EVM
Layer 2 (Ethereum)
on Ethereum
OP Mainnet
$540M
total stablecoin supply · source: DefiLlama · 22 June 2026
Ethereum L2 and creator of the OP Stack powering multiple chains. Significant USDC and USDT liquidity from DeFi protocols.
Network Details
| Launched | 2021 |
| Consensus | Optimistic Rollup (OP Stack) |
| Parent chain | Ethereum |
| EVM | Yes |
| Website | optimism.io |
Stablecoins on OP Mainnet
8 stablecoins with at least $1M supply · ranked by supply on this chain · source: DefiLlama
| # | Stablecoin | Type | Supply on OP Mainnet |
|---|---|---|---|
| 1 | USDT Tether | Fiat | $202M |
| 2 | USDC USD Coin | Fiat | $177M |
| 3 | USDS Sky Dollar | Crypto | $100M |
| 4 | BUIDL BlackRock USD | Fiat | $26M |
| 5 | DAI Dai | Crypto | $14M |
| 6 | USX dForce USD | Crypto | $8M |
| 7 | SUSD sUSD | Crypto | $6M |
| 8 | ALUSD Alchemix USD | Algo | $3M |
Frequently Asked Questions
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What stablecoins are available on OP Mainnet?OP Mainnet hosts 8 stablecoins with at least $1M supply, totalling $540M as of 22 June 2026. The largest are: USDT, USDC, USDS, BUIDL, DAI.
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What is the total stablecoin supply on OP Mainnet?The total stablecoin supply on OP Mainnet is $540M as of 22 June 2026, according to DefiLlama.
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Is OP Mainnet EVM-compatible?Yes, OP Mainnet is EVM-compatible, meaning Ethereum tools and wallets work natively.
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What is OP Mainnet built on?OP Mainnet is a Layer 2 (Ethereum) built on Ethereum. It inherits Ethereum's security while providing lower fees and faster transactions.