U.S. spot Bitcoin exchange-traded funds recorded net inflows of $79.15 million on July 16, with BlackRock's IBIT leading the category at $33.44 million, according to flow data cited by market tracker Wu Blockchain.
Spot Ethereum ETFs posted net outflows of $28.04 million for the same day, though Bitwise's ETHW recorded a single-day inflow of $2.28 million, the largest among Ethereum products. Bitcoin inflows outpaced Ethereum outflows by $107.19 million on the day.
BlackRock's IBIT has emerged as the dominant Bitcoin ETF since its launch in January 2024. The product's outsize inflows relative to competitors track with the asset manager's scale advantage in the ETF market, where distribution networks and institutional relationships drive adoption.

Bitwise's ETHW, launched in July 2024, has attracted capital as one of the largest pure Ethereum spot ETF offerings alongside competitors including Grayscale, Fidelity and Invesco. Bitwise's ETHW recorded a single-day inflow of $2.28 million on July 16.
ETF flow data is tracked daily by providers including SoSoValue and reported by market participants. Flows measure the pace of institutional and retail capital allocation into and out of these products on given trading days.