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Spot bitcoin ETFs log highest volume week of 2025 as BlackRock's IBIT reaches 30-day streak

U.S.-based spot bitcoin ETFs saw their largest weekly trading volume yet in 2025 last week, as the rising price of
BTC +0.39%
brought new inflows to the exchange-traded products.

The funds saw $25 billion in value change hands last week, according to SoSoValue data, making it the highest-volume week since late December, 2024. The funds logged a total net inflow of $2.75 billion over that period, making it the second-highest inflow week since the funds began trading near the start of 2024.

BlackRock's IBIT fund, the leading fund in the market, continues to draw large inflows, with a streak of 30 trading days without significant outflows. (On May 12, the fund saw essentially zero inflows or outflows, according to the SoSoValue data.) IBIT now holds 3.3% of all BTC, with a net asset value over $71 billion — more than triple Fidelity's FBTC, the second-largest such fund.

The spot bitcoin funds have been on a notable run in recent days, "significantly exceeding recent daily averages and driving continued market strength," BRN Lead Research Analyst Valentin Fournier previously told The Block

Ethereum ETFs also saw an increase in inflows compared to the prior week, with nearly $250 million, the highest such value since early February, though volume fell slightly.

BTC's price fell slightly on Friday after renewing its all-time high on Thursday, though it's been flat over the past 24 hours, according to The Block's Bitcoin Price page, currently trading around $108,900
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