BlackRock’s bitcoin exchange-traded funds (ETFs) have grow to be the agency’s most worthwhile product line, in keeping with Cristiano Castro, director of enterprise improvement at BlackRock Brazil.
The determine is notable provided that the agency manages over 1,400 ETFs globally and is the world’s largest asset supervisor with greater than $13.4 trillion in belongings below administration.
Talking on the Blockchain Convention in São Paulo to native media, Castro known as the event “an enormous shock” 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.
“After we launched, we have been optimistic,” Castro stated, “however we didn’t count on 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 achieve $70 billion in belongings, doing so in 341 days. That momentum has continued regardless of latest volatility in bitcoin’s value, with the ETF at the moment sitting at $70.7 billion in internet belongings in keeping with SoSoValue knowledge.
Internet 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 speedy progress has been fueled by BlackRock’s international 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 numerous BTC-linked merchandise from BlackRock, together with ETPs abroad.
Castro addressed latest outflows from bitcoin funds, saying that such motion is anticipated given how retail buyers are inclined to react to cost drops. “ETFs are a really liquid and highly effective instrument. They’re meant for individuals to handle flows,” he stated.
BlackRock itself has been betting on its bitcoin ETF. Its Strategic Revenue Alternatives Portfolio has just lately raised its stake in IBIT by 14%.
CoinDesk has reached out to BlackRock however did not hear again on the time of writing.

