Ethereum ETFs Keep Institutional Momentum

After Monday’s record-breaking $1.02 billion inflow into Ether ETFs, Tuesday proved that demand wasn’t a one-day wonder. For the second consecutive day, Ethereum exchange-traded funds brought in massive institutional cash, recording $523.92 million in net inflows on August 12, 2025.

The surge underscores growing institutional conviction in Ethereum’s long-term value proposition, from its role in DeFi and staking to its expanding Layer-2 ecosystem.

Who Drove the ETH ETF Gains

Leading the charge once again was Blackrock’s ETHA, pulling in $318.67 million. Fidelity’s FETH followed with a strong $144.93 million. Other notable inflows included:

• Grayscale Ether Mini Trust: $44.25 million
• Grayscale ETHE: $9.33 million
• VanEck ETHV: $4.94 million
• 21Shares CETH: $1.80 million

For the second day in a row, no Ether ETF saw outflows. Trading volume reached $3.19 billion, and total net assets rose to $27.60 billion — now representing nearly 5% of Ethereum’s total market capitalization.

Bitcoin ETFs Stay Positive Despite Outflows

Bitcoin ETFs also ended the day in the green, adding $65.95 million in net inflows, though the picture was more mixed compared to Ethereum.

The entirety of Bitcoin’s gains came from Blackrock’s IBIT, which absorbed $111.44 million in fresh capital. However, this was partially offset by significant outflows:

• Ark 21Shares’ ARKB: -$23.86 million
• Grayscale’s GBTC: -$21.63 million

Despite the pullbacks, total Bitcoin ETF trading volume stood at $3.05 billion, with net assets climbing to $155.02 billion.

Changing Market Dynamics

The back-to-back blockbuster inflows into Ether ETFs — totaling over $1.54 billion in just two trading sessions — suggest that institutional portfolios may be rebalancing in favor of Ethereum exposure.

Several factors could be driving this shift:

• ETH staking yields adding an income layer for investors
• Growth in Layer-2 scaling adoption boosting network usage
• Broader DeFi and tokenization trends favoring Ethereum’s infrastructure

Meanwhile, Bitcoin remains a solid, lower-volatility anchor for institutional crypto allocations, but the inflow disparity hints at changing appetites in the ETF landscape.

What’s Next

If Ethereum ETFs sustain inflows of this magnitude through the week, August could set a historic record for ETH-linked institutional products. For Bitcoin, the key will be whether inflows broaden beyond IBIT to other major ETFs, indicating a more diversified base of buying interest.

For now, the momentum appears firmly in Ethereum’s favor, with Bitcoin holding its ground — signaling not so much a head-to-head battle as a shift in leadership dynamics in the crypto ETF race.