BlackRock’s bitcoin exchange-traded funds (ETFs) have develop into the agency’s most worthwhile product line, based on Cristiano Castro, director of enterprise improvement at BlackRock Brazil.
The determine is notable on condition that the agency manages over 1,400 ETFs globally and is the world’s largest asset supervisor with greater than $13.4 trillion in property below administration.
Talking on the Blockchain Convention in São Paulo to native media, Castro known as the event “a big surprise” and stated that allocations within the agency’s bitcoin ETFs, together with the U.S.-based IBIT and Brazil’s IBIT39, had come near $100 billion.
“When we launched, we were optimistic,” Castro stated, “but we didn’t expect this scale.”
The agency’s U.S.-listed spot bitcoin ETF IBIT, launched in January 2024, grew to become the quickest in historical past to succeed in $70 billion in property, doing so in 341 days. That momentum has continued regardless of latest volatility in bitcoin’s worth, with the ETF at the moment sitting at $70.7 billion in internet property based on SoSoValue knowledge.
Web inflows exceeded $52 billion in its first yr, far outpacing all different ETFs launched within the final decade. IBIT additionally generated an estimated $245 million in annual charges by October 2025.
IBIT’s fast progress has been fueled by BlackRock’s world distribution community and a wave of institutional curiosity following U.S. regulatory approval of spot bitcoin ETFs. It now holds over 3% of bitcoin’s complete provide, and it was adopted by varied BTC-linked merchandise from BlackRock, together with ETPs abroad.
Castro addressed latest outflows from bitcoin funds, saying that such motion is predicted given how retail traders are likely to react to cost drops. “ETFs are a very liquid and powerful tool. They’re meant for people to manage flows,” he stated.
BlackRock itself has been betting on its bitcoin ETF. Its Strategic Revenue Alternatives Portfolio has not too long ago raised its stake in IBIT by 14%.
CoinDesk has reached out to BlackRock however did not hear again on the time of writing.

