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USD Coin·USDC·Optimism
USD Coin (USDC) · Optimism · on-chain safety read, grade B (80/100)
Data snapshot: 2026-09-27 · source: live token feeds + on-chain flags · refreshed weekly · not financial advice
BB · see the safety checks › Swap USDC safely →USDC price and market data
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Explorer optimistic.etherscan.ioDated price measurements: 4, 2026-09-26 to 2026-09-27. Each point is a measurement, not an interpolation.
Dated price measurements: 53, 2026-09-21 to 2026-09-27. Each point is a measurement, not an interpolation.
Trade USDC
Live quote and wallet connect open in the app — free, non-custodial.
USDC to USD converter
Global USDC prices
NexFlow score: higher = safer (0–100)
- upgradeable proxy contract — the code behind the address can be swapped after you buy
- the pool is large in dollars but thin against this token's own market cap — size an exit against the pool, not the cap
- contract-level controls not assessed in this snapshot — verify with a live scan
- contract source code is verified
- the creator wallet holds under 5% of supply (<0.01%) dev-wallet flags
Re-scan USDC live before you trade
On-chain state changes — verify the current read, then swap non-custodially if it clears.
What the data says about USDC
Two assets answer to "USDC" on Optimism, and this is the native one: Circle's own issuance at 0x0b2c639c533813f4aa9d7837caf62653d097ff85, the mint that CCTP burns and mints against directly. The bridged predecessor — USDC.e, routed through the canonical bridge — lives at its own address on its own page in this index, and the difference between the two is the entire point of this page.
The September 27, 2026 snapshot reads $9.6 million of tracked pool liquidity and $16.7 million of 24-hour volume on the Optimism-local supply — 163.3 million units priced $161.5 million fully diluted — inside a ticker whose asset-wide market cap prints $75.2 billion. The "thin against cap" flag is arithmetic, not commentary: a redeemable stablecoin's real depth lives at the mint and across every venue combined, not in the pools any single index enumerates.
Graded B, 811 days on record. The note that matters is the address, not the flag: before approving a contract named USDC on Optimism, confirm the dapp wants the native mint — the same ticker is shared by a legacy claim.
Figures dated September 27, 2026; the live scan refreshes them.
Price and safety history of USDC
Every dated snapshot we hold for USDC — price, market structure and grade, as measured, with nothing interpolated between them.
| Date | Price | Market cap | Liquidity | Holders | Grade |
|---|---|---|---|---|---|
| 2026-09-27 | $0.9987 | $75.18B | $9.63M | 628,653 | B |
| 2026-09-26 | $1.00 | $75.40B | $10.00M | 628,653 | B |
| 2026-09-21 | $1.00 | $74.42B | $10.00M | 628,653 | B |
Contract
0x0b2c639c533813f4aa9d7837caf62653d097ff85
Verify USDC by this address, never by name or ticker.
Put the USDC grade on your site
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<a href="https://nexflowscan.com/token/optimism/usdc/" target="_blank" rel="noopener"><img src="https://nexflowscan.com/api/badge/optimism/0x0b2c639c533813f4aa9d7837caf62653d097ff85.svg" alt="USDC safety grade B on NexFlow"></a><iframe src="https://nexflowscan.com/embed/badge/optimism/0x0b2c639c533813f4aa9d7837caf62653d097ff85" width="380" height="62" style="border:0" loading="lazy" title="USDC safety grade — NexFlow"></iframe>[](https://nexflowscan.com/token/optimism/usdc/)https://nexflowscan.com/token/optimism/usdc/FAQ
Is USDC a safe token?
As of the 2026-09-27 snapshot, USDC scores 80/100 (grade B) on NexFlow's on-chain read — based on a contract that has unconfirmed mint controls, has unconfirmed freeze and blacklist controls, liquidity of $9.63M and 628,653 holders, with the creator wallet holding <0.01% of supply. That grades contract and market structure, not price direction — a clean read is not a guarantee, so re-scan before trading, since on-chain state can change.
Can you sell USDC, or is it a honeypot?
Our Optimism read covers market structure, not sell-side contract behaviour like honeypots or transfer taxes, as of 2026-09-27. Before assuming you can exit freely, run the live scan above — it reads the contract directly.
Who holds most of USDC?
The wallet that created USDC holds <0.01% of the supply as of 2026-09-27 — a small stake, under the 5% the scanners flag. That sits alongside a holder base of 628,653; a broad base lowers the odds that any one seller can steer the price, but the creator's share is the number to watch first.
Can USDC's supply be inflated?
This snapshot grades market structure only — contract-level supply controls on Optimism aren't assessed here yet. Run the live scanner, which reads the contract in real time.
What is the USDC contract address?
The USDC contract address on Optimism is 0x0b2c639c533813f4aa9d7837caf62653d097ff85. Always verify a token by its contract address, not its name or ticker — scam clones copy tickers, but the address is unique.
Where can you buy USDC safely?
Run the live on-chain scan at the top of this page first; if USDC clears, you can swap it here directly. Whatever venue you use, match the contract address (0x0b2c639c533813f4aa9d7837caf62653d097ff85) exactly before trading — copying the ticker is how clone scams catch buyers, and the address is the one field they can't fake.
