June 2025 was a significant month for US spot Bitcoin and Ethereum exchange-traded funds (ETFs), as they collectively attracted nearly $6 billion in fresh investments. This remarkable performance signifies one of their strongest showings this year, highlighting a surge in institutional interest in the crypto market.
According to data from SoSoValue, Bitcoin-focused ETFs received the majority of the funds, raising $4.6 billion over a 15-day period of consistent inflows. This brought their total cumulative inflows to around $49 billion, with net assets totaling $134 billion.
One standout performer among these funds was BlackRock’s iShares Bitcoin Trust (IBIT), which attracted $3.85 billion, solidifying its position as a leading player in the Bitcoin ETF sector.
Meanwhile, Ethereum ETFs saw a substantial influx of $1.16 billion in new capital, marking their second-best performance since their launch in 2024. This growth can be attributed to continued institutional enthusiasm following Ethereum’s successful Pectra upgrade, which improved its scalability and security. Ethereum ETFs now have $4.2 billion in net inflows and over $10 billion in assets.
The strong performance of Bitcoin and Ethereum ETFs has sparked speculation that the SEC may soon approve additional cryptocurrency ETFs. Bloomberg analysts Eric Balchunas and James Seyffart raised the approval odds for Solana, Litecoin, and XRP ETFs to 95% by the end of 2025, citing positive regulatory developments and increasing institutional demand.
They predict that the second half of 2025 will witness a wave of new ETF approvals, with the SEC potentially clearing multiple crypto index and basket ETFs by early July. Other altcoins such as Dogecoin, Cardano, Polkadot, and Avalanche are also being considered for approval later in the year, with analysts assigning a 90% chance of SEC approval.
The optimism surrounding these ETFs is largely fueled by the supportive stance of the current US administration, led by President Donald Trump, who has shown support for pro-crypto policies. This shift in attitude is raising hopes that the crypto market could be entering a new phase of growth and regulatory clarity.
Overall, the performance of Bitcoin and Ethereum ETFs in June 2025 reflects a growing interest from institutional investors in the crypto market, with potential for further expansion and diversification in the ETF landscape.