OP Inflation Analysis · July 2026 · Supply growing, projected to keep growing

Optimism is a fixed-cap token that is still inflationary by its vesting. OP can never exceed 4,294,967,296 and has no protocol mint, yet over the last 90 days about 135.7M OP vested out of the original allocation and into the 2.29B circulating float — most of it in a single mid-July cliff. A real revenue buyback absorbs only about 4.7M OP a quarter, so the framework reads +5.73% net against a supply monitor at +6.31%. With a 116M OP unlock scheduled for Sep 21 2026, the next quarter looks just as inflationary.

The verdict, in one paragraph

For the 90-day window ending Jul 31 2026, the Pressure Framework reads OP at +5.73% net. Sell pressure totals 135.7M OP of vesting and buy pressure totals 4.7M OP of buyback, against a circulating base of 2.29B OP. Our supply monitor reads the realised change at +6.31%, a gap of about 0.58 percentage points, which is just over tolerance and ships a monitor-gap chip on the OP overview. The gap is by mechanism, not error: the buyback buys OP off the open market and parks it in a treasury wallet the monitor still counts as circulating, so the framework nets out roughly 4.7M OP the monitor does not, and the small remainder is the denominator base convention. OP is best characterised as inflationary on a fixed cap — capped in the long run, but heavily front-loaded with vesting the market is still absorbing.

Sell pressure: where new OP comes from

Sell #1, protocol inflation, is 0, and it always will be. Optimism does not mint OP to secure the chain — the L2 is settled and paid for in ETH, and the OP token supply is fixed at 4.29B. So unlike an uncapped proof-of-stake L1, there is no ongoing issuance. Every unit of supply growth comes from Sell #2, vesting unlocks, which is 135.7M OP for the window. This is the original token allocation — core contributors at 19%, investors at 17%, and the Foundation-run seed, partner, governance and ecosystem funds, plus user airdrops and RetroPGF — vesting out of lockup and into the tradable float. The proof is on-chain: circulating supply sat flat near 2.15B from late April through Jul 6, then stepped up by roughly 121M OP into mid-July, then went flat again at 2.29B. OP does not drip; it releases in lumps.

Sell #3, Foundation and unscheduled unlocks, is 0 as a firing, but it is the largest overhang on the page: about 2.01B OP — nearly half the cap — is still non-circulating across the ecosystem, partner, governance and seed funds and the Foundation treasury. That supply is released on the published vesting schedule already captured in Sell #2, and no separate off-schedule sale was observed, so it is monitored rather than booked. Sell #4, long-term locked or bankruptcy, is 0: Optimism has no estate, trustee or court-ordered distribution.

Buy pressure: where new OP goes

The buy side has one genuine mechanism. Buy #1, programmatic buyback, is 4.7M OP for the quarter. In January 2026 the Optimism Collective voted, with 84.4% in favor, to direct 50% of net Superchain sequencer revenue into recurring OP buybacks — a 12-month pilot that has executed monthly since February, buying roughly 1.575M OP a month through over-the-counter vendors to limit market impact. Crucially, the repurchased OP is held in a treasury wallet, not burned: on-chain that wallet holds about 9.45M OP as of Jul 31 2026, and governance will later decide whether those tokens are burned, staked, or redeployed. So the buyback removes float today but is not yet a permanent sink.

The other three buy rows are zero. Buy #2, protocol fee burn, is 0 because OP Mainnet charges gas in ETH and the base-fee burn destroys ETH, never OP — network usage does not remove OP the way it removes the gas token on some chains. Buy #3, Foundation buy, is 0 beyond the revenue buyback already counted; no separate open-market purchase has been disclosed. Buy #4, new long-term lock, is 0: OP has no protocol staking and no new lockup contract was deployed in the window. The result is a lopsided ledger — 135.7M OP of vesting against 4.7M OP of buyback, a roughly 29-to-1 imbalance.

Foundation and overhang

Two team-controlled overhangs sit behind the float. The first is the non-circulating allocation: about 2.01B OP, the gap between the 4.29B cap and the 2.29B circulating, spread across the ecosystem, partner, governance and seed funds and the Foundation treasury, released on a vesting schedule that extends into 2029. The second is the buyback treasury wallet at 0x36c4E68d…, which holds about 9.45M OP of repurchased tokens whose fate governance has not yet decided. Both are re-read on every rebuild. If the buyback wallet's balance falls between refreshes — a governance decision to redeploy the held OP — that outflow enters Sell #3 at the next refresh; and any off-schedule Foundation sale would land there too.

How OP compares to other capped rollup tokens

The cleanest comparison is another capped rollup governance token like Arbitrum's ARB. Both share the same structure: a hard-capped supply, no protocol mint, and a multi-year vesting schedule that keeps releasing team, investor and ecosystem allocations into the float long after launch. For both, the headline "fixed cap" understates the near-term inflation, because the market is still absorbing the difference between circulating and fully diluted supply. OP's circulating is only about 53% of its cap, so roughly 2.01B OP of scheduled dilution is still ahead — the token behaves inflationary despite the ceiling.

Where OP differs is the buyback. Most L2 governance tokens have no revenue-to-token pipe at all; OP is unusual in routing 50% of Superchain sequencer revenue into OP purchases. But the scale gap is the point: sequencer revenue funds only about 4.7M OP of buying a quarter, while vesting adds 135.7M OP. Against an uncapped proof-of-stake L1 that mints continuously, OP at least has a finite ceiling and a shrinking release runway; against a deflationary fee-burn token, OP is the opposite — its supply is still expanding, and its one buy mechanism holds rather than burns. That makes OP a front-loaded, cap-bounded inflation story rather than a scarcity one.

What to watch in the next 90 days

First, the Sep 21 2026 unlock of about 116M OP — roughly 6.89% of circulating — the single largest cliff in the forward schedule and the main reason the next-90-day reading stays inflationary. Second, whether the buyback pilot is renewed or expanded when its 12-month term ends, and whether governance votes to burn the roughly 9.45M OP already held, which would turn Buy #1 from a temporary hold into a permanent sink. Third, the monthly buyback execution reports, since a higher OP price or higher Superchain revenue would grow the quarterly buy above 4.7M OP. Fourth, any Foundation transparency post signalling an off-schedule ecosystem-fund deployment. Fifth, smaller seed-fund unlocks around Oct 11 2026 that add to the drip.

Summary

Optimism is a fixed-cap token that still reads inflationary: OP cannot exceed 4.29B and has no protocol mint, but about 135.7M OP vested into the float over the last 90 days — largely one mid-July cliff — against only 4.7M OP of revenue buyback, for a net of +5.73% versus a monitor at +6.31%. The structural fact is that circulating is only about 53% of the cap, leaving roughly 2.01B OP of scheduled dilution ahead, with a 116M OP unlock due Sep 21 2026. The key risk is that the one offsetting mechanism, the Superchain-revenue buyback, holds its OP in treasury rather than burning it, so unlike a deflationary token OP's supply keeps expanding while the vesting schedule runs.

MrNasdog Pressure Framework analysis of Optimism (OP), Metric 1 — Inflation. Data + explanation only. Not financial advice. Updated July 31 2026.