US spot Bitcoin exchange-traded funds pulled in nearly $1 billion on Sept. 21 as Bitcoin broke above $86,000, marking the funds' strongest inflow day of 2026.
According to SoSoValue data, the ETFs recorded $999 million of net inflows on Sept. 21, the largest daily total since Oct. 6, 2025, when the products attracted about $1.2 billion.
Measured in Bitcoin terms, the move was even more pronounced. The ETFs absorbed about 11,530 BTC, their largest one-day net intake since Nov. 11, 2024, when they added roughly 12,560 BTC.
