BlackRock IBIT Leads $1.26Bn Spot Bitcoin ETF Outflows as BTC Tests $70,000

From May 18–22, 2026, BlackRock's iShares Bitcoin Trust (IBIT) made up most of the $1.26Bn in US spot Bitcoin ETF outflows, with roughly 13,000 BTC (about $1.01Bn) moved from custody addresses over five days. The withdrawals coincided with Bitcoin failing to hold $70,000 and trading around $67,000–$68,000, while the report frames higher-for-longer Fed expectations and rising Treasury yields as the key macro driver.