Coinbase CEO Brian Armstrong is defending stablecoin rewards against calls for banking-style restrictions, arguing that fully reserved digital currencies pose fundamentally different risks than traditional banks.
In a September 19 interview, Armstrong contended that USDC rewards should not be treated like bank deposit interest because they pass through returns generated by assets backing the stablecoin, including short-term U.S. Treasuries.
Core Distinction: Reserves vs. Fractional Lending
Armstrong drew a sharp line between stablecoin rewards and deposit interest, stating that Coinbase is not engaging in fractional-reserve lending. He noted that such lending practices require a bank license.
The GENIUS Act, signed into law in July 2025, requires payment stablecoin issuers to maintain one-to-one reserves using eligible liquid assets. The law prohibits stablecoin issuers themselves from paying interest or yield, though it leaves open the question of rewards offered by exchanges and third parties.
Armstrong emphasized that Coinbase is not a stablecoin issuer—USDC is issued by Circle—and argued that applying bank regulations to the exchange would ignore structural differences between the two business models.
Banking Sector Opposition
Banking groups dispute the argument, with the American Bankers Association warning that stablecoin rewards could function like deposit interest and draw money away from traditional banks. Armstrong characterized this campaign as an effort to limit competition.
The White House Council of Economic Advisers estimated that prohibiting stablecoin yield would increase total bank lending by approximately $2.1 billion annually while imposing an estimated $800 million annual welfare cost. Banking groups have challenged the assumptions underlying that analysis.
Legislative Stalemate
The CLARITY Act remains unresolved after the Senate rejected cloture on September 15 by a vote of 49–50, falling short of the 60 votes required to proceed. Armstrong said revisions to the legislation had addressed Coinbase's earlier concerns, but the underlying dispute between crypto platforms and banks over stablecoin economics continues.
