Data compiled by Woofun AI shows that U.S. spot Bitcoin funds experienced their largest 30-day net outflow on record, with $6.35 billion exiting the market during the latest period. This significant capital withdrawal aligned with a 17% decline in Bitcoin’s price over one month, primarily driven by institutional redemptions across major products including BlackRock’s IBIT and Fidelity’s FBTC between May and June.

This 30-day window ranked first among 582 rolling periods tracked by Galaxy Research, following a 13-day outflow streak from May 15 through June 3 where investors removed approximately $4.4 billion (roughly 59,400 BTC). Although flows briefly stabilized with a minor $3 million net inflow around June 4 and 5, subsequent weekly withdrawals included a single week with $1.7 billion in net redemptions. Bitcoin prices retreated to four-month lows between $60,000 and $61,300 in early June, while cumulative net inflows dropped to $53.4 billion from an October 2025 peak of $63 billion. Bloomberg ETF analyst Eric Balchunas characterized these outflows as 'noise' within normal activity, yet year-to-date flows in 2026 remained near breakeven, signaling weakened institutional demand.