The $616.22 million in daily net withdrawals recorded on May 30, 2025, ended the six-week inflow run for US Bitcoin spot ETFs.
This reversal follows a period of sustained institutional interest and coincides with market volatility as Bitcoin faces downward price pressure.
Major Bitcoin ETFs record substantial outflows ending streak
The six-week inflows period ended on May 30, 2025, after massive outflows from several major Bitcoin ETF issuers. BlackRock’s IBIT led the exodus with $430.82 million in outflows, but retained $69.21 billion in net assets. Fidelity’s FBTC was second with $113.71 million in outflows, with its net assets at $20.75 billion.
ARK & 21Shares’ ARKB saw $120.14 million in outflows with a net asset value of $4.82 billion, Grayscale’s BTC saw $16.22 million in outflows from the fund, and Bitwise’s BITB saw $55.93 million in outflows and a new net asset value of $3.95 billion.
Some ETFs had neutral flows on outflow days. Grayscale’s GBTC, VanEck’s HODL, Valkyrie’s BRRR, Invesco’s BTCO, Franklin’s EZBC, and WisdomTree’s BTCW all had zero net inflows.
Two funds defied the trend with positive inflows. They are Invesco’s BTCO, which increased its net assets by $86.11 million to $538.35 million, and HashDex’s DEFI, which had small gains of $2.62 million despite having negative $2.62 million in net flows.
ETF market remains strong despite outflow reversal
With their large daily volumes, US Bitcoin spot ETFs continue to dominate the crypto market with a total net asset of $126.15 billion as of May 30, 2025. They account for 6.07% of the total market capitalization of Bitcoin.
The cumulative total net inflow across all Bitcoin ETFs remains positive at $44.37 billion. This shows that the single day of outflows has not erased the overall institutional accumulation trend. Total value traded reached $3.39 billion as of May 31.
Weeklies indicate a turnaround of positive to negative flows with May 30 posting -$157.40 million, followed by May 23 with $2.75 billion inflows, May 16 with $603.74 million, May 9 with $934.17 million, May 2 with $1.81 billion, and April 25 with $3.06 billion weekly inflows.
Inflows were $15.85 million for the week to April 17, with April 11 posting -$713.30 million and April 4 with -$172.69 million outflows.
Individual Bitcoin ETF performance shows mixed results across providers
The outflows on May 30 led to mixed performance by various Bitcoin ETF providers. Data reveals that the largest funds experienced the largest absolute outflows, with the smallest funds experiencing more mixed results.
BlackRock’s IBIT, the largest fund with $69.21 billion of net assets, saw the largest one-day withdrawal of $430.82 million. But it was a relatively small percentage of its total holdings.
Fidelity’s FBTC, at a net asset value of $20.75 billion, lost $113.71 million from the fund and still remains the second-largest Bitcoin ETF in terms of assets. Grayscale’s GBTC, traditionally one of the major ones, experienced zero net flows on the day of outflows.
Some of the mid-tier funds experienced proportionally more redemptions relative to their asset base. ARK & 21Shares’ ARKB lost $120.14 million of its $4.82 billion asset base and Bitwise’s BITB lost $55.93 million out of $3.95 billion in assets.
The pattern asymmetry of outflows suggests that different types of investors are likely utilizing different ETF products for different purposes with some being used as short-term trading vehicles while others accrue institutional owners over longer time frames.
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