The $490 Billion Question: Who Gets the Yield?4900 亿美元之问：收益归谁？

The Setup

U.S. banks retain roughly $490 billion annually by deploying depositor capital at a 3.22% net interest margin — while paying depositors close to nothing. This isn’t a bug. It’s the business model.

Stablecoins threaten to break this arrangement. If a USDC or USDT holder can earn 4-5% yield backed by Treasurys, why would anyone keep money in a checking account earning 0.01%?

The Battle Lines

The fight is now in Congress. The Clarity Act — companion to last year’s Genius Act — would set up a regulatory framework for stablecoins. The sticking point: can crypto firms offer yield on stablecoins?

• Banks say no. JPMorgan and Bank of America cite a Treasury study showing banks could lose up to $6.6 trillion in deposits if stablecoins offered yield. Jamie Dimon warns it could destabilize smaller banks and cut off business lending.

• Crypto says yes. Coinbase CEO Brian Armstrong argues consumers deserve to earn on their money. Stablecoins backed by Treasurys would actually boost demand for U.S. debt.

• Trump picked crypto. In a social media post on March 4, Trump backed the crypto industry: “Americans should earn money on their money. This industry cannot be taken from the People of America.” He met with Armstrong at the White House hours before the post.

Key Takeaways

• The net interest margin game is ending. Whether through stablecoins or fintech, the era of banks earning 3%+ spread on deposits while paying nothing is structurally challenged.

• $6.6T deposit flight is the real fear. If even 10% of bank deposits migrated to yield-bearing stablecoins, that’s $660B — enough to stress regional banks.

• Stablecoin yield = treasury demand. Every dollar in a yield-bearing stablecoin needs to be backed by Treasurys. This is quietly bullish for U.S. debt absorption.

• Regulatory clarity is the catalyst. If the Clarity Act passes with yield provisions, expect a wave of institutional stablecoin products. If banks kill it, the innovation moves offshore.

Why It Matters

If you hold stablecoins earning 4-5% today, you’re already positioned for this shift. The question is whether yield-bearing stablecoins become the default savings vehicle or stay a crypto-native niche.

What to watch:

• Clarity Act vote timeline — if it passes with yield provisions, institutional stablecoin products will flood the market. Position before, not after.
• Regional bank stress — even modest deposit outflows could trigger M&A or failures among smaller banks. Short regional banking ETFs could be a hedge.
• Stablecoin issuer tokens — protocols that facilitate on-chain yield (Maker, Ethena, Mountain) stand to capture massive inflows if regulation blesses this model.

The political signal is clear. Whether the bill passes or not, the direction is set: yield is moving from banks to holders. The only question is how fast.