The landscape of digital asset investment witnessed a robust performance in May 2025, as both spot Bitcoin and Ethereum Exchange-Traded Funds (ETFs) concluded the month with substantial capital inflows. This sustained positive trend underscores growing investor confidence and maturity within the cryptocurrency market, signaling a strong appetite for regulated investment vehicles tracking major digital currencies.
Overall Inflows in May 2025
Throughout May 2025, spot Bitcoin ETFs collectively attracted a net inflow of $5.23 billion. This marks their third consecutive month of positive capital accumulation, reflecting sustained investor interest in the leading cryptocurrency.
Similarly, spot Ethereum ETFs experienced significant interest, recording a net inflow of $564.2 million. This performance extended their positive streak to four consecutive months, highlighting increasing adoption and demand for Ether-backed investment products.
Bitcoin ETF Performance
The period from May 19 to May 23, 2025, stood out as the most significant week for Bitcoin ETF inflows during the month. Several funds contributed substantially to the overall positive balance. The top-performing products by net inflow were:
| Bitcoin ETF | Net Inflow (May 2025) |
|---|---|
| IBIT | $5.91 billion |
| BTC | $129.88 million |
| HODL | $61.27 million |
While these funds saw substantial interest, other Bitcoin ETF products either recorded outflows or minimal net change over the month.
Ethereum ETF Performance
For the Ethereum ETF sector, the final week of May, specifically May 26 to May 30, 2025, registered the highest net capital influx. This late-month surge boosted the overall positive figures for Ethereum-based investment vehicles. Funds leading the inflows included:
| Ethereum ETF | Net Inflow (May 2025) |
|---|---|
| ETHA | $424.24 million |
| ETH | $63.9 million |
| FETH | $54.32 million |
| ETHW | $10.25 million |
| ETHV | $5.9 million |
Several other Ethereum ETF products also reported positive inflows, albeit in smaller amounts, contributing to the sector’s fourth consecutive month of growth.
Chris brings over six years of hands-on experience in cryptocurrency, bitcoin, business, and finance journalism. He’s known for clear, accurate reporting and insightful analysis that helps readers stay informed in fast-moving markets. When he’s off the clock, Chris enjoys researching emerging blockchain projects and mentoring new writers.