BlackRock’s iShares Bitcoin Trust attracted $117.4 million on September 4, 2026, pushing total U.S. spot Bitcoin ETF inflows to $174.6 million for the day. A day earlier, IBIT alone had absorbed $454 million, bringing the two-day combined figure above $500 million. Since its launch in January 2024, IBIT has surpassed $60 billion in cumulative net inflows, cementing its position as the dominant vehicle in the U.S. spot Bitcoin ETF category. BlackRock clarified that it only transacts in Bitcoin when clients instruct it through the fund, acting as an intermediary rather than a principal investor, with actual Bitcoin purchased on the open market through custodians like Coinbase Prime.
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