BlackRock Bitcoin ETFs Surpass Expectations as Major Revenue Source

Spot Bitcoin ETFs have reshaped the cryptocurrency market in recent years, enabling participation without direct asset ownership. BlackRock, a major issuer, has seen unexpected success with these products.

BlackRock’s Bitcoin ETF Success

  • At the Blockchain Conference 2025, BlackRock's Cristiano Castro highlighted that Bitcoin ETFs are now the largest revenue source for the company.
  • The US-based Bitcoin fund (IBIT) reached over $70.7 billion in net assets, becoming the first ETF to exceed the $70-billion mark by June 2025.
  • IBIT generated roughly $245 million in annual fees as of October 2025, despite a slowdown in the US Bitcoin ETF market.

Normalcy of Bitcoin ETF Outflows

  • Recent outflows from BlackRock’s Bitcoin ETF are considered normal due to the liquidity and reactionary nature of retail investors.
  • The iShares Bitcoin Trust experienced a net outflow of $113.72 million, marking its fifth consecutive week of withdrawals.

Bitcoin ETFs