Bitcoin & Ethereum ETFs Surge With $1B+ Inflows In May 2025

Key Insights:

  • Bitcoin and Ethereum ETFs collectively recorded over $1 billion in daily inflows last week.
  • This is the highest combined total in five months, in a show of increasing investor interest.
  • BlackRock’s iShares Bitcoin Trust (IBIT) led Bitcoin ETF inflows with $877 million in a single day.

The cryptocurrency market is heating up once again, and exchange-traded funds (or ETFs) are taking all the action.

By the close of last week, Bitcoin and Ethereum ETFs collectively recorded more than $1 billion in daily inflows. This stands as the highest combined total in five months and shows that investors are ramping up their appetites for crypto-backed investment products.

Here’s a breakdown of the drivers behind this influx and what it means for the crypto market as a whole.

Bitcoin ETFs Drive the Majority of Inflows

BlackRock’s iShares Bitcoin Trust (IBIT) led the pack over the last week, with a staggering $877 million in a single day. According to data from Farside Investors, this is the fund’s third-largest daily inflow since its launch.

In total, Bitcoin ETFs saw an impressive $935 million on Thursday, which stands as the lion’s share of the day’s activity.

Inflows into the Bitcoin ETFs
Inflows into the Bitcoin ETFs | Source: Farside

Further down the rabbit hole, IBIT added over $1.9 billion just in the first four days of the previous week.  This stands as the third time in a month that it has crossed the billion-dollar inflow mark on the weekly timeframe.

This comes after a previous record of $2.4 billion and $1 billion during the weeks of 28 April and 5 May, respectively.

It should be noted that since its launch in January 2024, IBIT has amassed nearly $41 billion in total inflows. This dwarfs its closest competitor (Fidelity’s FBTC) by a wide margin, considering how Fidelity’s offering has only taken in about a quarter of that.

Ethereum ETFs Also Gaining Ground

While Bitcoin continues to hold investor attention, Ethereum is quietly building its speed.

The Ethereum-based products pulled in over $110 million on Thursday of last week, with the Grayscale Ethereum Trust (ETHE) and Fidelity Ethereum Trust (FETH) leading the way with more than $40 million in inflows.

Ethereum’s price performance has also improved, even though it initially lagged behind Bitcoin.

Ethereum ETf inflows
Ethereum ETf inflows | Source: Farside

Ethereum is currently up by around 46% in the past month in terms of price, and is now trading somewhere around $2,565 after dipping slightly at the end of the week.

According to analysts, the sluggish performance of the Ethereum ETF market might have been due to Ethereum’s intraday 3.5% drop on Thursday.

According to Bloomberg ETF analyst James Seyffart,

Despite this, BlackRock’s iShares Ethereum Trust (ETHA) has been a major performer and has pulled in over $4.3 billion in net inflows (more than double its nearest competitor).

Overall, the eight Ethereum ETFs currently on the market have seen more than $2.7 billion in net inflows this year, though Grayscale’s ETHE has posted $4.3 billion in outflows due to its higher fees.

Record-Breaking Year for Crypto ETPs

Zooming out, 2025 is is more and more becoming an increasingly encouraging year for crypto investment products. According to CoinShares in a recent report, worldwide crypto exchange-traded products (ETPs) saw $3.3 billion in inflows in the week ending May 24.

ETP flows by asset
ETP flows by asset | Source: Coinshares

This brings the year-to-date total to a record-breaking $10.8 billion.

James Butterfill, head of research at CoinShares pointed towards the macroeconomic backdrop as a  driver of this trend, saying

According to this report, Bitcoin ETPs alone brought in $2.9 billion during the week. This made up about 25% of total inflows for the year.

Interestingly, even short-BTC products saw fresh interest, with $12.7 million in inflows, in their highest since December of last year.

Ethereum ETPs are also performing well, with $326 million in weekly inflows. On the other hand, XRP-focused products saw a steep $37.2 million in outflows.

Overall, with Bitcoin attempting to flip $110,000 into support, the interest in crypto ETFs and ETPs is not likely to fade anytime soon.  If the current trend continues, we could see this year go down as a major year for crypto adoption in worldwide investment.

Maxwell Mutuma
Maxwell Mutuma
Maxwell is a crypto-economic analyst and Blockchain enthusiast, passionate about helping people understand the potential of decentralized technology. I write extensively on topics such as blockchain, cryptocurrency, tokens, and more for many publications. My goal is to spread knowledge about this revolutionary technology and its implications for economic freedom and social good.

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