Key Takeaways:

US spot Ether ETFs saw a record $717 million net inflow on Wednesday.

BlackRock's ETHA led with $489 million, followed by Fidelity’s FETH with $113 million.

US ETFs now hold over 5 million ETH, more than 4% of circulating supply.

ETF buying outpaced ETH issuance by 107x, according to Ultra Sound Money.

Altcoins rallied alongside Ether amid rising institutional demand.

US spot Ether exchange-traded funds (ETFs) posted their largest-ever daily net inflow on Wednesday, pulling in $717 million as renewed investor appetite and an altcoin rally pushed ETH demand higher.

According to preliminary data, BlackRock’s ETHA ETF led the charge with a $489 million inflow, while Fidelity’s FETH followed with $113 million. The surge marks the strongest single-day inflow since Ether ETFs launched, breaking the previous record of $428 million on Dec. 5, 2024, according to Farside Investors.

ETFs Now Hold Over 4% of ETH Supply

The total holdings of US-listed Ether ETFs have now surpassed 5 million ETH, representing more than 4% of Ethereum’s circulating supply. This rise highlights accelerating institutional accumulation amid increasing expectations for ETH’s long-term value as a yield-generating and deflationary asset.

Blockchain data from Ultra Sound Money shows that $6.74 million worth of ETH was issued over the past 24 hours — while ETFs bought nearly 107x that amount on Wednesday alone.

Altcoins Ride the Momentum

The inflow record comes as altcoins surge across the board, with many riding the coattails of Ethereum’s bullish momentum. Analysts suggest the combination of ETF-driven demand, positive regulatory developments, and improved market sentiment is fueling the broader altcoin rally.

With staking ETF approvals expected later this year and Ethereum’s deflationary mechanics continuing to attract traditional finance interest, industry watchers expect ETH ETF inflows to remain strong through Q3.