Here is the latest update on United States spot BTC ETF market flows for Wednesday, September 16, 2026. The day closed with net flows at -$295.9m, marking a second consecutive period of heavy withdrawals for spot Bitcoin ETFs.
Building on the -$450.4m recorded on Tuesday, this additional -$295.9m in net outflows has pushed the cumulative two-day total down to -$746.3m. Despite this broader trend of capital leaving the market, MSBT stood apart as the sole fund to end the day in a meaningfully positive position.
Building on the -$450.4m recorded on Tuesday, this additional -$295.9m in net outflows has pushed the cumulative two-day total down to -$746.3m. Despite this broader trend of capital leaving the market, MSBT stood apart as the sole fund to end the day in a meaningfully positive position.
