.402 billion net flowed into ETFs and long-term, open-end mutual funds in the week ended December 10, 2025. (Money-market funds and funds-of-funds, as well as non-'40-Act asset management products like CITs and separate accounts, are not included.) That's a $2.199-billion net flows jump week-over-week from the week ended on December 3*, and it extends the industry's inflows streak to 18 weeks and counting.

Traditional, long-term, open-end mutual funds suffered an estimated $30.531 billion in net outflows for the week ended December 10, according to the ICI folks, up by $11.352 billion W/W. Meanwhile, ETFs brought in an estimated $43.573 billion in net inflows, up by $13.191 billion W/W.

Fixed income led industry inflows yet again last week. Per ICI's data, an estimated $9.984 billion net flowed into bond funds and ETFs in the week ended December 10 (down by $540 million W/W). $8.606 billion of that (down by $1.264 billion W/W) flowed into taxable bond funds and ETFs, while $1.379 billion (up by $725 million W/W) flowed into municipal bond funds and muni ETFs.

Equity funds and ETFs brought in an estimated $3.204 billion in net inflows in the week ended December 10 (up by $3.037 billion W/W). Domestic equity funds and ETFs brought in an estimated $550 million in net inflows (up by $3.883 billion W/W), while world equity funds and ETFs brought in an estimated $2.654 billion in net inflows (down by $847 million W/W).

Commodity funds (well, ETFs) brought in an estimated $1.539 billion in net inflows in the week ended December 10. That's down by $974 million W/W.

On the flip side, hybrid funds and ETFs suffered an estimated $1.685 billion in net outflows last week. That's down by $317 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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