US ETF Inflows Hit Record $1.51 Trillion Before Q4

U.S.-listed ETFs have pulled in $1.51 trillion in net inflows so far this year. That already surpasses the industry’s full-year record from 2025, with more than three months still left on the calendar, according to VettaFi flow data as of September 18.

The Vanguard S&P 500 ETF (VOO) alone gathered $147.4 billion, more than any other U.S. fund this year. Global ETF assets crossed $24 trillion for the first time in August, led by Vanguard, iShares, and State Street SPDR.

Three funds, VOO, IVV, and SPY, hold 16.7% of all U.S. ETF assets despite making up just 0.05% of funds.

Todd Rosenbluth, head of research at VettaFi, said the pace shows how central ETFs have become to portfolios. “Crossing the $1 trillion mark was a major calendar year milestone, but now we could cross the $2 trillion threshold in 2026 with a typically strong fourth quarter,” Rosenbluth said. “ETF adoption remains robust for investors with short- and long-term objectives. It is amazing to have a front row seat to see the industry continue to grow.”

The $1.51 trillion haul tops every full year on record, beating 2025’s prior high of $1.49 trillion, VettaFi data shows. The fourth quarter is typically strong for flows, so 2026 could become the industry’s biggest year yet.

Equity funds have driven most of the growth, gathering $990.3 billion in net inflows this year, according to VettaFi data. Fixed income ETFs have pulled in $454.4 billion, as investors lock in yields through short-duration and money-market funds.

The Vanguard S&P 500 ETF (VOO) leads all U.S. funds with $147.4 billion in net inflows, according to VettaFi data, followed by the State Street SPDR Portfolio S&P 500 ETF (SPYM) at $58.7 billion and the Vanguard Morningstar Total Stock Market ETF (VTI) at $50.8 billion.

A single-theme fund is holding its own against more established heavyweights. The Roundhill Memory ETF (DRAM), a thematic play on memory chips, has pulled in $24.6 billion this year — more than the Schwab US Dividend Equity ETF (SCHD) or Vanguard Total Bond Market ETF (BND), VettaFi data shows.

Assets invested in global ETFs topped $24 trillion for the first time in August. The total reached $24.03 trillion, surpassing July’s $23.11 trillion record, according to ETFGI, an independent research firm.

Global net inflows reached a record $1.96 trillion through August, up from $1.27 trillion in 2025 and $1.07 trillion in 2024, ETFGI reported. Global assets have climbed 21.3% since the end of 2025, when they stood at $19.84 trillion.

iShares remains the largest global provider with $6.55 trillion in assets, or 27.3% of the total. The firm gathered $410.51 billion in net inflows through August, ETFGI found. Vanguard ranks second with $5.18 trillion, or 21.6% of global assets. The firm led all providers in August and year-to-date flows, with a record $440.69 billion gathered through August, ETFGI found.

Together with State Street SPDR, the three largest providers control $14.08 trillion, or 58.7% of global ETF assets. The trio also captured just over half of the industry’s inflows through August, according to ETFGI.

Commodities ETFs globally gathered $34.09 billion through August, below the $52.64 billion collected through August 2025. Active ETFs told a different story, pulling in $663.59 billion through August. That’s nearly double the $375.98 billion gathered over the same period last year, ETFGI data revealed.

U.S. ETF assets alone reached $16.36 trillion at the end of August. That surpasses the previous record of $15.78 trillion set in June, according to ETFGI. Year-to-date net inflows through August totaled $1.41 trillion, according to ETFGI. That’s up $611.23 bill...