The iShares Bitcoin Trust (IBIT) recorded a $161.7 million net outflow on September 15.

Total U.S. spot Bitcoin ETF outflows reached approximately $450 million. This volume marks the largest net withdrawal since June 25.

The U.S. Senate failed to pass the CLARITY Act, a bill designed to establish a digital asset regulatory framework.

Bitcoin’s price fell below $75,000 following the legislative failure and institutional outflows.