GBTC, the largest and longest-running bitcoin fund recently converted into an ETF from a closed-end structure, endured $2.2 billion of net outflows through last week, while newly-opened U.S. bitcoin ETFs saw just $1.8 billion in net inflows, according to the report. Adding net outflows from global vehicles, crypto-focused funds endured a net $500 million in exits, according to CoinShares.