US spot Bitcoin exchange-traded funds attracted $66.2 million in net inflows on Sept. 29, more than doubling the $31 million recorded a day earlier and extending a positive streak. The session also highlighted a growing split in institutional demand between the two largest cryptocurrencies.
BlackRock’s iShares Bitcoin Trust (IBIT) led with $51.1 million in fresh capital, followed by ARK 21Shares’ ARKB with $33.2 million. Those gains were partially offset by an $18.1 million outflow from Bitwise’s BITB, while other major Bitcoin ETFs reported no net movement. Rather than broad-based demand, the day’s positive flow was heavily concentrated in BlackRock and ARK products.
By contrast, Ethereum ETFs swung from a $17.1 million inflow on Sept. 28 to a $2.8 million net outflow on Sept. 29, ending a run of consecutive positive sessions. BlackRock’s ETHA saw $8.9 million leave the fund, and Fidelity’s FETH recorded $6.7 million in outflows, though Grayscale’s ETH product partially offset the decline with $12.8 million in inflows.
Combined Bitcoin and Ethereum ETF markets still posted about $63.4 million in net inflows for the session, but nearly all demand came from Bitcoin products. Bitcoin traded around $83,888, down roughly 0.17% over 24 hours, while Ethereum was near $2,695.15, down about 0.5%.
The modest Ethereum outflow looks more like a pause than a major exodus, especially compared with the hundreds of millions of dollars that entered Ethereum ETFs earlier in the month.