BTC ETF flows hit $1.4B in a single week

April spot Bitcoin ETF inflows are the highest since launch — IBIT and FBTC pull 78% of the volume.

Spot Bitcoin ETF inflows hit $1.4B in the third week of April, the highest single-week reading since the Q1 2024 launch. BlackRock IBIT pulled $740M; Fidelity FBTC pulled $360M; the remaining $300M was split across the long tail.

The two-issuer concentration is the structural story. IBIT and FBTC together control 78% of net flows YTD. That is a more extreme concentration than the gold ETF market reached at any point in its first 24 months. On-chain matching: the ETF buying is real BTC accumulation.