US Spot Bitcoin ETFs جذب $623 Million Weekly Inflows as BlackRock Dominates Demand

US-listed spot crypto exchange-traded funds (ETFs) continued to attract fresh capital last week, with Bitcoin (BTC) products leading inflows and Ethereum (ETH) maintaining a positive—if smaller—trend. The data underscore that, despite intermittent volatility in underlying token prices, demand for regulated crypto exposure remains resilient, particularly through the largest issuers.

According to SoSoValue data cited by PANews, US spot Bitcoin ETFs recorded net inflows of about $623 million over the week. BlackRock’s iShares Bitcoin Trust (IBIT) accounted for the bulk of that figure, bringing in roughly $596 million and lifting its cumulative net inflows to $66.1 billion—reinforcing IBIT’s position as the bellwether for ‘institutional demand’ in the spot ETF complex.

ARK 21Shares Bitcoin ETF (ARKB) posted net inflows of about $53.1 million, bringing its cumulative total to approximately $1.71 billion. In contrast, Grayscale Bitcoin Trust (GBTC) continued to see outflows, with about $62.3 million leaving the fund over the same period, taking its cumulative net outflows to roughly $26.35 billion. Total net assets across US spot Bitcoin ETFs stood at around $106.61 billion, representing about 6.67% of Bitcoin’s total market capitalization.

Flows were positive but more measured on the Ethereum side. For the week of May 4 to May 8 (US Eastern Time), US spot Ethereum ETFs logged net inflows of about $70.49 million, according to SoSoValue data cited by Odaily. BlackRock’s iShares Ethereum Trust (ETHA) led with $100 million in net inflows, bringing its cumulative net inflows to roughly $12.0 billion. Grayscale’s Ethereum Mini Trust (ETH) added about $6.33 million, while Fidelity’s Ethereum Fund (FETH) saw net outflows of approximately $32.16 million.

Total net assets across US spot Ethereum ETFs were about $13.73 billion, equivalent to roughly 4.94% of Ethereum’s market capitalization. Cumulative net inflows across the category were reported at approximately $12.09 billion.

Beyond Bitcoin and Ethereum, newer spot ETF markets also showed steady intake. US-listed spot Solana (SOL) ETFs recorded net inflows of about $39.23 million over the May 4–8 ET window, PANews reported, citing SoSoValue. Bitwise’s Solana ETF (BSOL) led with around $36.39 million in net inflows, lifting cumulative net inflows to about $862 million. Fidelity’s Solana ETF (FSOL) added roughly $2.84 million, bringing its cumulative total to about $161 million. Total net assets across spot SOL ETFs were estimated at about $987 million—about 1.82% of Solana’s market cap—while cumulative net inflows reached roughly $1.06 billion.

Spot XRP ETFs also drew capital. SoSoValue data showed net inflows of about $34.21 million over the same May 4–8 ET period. Canary’s XRP ETF (XRPC) took in roughly $13.54 million, bringing cumulative net inflows to about $438 million, while Bitwise’s XRP ETF (XRP) added around $12.36 million for a cumulative total of about $434 million. Total net assets across XRP spot ETFs were estimated at about $1.12 billion, or about 1.26% of XRP’s market cap, with cumulative net inflows at roughly $1.32 billion.

Separately, Morgan Stanley’s spot Bitcoin vehicle is gaining attention for its early consistency. Odaily, citing SoSoValue, reported that the Morgan Stanley Bitcoin Trust (MSBT) recorded cumulative net inflows of about $193.6 million in its first month of trading, without a single day of net outflows. From its April 8 listing through May 7, the fund’s net assets reached about $239.6 million, even as the broader spot Bitcoin ETF segment experienced recurring bouts of redemptions.

MSBT’s 0.14% management fee is among the lowest in the US spot Bitcoin ETF market, a pricing advantage that could help sustain inflows as competition increasingly shifts from product novelty to cost and liquidity. Morgan Stanley’s head of digital assets, Amy Oldenburg, said initial capital primarily came from self-directed client buying, while advisory distribution channels have not yet been fully activated—suggesting potential additional demand if the firm broadens internal placement.

Legislative and regulatory developments also remain central to the market’s medium-term trajectory. Galaxy Digital said seven Democratic senators on the US Senate Banking Committee could be pivotal to advancing the CLARITY Act, a digital-asset market structure bill scheduled for committee consideration on Thursday, according to PANews. If the measure clears committee with a majority, it can move to the full Senate, where passage would require at least 60 votes.

Galaxy Digital categorized Senators Ruben Gallego and Angela Alsobrooks as broadly supportive of the bill’s framework, while Senators Mark Warner, Catherine Cortez Masto, Andy Kim, and Raphael Warnock were described as conditional supporters. Senator Lisa Blunt Rochester was singled out as a potential swing vote. The bill was originally introduced in July 2025, but momentum stalled in January after Coinbase withdrew its support, highlighting the fragility of bipartisan coalitions in crypto policymaking.

In South Korea, tax enforcement capacity is set to expand sharply. PANews, citing Cryptopolitan, reported that the National Tax Service is building an AI system—budgeted at roughly $2.2 million—to track virtual-asset transactions and crack down on tax evasion, with completion targeted by the end of 2026. The system is designed to integrate exchange records with on-chain data to flag suspected money laundering, unreported gifts, and cross-border tax evasion, and it is expected to extend monitoring to non-custodial wallets.

The agency is reportedly coordinating implementation details with the country’s five major exchanges, including Upbit and Bithumb, while final tax guidance is expected toward the end of 2026. The initiative comes ahead of planned taxation of crypto income starting January 1, 2027, when South Korea intends to apply a 22% annual tax rate on virtual-asset gains above approximately $1,800 per year.

On the trading side, on-chain activity hinted at potential supply movement toward exchanges. PANews, citing Lookonchain, reported that large investor Garrett Jin deposited a total of 577,896 ETH into Binance over four days—an amount valued at roughly $1.35 billion—while on-chain estimates suggested the position may reflect an unrealized loss of about $1.3 billion. Lookonchain said much of the ETH was acquired roughly eight months ago by converting from Bitcoin when ETH traded near $4,591.

Corporate treasury adoption also continued in Europe. PANews reported that French listed company Capital B completed a €15.2 million fundraising to accelerate its Bitcoin treasury strategy. The round included participation from global institutional investors and strategic backers including Adam Back and Tobam, with the proceeds earmarked to expand Bitcoin holdings.

Meanwhile, Binance announced new spot listings and trading incentives. Odaily reported that Binance will list MEGA/U, TON/U, and TON/USD1 spot trading pairs at 9:00 a.m. ET on May 12 (2:00 p.m. UTC). The exchange said eligible users will receive zero-fee promotions for limit orders on MEGA/U and TON/U spot and margin pairs starting at launch, lasting until further notice.

Overall, last week’s fund flows reinforced a key market narrative: as spot ETFs broaden across major assets, capital continues to concentrate in the most liquid, lowest-friction products—while policy decisions in Washington and enforcement frameworks in Asia remain critical swing factors for the sector’s next phase of growth.