Coinbase's John D’Agostino says crypto platform stands alone as industry's full-service prime broker
By Will Canny
Published on April 26, 2026.
Coinbase (COIN), head of strategy at Coinbase Institutional, John D'Agostino, has become the only full-service prime broker in crypto by definition. The company's flagship platform, Coinbase Prime, bundles all functions into a single system allowing hedge funds and asset managers to trade, store and finance digital assets under one roof. Prime holds over $350 billion in assets under custody, about 12% of the total crypto market cap, and serves as custodian for over 80% of U.S. bitcoin and ether ETF assets. The firm's CEO, Brian Armstrong, stated that while crypto remains too small for major banks to fully commit, he expects banks to partner and rent.
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