BlackRock’s iShares Bitcoin Trust pulls in $665.2 million as ether ETFs bleed

BlackRock’s bitcoin ETF, IBIT, is one of the most watched spot products in the U.S. market, and the comparison with ether ETFs puts the latest flow data in a familiar contest between the two largest crypto assets. These products sit at the center of institutional access to crypto, so inflow patterns are often treated as a read on where professional money is going. The October 2025 reference in the IBIT story shows this is being measured against a recent high-water mark, not a distant baseline.

For investors using listed crypto funds, the split means allocators can shift exposure without touching coins directly, but they are still choosing between bitcoin and ether as separate bets. Ether ETF outflows alongside bitcoin inflows can also change how issuers compete for capital and attention in the ETF market. BlackRock benefits most when its bitcoin product is attracting large flows at the same time that rival ether products are losing them. (per cryptobriefing.com)

The larger issue is whether U.S. spot crypto ETFs will reinforce bitcoin’s dominance or give ether a more even share of institutional demand. A strong run into bitcoin and away from ether keeps the market centered on one asset rather than on a broader basket of crypto exposure. That matters because ETF flow data can shape how issuers, advisors, and traders talk about the relative standing of the two networks.

What is still open is whether this is a one-day repositioning or the start of a longer pattern in ETF allocations. The next few flow reports will show whether IBIT’s latest intake holds up and whether ether products keep bleeding capital. Min Jung’s catch-up-trade framing points to a view on positioning, but the reports here do not show how long that stance will last.