OP (Optimism) vs MSETH (Base) — every figure is the freshest dated measurement we hold for that token, never a live-feed guess. Prices stamped 2026-10-15 / 2026-10-16.
| OP | MSETH | |
|---|---|---|
| Price | $0.1415 | $2.17K |
| Market cap | $282.95M | $51.09M |
| 24h volume | $2.97M DEX | $1.24M DEX |
| Liquidity | $1.21M | $3.64M |
| FDV | $528.47M | $22.59M |
| Holders | 1,370,095 | 6,036 |
| Age (days) | 1,616 | 516 |
| Safety grade | B | B |
OP at 0x4200000000000000000000000000000000000042 is the Optimism Collective's governance token — the canonical OP Mainnet deployment sitting in the chain's own vanity address space, not a bridged copy. The October 9, 2026 snapshot counts 1,370,095 holders around a $283.0 million market cap, $528.5 million fully diluted against a 4.3 billion total supply — the gap between the two figures is the unissued allocation the Collective still holds.
The contract posture is worth quoting exactly. Minting is still active — new supply can be minted, consistent with OP's ongoing distribution schedule. Freeze is revoked, and the code is not a proxy. Depth is the soft spot: $1.2 million of tracked pool liquidity is thin against a nine-figure cap, and $2.8 million of 24-hour volume means ordinary exits clear but size should be measured against the pool, not the headline.
msETH is Metronome Synth's synthetic ether — a collateral-minted synthetic that tracks ETH's price through the Synth engine's mint-and-pool mechanics rather than by holding ether itself. The contract 0x7ba6f01772924a82d9626c126347a28299e98c98 is the Base deployment our scan tracks, at $3.6 million of pool liquidity as of October 6, 2026.
The honest note: msETH is not ETH and not a claim on ETH — synthetic assets trade at whatever the pool clears, which can sit far from the underlying's price (our current read has it at a steep discount to spot ether). Exposure through a synth is exposure to the synth's own liquidity and redemption mechanics first. If you want ETH on Base, bridged or wrapped ETH is the honest instrument; this is a different product.
By tracked market cap: OP (Optimism) measures $282.95M and MSETH (Base) measures $51.09M — dated snapshots, not a live feed.
On the contract checks we publish: OP (Optimism) grades B and MSETH (Base) grades B. A grade is a structural check on the contract, not a promise about the asset.
Between 2026-09-21 and 2026-10-15T21:43:45, the measured snapshots show OP at +8.72% and MSETH at −12.4%.
The grade column is the one CMC's compare page cannot print — our grade is computed from the contract itself (mint/freeze authority, liquidity, holder concentration). Changes are measured over the shared window stated on the chart, 2026-09-21→2026-10-15T21:43:45; a token with fewer measured points measures a shorter span inside it.
Figures are dated on-chain snapshots, not a live feed. Safety grades are structural checks — not investment advice. Free · no signup · a HostDeFi product.