Bitcoin Spot ETFs Post $283M Outflow as ARKB Leads Redemptions

U.S. Bitcoin spot ETFs recorded $283 million in net outflows on Sept. 10, according to SoSoValue data. This marks three consecutive days of redemptions—a signal that institutional accumulation is pausing after months of relentless inflows.

Ark Invest and 21Shares' ARKB led the selloff, posting a $164 million single-day outflow. Despite the redemption, ARKB has pulled in $1.223 billion cumulatively since launch, so the fund remains in institutional favor overall.

Morgan Stanley's MSBT bucked the trend, capturing $3.79 million in fresh inflows. The selective buying into certain products suggests institutions are rotating rather than exiting Bitcoin ETF exposure entirely.

U.S. Bitcoin spot ETFs now hold $97.49 billion in total net assets, representing 6.28 percent of Bitcoin's $1.55 trillion market cap. Cumulative inflows since inception have reached $55.168 billion—the institutional bid remains substantial despite recent outflow days.