Coinbase CEO Challenges Banks Over Stablecoin Rewards

Coinbase chief executive Brian Armstrong argued that rewards paid on USDC holdings differ fundamentally from traditional bank‑deposit interest because the stablecoin is fully backed on a 1:1 basis by liquid assets.

Key points from Armstrong’s interview

In a September 19 interview with Money Rehab, Armstrong explained that USDC rewards stem from the economic return generated by the assets backing the stablecoin, such as short‑term U.S. Treasury securities. He asked why consumers should not be able to earn a reward for holding a stablecoin.

Regulatory backdrop

The GENIUS Act, enacted in July 2025, requires permitted payment stablecoin issuers to keep at least one‑to‑one reserves in eligible liquid assets and bars issuers from paying interest directly. The law does not explicitly address rewards offered by exchanges or third‑party platforms.

Armstrong’s distinction

Armstrong emphasized that Coinbase does not issue USDC—Circle does—and that applying bank‑style capital and liquidity rules to Coinbase would overlook the structural difference between a fully reserved stablecoin and a fractional‑reserve deposit account.

Banking industry response

Banking groups, including the American Bankers Association, contend that stablecoin rewards function like deposit interest and could draw deposits away from community banks. They have called for tighter restrictions on such programs.

Legislative status

Efforts to resolve the issue in Washington remain unsettled. On September 15, the Senate failed to achieve cloture on the CLARITY Act, leaving the dispute over stablecoin rewards unresolved.

Implications

The debate highlights a broader clash between crypto firms and traditional banks over who can offer yield on digital dollars and under what regulatory framework.