Crypto31 March, 20261 min read
US Bitcoin ETFs Surge With $471M Inflows, BlackRock IBIT Leads
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US spot Bitcoin ETFs drew about $471 million in net inflows on April 6. March 2026 inflows reached about $1.3 billion, marking the first monthly gain of 2026.
Surge in ETF Inflows
US-listed spot Bitcoin ETFs recorded their largest daily inflows in weeks, attracting $471 million on April 6. BlackRock's iShares Bitcoin Trust led with about $182 million, followed by Fidelity with $147 million. The ARK 21Shares Bitcoin ETF ranked third with nearly $119 million, its largest daily inflow since July 2025.
ETF outflows slowed to a halt last week, with major issuers selling just about $16.6 million. ARK Invest's ARKB ETF purchased the most BTC, or $34 million in a week.
Context and Market Impact
The surge comes after January and February saw roughly $1.8 billion in net outflows. Following the three April trading sessions, US spot Bitcoin ETFs recorded about $307 million in net inflows. Total assets under management climbed back above $90 billion.
The inflows coincided with broader market relief after a Reuters report suggested a US-Iran ceasefire. The total crypto market cap sits around $2.43 trillion, with Bitcoin dominance at 56.6%.
Ether ETFs Also Gain
US spot Ether ETFs recorded $120 million in inflows. They offset $78 million in outflows from the prior two trading sessions. The broader altcoin ETF market remained subdued.
XRP-based funds recorded no inflows. The growing importance of ETFs reflects a shift in institutional engagement.