What is Optimism (OP)?

Optimism began as an optimistic rollup much like Arbitrum: execute off Ethereum, post data back, assume validity unless challenged. Then it did something unusual — it open-sourced the whole thing as the OP Stack and invited everyone to launch their own chain with it.

That decision defined it. Coinbase's Base runs on the OP Stack. So does World Chain, and dozens of others. Collectively they form the Superchain: separate chains sharing the same codebase, a common bridge standard and, increasingly, shared sequencing. The Superchain now carries more than 60% of Layer-2 fee market share and around 13% of all on-chain transactions.

Giving away the software and taking a share of what gets built with it is a strategy with a long history in enterprise infrastructure and almost none in crypto. It worked.

Retroactive public goods funding

Optimism's other distinctive idea is that it is easier to judge what was useful than to predict what will be. Rather than granting money upfront for proposals, it pays for work after the fact, in rounds, based on demonstrated impact. Tens of millions have been distributed this way. It has funded real infrastructure and it has also funded a certain amount of grant-seeking, which is the honest assessment of every funding mechanism ever devised.

The Law of Chains, and who actually decides

Optimism governs through a two-house system — a Token House of OP holders and a Citizens' House of individuals selected non-financially — with a published set of commitments, the Law of Chains, governing how Superchain members relate to each other. It is a more thought-through constitutional design than most DAOs have, and it is also more complex, which in governance is not automatically a virtue.

• Governance across the Token House, including protocol parameters and Superchain terms.
• Funding decisions in the retroactive public goods rounds.
• The buyback programme, which turns Superchain revenue into open-market OP purchases.
• Not gas — Optimism transactions are paid in ETH, as on most rollups.

The buyback is the thing to understand here

On 28 January 2026 Optimism governance approved, with 84.4% support, a twelve-month pilot beginning that February: 50% of all net sequencer revenue generated across the Superchain is used for monthly open-market purchases of OP.

That is a direct mechanical link between chains Optimism does not operate — Base, World Chain and the rest — and demand for its token. Every other major Layer 2 leaves the connection between network success and token value as an argument. Optimism made it an arithmetic one.

Two caveats, both material. It is a pilot, renewable rather than permanent, and governance can end it. And the base is net sequencer revenue, which fell across the industry after Fusaka made blob space cheaper in December 2025 — the mechanism is sound and the amount flowing through it is a function of margins that are compressing. Against the ~$14m the Collective captured in Q1 2026, half is a real number, not a transformative one.

OP's total supply is a little over 4 billion, allocated across ecosystem funds, airdrops, core contributors and investors, with unlocks that have run through the years since the 2022 launch. A large share sits with the Collective and is distributed through governance and funding rounds.

The supply structure is not the interesting part; the revenue flow is. Before 2026, OP's story was the same as every governance token — a claim on decisions, not on money. The buyback makes it partly a claim on revenue, for as long as governance keeps voting for it.

What actually generates the revenue

Chains built on the OP Stack pay a share of their sequencer revenue to the Collective. Base is by far the largest contributor. That creates an unusual dependency worth naming: Optimism's token economics depend substantially on how well Coinbase runs a chain Optimism does not control.

OP cannot be staked. Security comes from Ethereum, not from bonded OP, so there is no validator set and no protocol yield.

Delegating voting power is the participation mechanism, and unlike most governance it now allocates real revenue. It pays nothing directly. Any OP yield product is lending or liquidity provision, with the counterparty risks those carry.

Dependence on chains it does not run

The Superchain's revenue, and therefore the buyback, depends heavily on Base. Coinbase decides Base's fee policy, its roadmap and ultimately whether it stays on the OP Stack at all. Optimism's most important economic input is somebody else's product decision.

Margin compression

Fusaka cut the cost of blob space in December 2025, which lowered what rollups pay Ethereum and intensified competition on what they charge users. Sequencer revenue across the industry is under pressure, and the buyback is a fixed percentage of a shrinking base.

The buyback is revocable

A twelve-month pilot approved by vote can be declined at renewal by vote. Pricing OP as though the mechanism is permanent is pricing in a decision that has not been made.

Sequencer centralisation and untested fraud proofs

As with every optimistic rollup in production: sequencing is centralised, and the fraud-proof system that underwrites the security model has not been exercised by a real adversarial event at scale. Shared sequencing across the Superchain is the plan and is not finished.

Governance complexity

Two houses, retroactive funding rounds, the Law of Chains and a revenue-allocation vote is a lot of machinery. It was designed to resist capture. It also raises the cost of participating, which tends to concentrate influence among the people who can afford to keep up.