- US spot Bitcoin ETFs recorded $744.35 million in net inflows for the week ending March 21, breaking a five-week outflow streak.
- BlackRock‘s IBIT led contributions with $537.5 million in inflows, while Bitcoin prices rebounded to the $87,000 range.
- Ethereum ETFs continued to experience outflows for the fourth consecutive week, though BlackRock increased its ETH holdings in its BUIDL fund to $1.145 billion.
US spot Bitcoin ETFs have reversed their negative flow trend, securing $744.35 million in net inflows for the trading week ending March 21. This marks the highest weekly inflow in two months and ends a five-week streak of outflows, with positive flows now extending to six consecutive trading days, according to data from SoSoValue.
The inflow resurgence was primarily driven by BlackRock’s iShares Bitcoin Trust (IBIT), which contributed $537.5 million to the total. Fidelity’s Wise Origin Bitcoin Fund (FBTC) followed with $136.5 million in net inflows, demonstrating renewed investor confidence despite recent economic uncertainties.
This positive momentum emerges after weeks of bearish sentiment in both cryptocurrency markets and traditional financial sectors, where concerns about trade tensions and recession risks had dampened investor enthusiasm. Bitcoin’s price has responded to the inflow renaissance, climbing back to $87,343 at the time of reporting, according to CoinGecko data.
The current inflow strength represents the most substantial weekly investment since January 2025, when Bitcoin ETFs recorded their peak flows of $1.96 billion and $1.76 billion across two consecutive weeks. That period coincided with Bitcoin reaching its all-time high of $109,000 on January 20, which notably was President Donald Trump‘s inauguration day.
Meanwhile, Ethereum’s ETF landscape presents a stark contrast to Bitcoin’s recovery. Ether ETFs extended their negative performance to four consecutive weeks of outflows, with investors withdrawing $102.89 million during the same period. BlackRock’s iShares Ethereum Trust ETF (ETHA) accounted for the majority of the outflows, totaling $74 million.
Despite these outflows, ethereum’s price has shown resilience, trading at $2,090 after briefly dipping below the psychologically significant $2,000 level for the first time in over a year.
Institutional commitment to Ethereum remains evident through other investment vehicles. BlackRock’s BUIDL fund, which focuses on tokenized real-world assets (RWAs), has increased its Ethereum holdings to a record $1.145 billion, up from approximately $990 million just one week prior, according to Token Terminal data. This significant position indicates the world’s largest asset manager maintains strong conviction in Ethereum’s role as infrastructure for real-world asset tokenization.
Market sentiment metrics reflect the improving outlook, with the Crypto Fear & Greed Index rising to 45% from 32% the previous week. However, investment firm QCP Capital advises a cautious approach, noting that “Upcoming tariff escalations slated for 2 April could once again pressure risk assets,” according to their March 24 market analysis.
The divergence between Bitcoin and Ethereum ETF flows highlights how differently investors are positioning themselves across the two largest cryptocurrencies, even as both assets navigate complex market conditions influenced by broader economic factors.
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