Commentary

Stablecoins as the new cash back: Bridget Harris on yield becoming consumer standard

Feb 28, 2025

Key Points

  • Stablecoin yield is becoming table stakes in consumer fintech as Coinbase offers 4.1% APY on USDC and Robinhood pushes tiered rates, mirroring how cash back normalized on credit cards.
  • Stablecoin supply will climb substantially as yield expectations stick with consumers, but momentum depends on sustained high interest rates.
  • Tether and other stablecoin issuers capture yield premiums directly from these products, effectively printing money at scale while retail access to the tokens themselves remains structurally limited.

Summary

Stablecoins as the new cash back: Yield becoming consumer standard

Bridget Harris, a partner at Founders Fund, argues that stablecoins are becoming the primary mechanism for delivering yield to consumers, and this shift will reshape fintech as fundamentally as cash back did for credit cards.

The mechanism is straightforward: once consumers experience yield on stablecoins, the expectation becomes sticky. Harris notes that Latin America is the first mover, but major US fintech platforms are now rolling out yield offerings as standard features. Coinbase automatically offers 4.1% APY on any USDC held on its platform. Robinhood is pushing different APY rates for subscribers. The pattern mirrors how cash back worked—it started as a novelty, became normalized, and is now table stakes. Going backward is hard once users have adjusted to free money.

The supply implication is material. Harris predicts stablecoin supply will climb substantially as yield becomes the default expectation rather than a selling point. The constraint, though, is environmental: high yield on stablecoins depends on high interest rates. In a zero-rate environment, generating meaningful APY becomes difficult, which suggests the current momentum is partly rate-dependent.

There is irony in the timing. Balaji Srinivasan, through his company 21 Co, was theoretically formative in exploring stablecoins and micropayments years ago, but the technology wasn't ready at scale. Now the infrastructure exists, yet one structural oddity persists: the tokens themselves—like Tether—are hard for retail investors to access directly, even as the yield products built on them see mainstream adoption. Tether and similar issuers capture the yield premium directly, which amounts to printing money at scale.