ETF Inflows Hit $725 Billion YTD as DRAM Stays Hot

U.S.-listed ETFs gathered $61.1 billion in net inflows during the week ending Friday, May 15, pushing year-to-date inflows to nearly $725 billion.

U.S. equity ETFs led the way with $23.5 billion of inflows, followed closely by international equity ETFs at $19.4 billion. Fixed-income ETFs added another $13.4 billion.

Currency ETFs were the lone major asset class to post outflows, shedding $847 million.

Stocks continued to hit record highs last week while bond ETFs moved in the opposite direction. The yield on the 30-year Treasury bond climbed to a 19-year high amid concerns about inflation and rising government debt levels, pressuring long-duration bond funds.

Among individual ETFs, the ARK Innovation ETF (ARKK) topped the inflow leaderboard with $5.9 billion in creations. The move appeared unusual given the ETF’s recent performance. ARKK has lagged in 2026 with a 4.3% loss on the year, suggesting the inflows may have reflected a heartbeat trade rather than a sudden surge in investor demand.

One fund that does appear to be seeing sustained investor interest is the Roundhill Memory ETF (DRAM), which pulled in another $3.6 billion last week. According to FactSet data, the ETF now holds $10.4 billion in assets under management, making it the fastest ETF on record to surpass the $10 billion mark—just six weeks after launch.

Broader technology-focused funds were also in high demand. The Invesco QQQ Trust (QQQ) gathered $5.9 billion of inflows during the week, while the Invesco NASDAQ 100 ETF (QQQM) added $1.5 billion.

On the outflows side, the SPDR Dow Jones Industrial Average ETF Trust (DIA), the Schwab Fundamental U.S. Large Company ETF (FNDX) and the Schwab Fundamental U.S. Small Company ETF (FNDA) led the list.

For a full breakdown of last week’s top inflows and outflows, see the tables below.