Investors have invested more than US$100 billion in ETFs every month for 14 consecutive months
Investors have injected more than US$100 billion in exchange-traded funds (ETFs) every month for 14 consecutive months. Eric Balchunas, an analyst at Bloomberg Industry Research ETF, said this trend was almost unimaginable a few years ago.
Balchunas quoted a chart shared by colleague Asanasios Psalofakis on Thursday as saying: "ETFs have attracted more than 100 billion dollars in inflows for 14 consecutive months. In previous records, there was only once a monthly inflow of more than 100 billion US dollars. "
This monthly ETF funds flow chart shows that this milestone is rapidly turning from an anomaly to a normal one. According to Balchunas analysis, about two and a half years before the current continuous growth trend began, there was a single monthly inflow of hundreds of billions of dollars.
As ETFs continue to rise in investor portfolios, the inflow of funds continues to expand. As of the end of May, global ETF assets reached a record high of US$23.08 trillion, and net inflows in the first five months of 2026 reached US$1.07 trillion. In the U.S. market alone, ETF assets reached US$15.6 trillion in May, an increase of 42% over the same period last year. The growth range covers stocks, bonds, and commodity ETFs, and the proportion of actively managed products is also increasing.
Cryptocurrency ETFs become new engine of industry growth
While traditional equity and bond funds still account for the majority of ETF assets, cryptocurrencies are becoming an increasingly important part of the industry's growth story. The asset size of Bitcoin ETFs may eventually surpass that of gold ETFs. Balchunas previously predicted that the U.S. spot Bitcoin ETF is expected to hold assets three times the size of the gold ETF within three to five years.
"It took more than a decade for the gold ETF to reach its current size, while the Bitcoin ETF achieved this goal in just a few months. "Balchunas attributes this rapid adoption in part to product accessibility-investors can directly configure Bitcoin ETFs through traditional brokerage accounts, without having to open an account on a cryptocurrency exchange or manage a digital wallet and private key.
Data shows that the cumulative net inflow of the U.S. spot Bitcoin ETF launched in January 2024 was approximately US$52.3 billion as of August 14. Balchunas pointed out that increased institutional participation and a more friendly regulatory environment in the United States will serve as potential catalysts for further popularization.
This trend has gone beyond Bitcoin. The Ethereum Spot ETF, which was launched in the United States in July 2024, also attracted investor funds, and regulators subsequently opened up market space for a wider range of cryptocurrency-related investment products.

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