BlackRock Ether Staking ETF Extends Inflow Run to 20 Days
BlackRock's ETHB has drawn $307.72 million across 20 trading days without a single outflow day as its assets pass $1 billion, while the larger ETHA still leads ether ETF demand.
Investors have put $307.72 million into BlackRock's ether staking ETF across 20 straight trading days without pulling a dollar out. The run started July 28 and was still intact on Sept. 11, according to SoSoValue data reported Sept. 14 by news.bitcoin.com.
The fund is the iShares Staked Ethereum Trust ETF, ticker ETHB on Nasdaq. About six months after launch it holds roughly $1.05 billion in net assets. BlackRock's own fund page listed $1,069,723,957 as of Sept. 14.
Money arrived faster as the run went on. ETHB took in $42.64 million on Aug. 28 and $52.91 million on Sept. 2. Since Nasdaq trading began on March 12, cumulative net inflows have reached $830.67 million.
Sept. 9 showed the pattern in a single session. ETHB drew $22.94 million, more than any other ether ETF that day, lifting its cumulative total to $798 million at the time, according to ChainCatcher reporting on SoSoValue data carried by KuCoin. All spot ether ETFs combined took in $34.75 million that day.
The reason investors accept a second BlackRock ether fund is yield. ETHB stakes between 70 percent and 95 percent of its ether. On Sept. 11 it held about 313,789 staked ether worth $802.9 million, or 74.55 percent of assets, with 107,128 ether worth $274.1 million left unstaked. BlackRock's page put the 30-day staking rewards rate at 1.53 percent as of Sept. 14.
That income reaches shareholders monthly. The latest payout covered a Sept. 9 record date at $0.036487 per share, payable Sept. 10. Earlier payouts were $0.032499 in August, $0.032059 in July, and $0.015237 in June.
Otherwise ETHB works like a standard exchange-traded product. It tracks the price of ether plus staking rewards on part of its holdings, without requiring holders to custody crypto directly. Performance is measured against the CME CF Ether-Dollar Reference Rate New York Variant. Coinbase Custody Trust Company holds the ether. The headline sponsor fee is 0.25 percent, cut to 0.12 percent on the first $2.5 billion of assets for 12 months starting March 12, 2026. BlackRock lists Feb. 18, 2026 as the launch date. On Sept. 14 the trust had 32.72 million shares outstanding, net asset value of $32.69, and 30-day average volume of 566,753 shares.
Trading stays tight to asset value. On Sept. 11 the shares closed at $32.68 against net asset value, a discount of 0.08 percent, on volume of 1,891,356 shares and a 30-day median bid-ask spread of 0.06 percent. Each creation basket represented 514.60 ether, about $1,307,731. The trust is not registered under the Investment Company Act of 1940 and is not a commodity pool under the Commodity Exchange Act, BlackRock states.
The shares track asset value closely. On Sept. 11 they closed at $32.68, a 0.08 percent discount to net asset value, on volume of 1,891,356 shares with a 30-day median bid-ask spread of 0.06 percent. Each creation basket held 514.60 ether, about $1,307,731. Ether's benchmark level stood at $2,541.26 on Sept. 14. The 0.12 percent waiver covers only the first $2.5 billion during the 12 months from March 12, 2026; anything above pays the full 0.25 percent, with every investor charged the same weighted-average rate. The trust is not registered under the Investment Company Act of 1940 and is not a commodity pool under the Commodity Exchange Act, BlackRock states.
Scale still belongs to the older sibling. ETHA, the iShares Ethereum Trust, has collected roughly $13 billion in cumulative net inflows and holds about $9.11 billion in net assets. On Sept. 14, spot ether ETFs drew $121 million combined, with ETHA supplying $80.50 million to reach $13.09 billion cumulative and Grayscale's Ethereum Mini Trust adding $16.23 million to reach $1.93 billion, according to ChainCatcher and SoSoValue data carried by Gate. Five days earlier ETHA had added $9.71 million for $12.883 billion cumulative. Across all spot ether ETFs, net assets stood at $15.688 billion on Sept. 9, equal to 5.2 percent of ether's market capitalization, with cumulative inflows of $13.203 billion.
Twenty days without an outflow suggests buyers who intend to stay. The Sept. 14 report read the streak as strategic allocation rather than short-term trading. The distinction between the products is straightforward: a spot fund sells price exposure, while a staking fund adds a return stream tied to running the network.
Staking locks the ether up. BlackRock's disclosures state that staked balances move through activation, exit, and withdrawal queues where they cannot be sold or transferred, that the protocol caps how much can enter or leave each period so queues can stretch for days, weeks, or months, and that ether in activation or withdrawal earns nothing. Breaches, smart contract failures, or validator and custodian failures can destroy part or all of a staked balance plus its rewards. BlackRock guarantees no rewards at all.
Perspective matters. ETHB remains about one-tenth the size of ETHA, and the Sept. 14 report cautioned that macro conditions, risk appetite, and wider ETF flows will keep deciding short-term price moves. The trust's latest monthly payout, $0.036487 per share for the Sept. 9 record date, went out Sept. 10.
Photo: 50 Hudson Yards, Manhattan, headquarters of BlackRock, by Dazzling4 via Wikimedia Commons (CC BY-SA 4.0).
