While crypto markets spent much of 2025 debating which blockchain would dethrone Ethereum, stablecoin issuers were busy printing money - on Ethereum.
Key Takeaways
Stablecoin issuers pulled in ~$5B from Ethereum alone in 2025, cementing it as crypto’s dominant settlement layer
Tether and Circle combined for nearly $8B in revenue, making stablecoins the most profitable crypto sector
Ethereum holds 70% stablecoin market share when Layer-2 networks are included
The stablecoin market could hit $500B by end of 2026, with Ethereum processing the bulk of it
Roughly $5 billion in revenue flowed to stablecoin issuers through deployments on the Ethereum network last year, according to on-chain data. The figure isn’t just a headline number. It reflects a structural reality that competitors have struggled to disrupt: when it comes to moving dollar-pegged assets at scale, Ethereum remains the infrastructure of choice.
Stablecoin supply on the network grew by $50 billion over the course of the year, closing 2025 above $180 billion. The fourth quarter alone accounted for approximately $1.4 billion of that revenue – a figure that tracks directly with the supply surge that characterized the final stretch of the year.
The Business Model Is Simple. The Margins Are Not.
The mechanics behind these numbers aren’t complicated. Issuers take in fiat, park the reserves in U.S. Treasuries and other interest-bearing instruments, and collect the yield. With global interest rates remaining elevated through most of 2025, that passive income stream turned into a significant profit center.
Tether led the pack, generating $5.2 billion in total revenue across all chains – making it the single highest-earning entity in the entire crypto industry. Circle, which runs USDC, reported $2.75 billion in revenue, a 64% year-over-year increase. That growth came with a caveat: operating expenses tied to its Nasdaq listing pushed Circle into a net loss of $70 million for the year.
Sky, the protocol formerly known as MakerDAO, added $363.9 million to the sector’s total. Across the board, stablecoin issuers accounted for 65.7% of all protocol revenue in crypto – roughly $8.3 billion combined.
Ethereum’s Grip Holds – For Now
Solana, Tron, and a growing list of Layer-2 networks have chipped away at Ethereum’s dominance in various corners of the market. Stablecoins have not been one of them. When Layer-2 networks built on Ethereum’s architecture are included, the chain controls roughly 70% of stablecoin deployment globally.
Analysts including Arthur Hayes have pointed to this as evidence of a broader institutional shift – one where Ethereum is increasingly treated not as a speculative asset but as foundational settlement infrastructure. The argument is less about token price and more about where serious capital actually moves.
What Comes Next
Forecasts for the stablecoin market range from optimistic to aggressive. Some projections put total market size at $500 billion by December 2026, with Ethereum handling the majority of that volume. ETH price targets for the same period run from a conservative $3,500–$5,000 to institutional bull cases pushing $7,000–$20,000.
The risks are real, however. Regulators have grown more focused on AML and KYC compliance within permissionless environments, and the concentration of leveraged activity in DeFi protocols raises systemic questions that haven’t been fully answered. A liquidity crisis in a major lending protocol could ripple outward in ways that the broader financial system isn’t yet equipped to absorb.
For now, though, the numbers tell a straightforward story. Stablecoin issuers found a reliable revenue engine in 2025. It ran on Ethereum.
