BlackRock and Fidelity’s spot Bitcoin ETFs recorded $5.5 billion in trading volume today, highlighting continued institutional interest in crypto assets.

BlackRock’s IBIT has emerged as a dominant force in spot Bitcoin ETFs, driving the majority of recent inflows and controlling significant liquidity as of early October 2025. The asset manager holds a notable portion of Bitcoin’s circulating supply through its ETF product.

Fidelity’s FBTC is actively contributing to capital cycling among spot Bitcoin ETFs, reflecting broader institutional accumulation strategies. In late September 2025, the investment firm demonstrated aggressive rotation of capital within the sector as institutional adoption of Bitcoin through spot ETFs continued to gain momentum.