# OP Mainnet stablecoin supply

> How many stablecoins exist on OP Mainnet, read from each token's totalSupply() at the last block of every UTC day. USD-pegged tokens count at one dollar each (supply, not market cap); EUR stablecoins are shown separately in euro units; bridged copies are labeled and left out of the totals.

Markdown copy of https://voltfincrypto.com/chains/optimism/stablecoins · also as [JSON](https://voltfincrypto.com/chains/optimism/stablecoins.json), [CSV](https://voltfincrypto.com/chains/optimism/stablecoins.csv)

## Answer

As of 2026-10-28, native USD stablecoin supply on OP Mainnet was [$123.74M](https://voltfincrypto.com/data/ground/receipts/rcpt_157062d9f36f91c91457.json) across 1 token, each counted at one dollar (supply, not market cap). USDC was 100.00% (published.share_pct@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_5ccbdfd3f1acab03a437.json)) of it.

## Stablecoins on OP Mainnet

| Stablecoin | Issuer | Peg | Type | Bridge | Supply | 30d change |
| --- | --- | --- | --- | --- | --- | --- |
| USDT | Tether | USD | bridged | optimism_bridge | [$161.46M](https://voltfincrypto.com/data/ground/receipts/rcpt_21537f29acfb7d56c758.json) | -107998874.034727 (published.change@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_21537f29acfb7d56c758.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_5d9560a7b49f5f203eaf.json)), -40.08% (published.change_pct@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_21537f29acfb7d56c758.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_5d9560a7b49f5f203eaf.json)) |
| USDC | Circle | USD | native | — | [$123.74M](https://voltfincrypto.com/data/ground/receipts/rcpt_5ccbdfd3f1acab03a437.json) | -33121936.605103 (published.change@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_0ccc14d9a16b81f5185f.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_5ccbdfd3f1acab03a437.json)), -21.12% (published.change_pct@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_0ccc14d9a16b81f5185f.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_5ccbdfd3f1acab03a437.json)) |
| USD₮0 | Tether | USD | bridged | usdt0 | [$53.61M](https://voltfincrypto.com/data/ground/receipts/rcpt_02d1ff9adfb06bc7dcde.json) | -1948595.796897 (published.change@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_02d1ff9adfb06bc7dcde.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_4b86485f62d1e8948c33.json)), -3.51% (published.change_pct@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_02d1ff9adfb06bc7dcde.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_4b86485f62d1e8948c33.json)) |
| USDC | Circle | USD | bridged | optimism_bridge | [$18.65M](https://voltfincrypto.com/data/ground/receipts/rcpt_3236776bb54d2f81f85c.json) | -2533935.946596 (published.change@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_3236776bb54d2f81f85c.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_789eaea839412440daeb.json)), -11.96% (published.change_pct@1 over [1](https://voltfincrypto.com/data/ground/receipts/rcpt_3236776bb54d2f81f85c.json) [2](https://voltfincrypto.com/data/ground/receipts/rcpt_789eaea839412440daeb.json)) |

On 2026-10-28 (UTC); change against 30 days earlier.

All chains: https://voltfincrypto.com/stablecoins

## Data

- Stablecoin supply by token, daily: `stablecoin_supply_daily@20261029T183108Z-f7eef32c56cb`, as of 2026-10-28 · [CSV](https://voltfincrypto.com/data/ground/datasets/stablecoin_supply_daily/v/20261029T183108Z-f7eef32c56cb/data.csv) (sha256 0x3a7f26ba64bf2fc9f70f741d7fd9dfa625853a933a4866aab9967712535e6754)
- Native stablecoin supply by peg, daily: `stablecoin_supply_totals_daily@20261029T183108Z-6052e8e60974`, as of 2026-10-28 · [CSV](https://voltfincrypto.com/data/ground/datasets/stablecoin_supply_totals_daily/v/20261029T183108Z-6052e8e60974/data.csv) (sha256 0x925430d085b1732f384f0e82b3781563d661eb0537c46efa355fb10d5f7066b7)
- Stablecoins tracked: `stablecoins@20261029T183108Z-b64203ebe513`, as of 2026-10-28 · [CSV](https://voltfincrypto.com/data/ground/datasets/stablecoins/v/20261029T183108Z-b64203ebe513/data.csv) (sha256 0x80d89b63aad18a3128920c0745e3dcf493a3d4c85e4378c780afdcf4a43755b2)

License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Every number links to its receipt; a missing value is shown as missing, never as zero.