Blackrock's Ether Staking ETF, ETHB, has recorded a streak of inflows totaling $307.72 million across 20 days between July 28 and September 11, with no single day of net redemptions during that period. Since launching on Nasdaq on March 12, the fund has accumulated $830.67 million in net inflows and holds approximately $1.05 billion in net assets.
Fund Structure and Staking Operations
ETHB differs from a standard spot ethereum ETF by staking between 70% and 95% of its holdings. As of September 11, the fund held about 313,789 staked ETH, worth $802.9 million and representing 74.55% of total assets. An additional 107,128 ETH, valued at $274.1 million, remained unstaked. The fund's 30-day staking rewards rate stood at 1.52%.
The addition of yield through staking appeals to institutional investors comparing cryptocurrency with income-generating assets. A staking ETF provides both price exposure to ethereum and a return stream tied to network participation, broadening the appeal of ether beyond traditional spot ETF holders.
Comparison to Blackrock's Flagship ETF
Blackrock's larger spot ether fund, ETHA, continues to dominate institutional demand with approximately $13 billion in net inflows and about $9.11 billion in net assets. The disparity suggests that staking products are supplementing rather than replacing traditional spot ETF demand.
The absence of outflows from ETHB during the recent inflow period indicates that investors entering the product have behaved as strategic allocators rather than short-term traders.
Implications for Ethereum Supply
Staking ETFs create an additional source of structural demand for ether. When ETF inflows result in purchases of ETH that are subsequently staked, a portion of that supply moves away from readily tradable markets. Continued inflows across both staking and spot products could tighten liquid supply over time.


