TechFlow, May 25 — According to The Block data, U.S. spot Bitcoin ETFs recorded their highest weekly trading volume since 2025 this week, with a total transaction value of $25 billion and net inflows of $2.75 billion—the second-highest weekly net inflow since the product category launched in early 2024. BlackRock's IBIT has seen no net outflows for 30 consecutive days (with one day recording zero net inflow); it currently holds 3.3% of the global Bitcoin supply, with over $71 billion in net assets—approximately three times that of Fidelity's FBTC, the second-largest fund.
During the same period, spot Ethereum ETFs recorded net inflows of approximately $250 million, the highest level since early February, despite a slight decline in trading volume.
