Optimism, one of Ethereum's largest Layer 2 scaling networks, expects its circulating supply to reach 2.504 billion OP by April 2027, representing approximately 58.3% of the token's total supply. However, figures presented in the project's latest budget update do not fully reconcile, raising questions about the precise unlock trajectory — an important metric for OP holders and ecosystem participants tracking dilution.

The Optimism Foundation published its Year 4 budget update and Year 5 outlook on Aug. 6. At that time, it reported 2.161 billion OP in circulation against a total supply of 4.295 billion OP.

Supply Figure Discrepancies

Moving from the current circulation figure to the projected Year 5 endpoint would imply an increase of roughly 343 million OP. Yet the itemized forecast accounts for only 272.9 million OP across listed categories.

The ecosystem fund represents the largest allocation at 200 million OP, followed by early contributors at 47.6 million OP, investors at 15.3 million OP, and the governance fund at 10 million OP. The remaining 70.1 million OP is unaccounted for across these listed categories when compared with the Aug. 6 circulation baseline.

Optimism's financial year began in May, but the Foundation did not provide an opening balance that would directly link its forecasts to the ending figure. No releases are forecasted for airdrops or Retro Funding. Optimism noted that the projections are directional estimates subject to revision based on program outcomes and governance decisions.

A second discrepancy exists between the budget figures and Optimism's publicly available supply tracker. The budget update lists 2,160,975,703 OP in circulation, while the supply tracker reports 2,286,467,356 OP — a difference of approximately 125.5 million OP. The Optimism Foundation has not explained the reason for this divergence.

For context, token supply transparency has become a focal point across the Layer 2 sector, where multi-year unlock schedules tied to team, investor, and ecosystem allocations can significantly shape circulating supply over time. Investors and governance participants in projects such as Arbitrum, Starknet, and zkSync have similarly scrutinized disclosure practices.

Without reconciliation, the 2.504 billion OP endpoint cannot be treated as the complete unlock schedule. Token releases do not necessarily result in immediate market sales.

Year 4 Token Allocation

Optimism allocated approximately 150 million OP during Year 4, a 33% reduction from the 229.92 million OP allocated in Year 3.

Governance fund releases declined 53% to 13.4 million OP. Retro Funding releases fell 30% to 14.2 million OP, and no user airdrops were conducted during the period. The Ecosystem Fund circulation, however, increased 53% to 208.5 million OP, primarily due to vesting schedules and milestones reached by earlier partner grants.

Retro Funding was paused following final payments for Season 7 missions. Approximately 777.6 million OP remains available for future rewards.

Future Distribution and Partnerships

Future token distribution will cover OP Mainnet and OP Enterprise clients, supporting fully managed, self-managed, and OP Mainnet deployment options for exchanges, payment systems, and financial institutions.

Optimism highlighted several partnership agreements, including Bitpanda Vision Chain, Ink, and GIWA Chain by Dunamu. The Foundation also noted 70,000 active ether.fi cards and $220 million in total value locked.

These partnerships form part of Optimism's broader Superchain strategy, which aims to build a network of interoperable chains sharing the OP Stack — Optimism's open-source technology framework.

Buyback Program Progress

In January, governance approved a 12-month buyback plan requiring 50% of revenue from eligible Superchains to be allocated toward monthly OP buybacks. By Aug. 6, over 9 million OP had been purchased under the program — a figure considerably smaller than the 343 million OP increase implied by the budget estimates.

Buybacks, circulation changes, and market sell-offs represent distinct token flow streams. Optimism stated it plans to provide its next budget update by June 2027.