The short version: Ethena runs USDe, a crypto dollar that earns yield, and ENA is the token that governs it. On August 27, 2026 the Ethena Foundation bought out all but one of the large early investors who had been selling, collapsed the rest of the investor unlock schedule into one final release on October 5, 2026, and asked ENA holders to approve routing protocol revenue into buying ENA off the market. The unlock rewrite is unconditional and dated. The buyback is conditional: it starts only if USDe nearly doubles in size first.

The full package, from the Foundation's ecosystem update:

• The buyout. The Foundation bought the unvested tokens of all but one of the large early investors who had sold since the market peak, at undisclosed terms.
• One final unlock. ENA's monthly investor unlock schedule ends with a single release on October 5, 2026, and nothing after it.
• IP to the Foundation. Ethena Labs and the Foundation agreed in principle to move the protocol's intellectual property and economic value to the Foundation.
• A fee-switch vote. A governance vote opened the same day on the mechanism that would start the buybacks.

ENA rose 28.9% in the thirteen hours after the announcement and traded 3.5% above the pre-announcement price five days later.

Sections 1 and 2 cover what happened, in plain terms and from the primary sources; sections 3 to 8 measure what it actually changes, and the numbers Ethena did not publish. Dollar figures are marked at $0.1510 per ENA, the price on September 1, 2026.

Key Takeaways

• One final unlock of roughly 1.41B ENA on October 5, 2026 absorbs every investor tranche after it and ends investor vesting 17 months early. It is about $212M at today's price and 14.3% of the circulating supply. Ethena has not stated the exact token count; the figure is the remainder of the published schedule.
• The Foundation bought out every large seller but one, at an undisclosed price. It acquired the full unvested positions of investors allocated more than 0.25% of supply who sold anything after the October 10, 2025 market peak; a single wallet declined. The investors who never sold were offered par, a buyout at full price with no discount, and all thirty wallets refused. Neither the token count nor the cost was disclosed.
• What stays locked after October 5 depends on whose accounting you use. Dated team and Foundation vesting still holds 15.5% of max supply, and circulating-supply arithmetic implies another 1.09B of ecosystem tokens with no published dates: 3.42B ENA in total, 22.8% of max supply, not yet in circulation. Ethena's own chart, labeled approximate, puts post-transaction locked supply at about 12% on the same base.
• The buyback is proposed, on track to pass, and not armed. The vote closes September 2, 2026 and stood past quorum with none against two days in. If it passes, the fee switch activates at $7.5B of USDe supply. USDe stands at $4.12B, so supply must grow 82% before the first dollar is spent.
• At the first milestone, a year of buyback roughly equals one month of the unlocks that continue. Ethena's own table puts the initial buyback at $22.5M a year, while team and Foundation vesting keeps releasing 134.4M ENA a month, about $20.3M at today's price, until March 2028, with a last Foundation tranche in April.

1. What Ethena is: USDe is the business, and ENA so far has no claim on it

Ethena issues USDe, a synthetic dollar backed by crypto collateral, mainly ether and bitcoin hedged flat with short perpetual futures, alongside liquid stablecoins and other yield-bearing assets (Ethena's docs). The protocol's revenue comes from the funding and basis spread its hedges earn, plus lending, real-world-asset and stablecoin yield on the rest of the backing. Holders who stake USDe collect that yield through sUSDe; section 7 gives the late-August rates. USDe is the business, and its circulating supply is the yardstick every milestone in the fee switch is written against.

ENA is the governance token of that system, and it has never had a claim on the protocol's revenue, which is distributed to USDe stakers and in earlier high-revenue periods funded the protocol's reserve. Staking ENA as sENA has earned token incentives, such as unclaimed airdrop grants, but never revenue. That is the context for two of the four announcement items: the fee switch is the first mechanism that would route revenue to ENA, and moving the IP and economics from Ethena Labs to the Foundation is what would make that routing a property of the token rather than a favor from the operating company.

The supply frame for everything below: 15B ENA max supply, 9.83B circulating. The token launched in April 2024, with the 15B allocated per Ethena's tokenomics documentation (the Launchpool figure per Binance's announcement):

The three vesting rows are the tracked schedule; the ecosystem row's split is implied from circulating supply, using the method section 4 explains. The team and investor tranches vest on the terms the docs publish, a quarter of each tranche at the one-year cliff and linear monthly releases for three years after; the Foundation releases on a parallel monthly track visible in its unlock history; and the ecosystem allocation never received a schedule at all.

Four terms do the work in this piece. An unlock is the scheduled release of tokens that insiders received locked; the lock and its timetable are called vesting. A buyback is the protocol spending revenue to purchase its own token on the market. The fee switch is the governance setting that turns those buybacks on.

2. The August 27 announcement: an investor buyout, one final unlock, IP to the Foundation, and a fee-switch vote

The package, as the Foundation's own materials describe it:

• Investor buyout. The Foundation split investors originally allocated more than 0.25% of total supply into two groups: those who "sold even a single token following the market cycle peak on 10th October 2025", and those who never did. It "acquired all of the locked tokens in OTC transactions over the last two weeks" from the first group, except one wallet which declined to sell. The second group was offered a repurchase "at par with no discount", and, in the blog's words, "Not a single investor agreed." The published wallet list shows 14 wallets bought out, 30 that declined the par offer, and the one seller that declined to be bought out.
• Unlock acceleration. "Effective 5 October 2026, all remaining original investor unlocks have been accelerated" so that no investor tokens remain subject to lockup. "Team tokens remain fully subject to their original lockup and vesting schedules."
• IP and economics to the Foundation. Ethena Labs and the Foundation agreed in principle on a Master Framework Agreement assigning or exclusively licensing the protocol's IP to the Foundation, with residual economics to ENA governance rather than Labs equity holders. The document itself is expected in October 2026, so this leg is a commitment, not yet a signed agreement.
• Fee switch. An ENA Fee Switch proposal opened on Snapshot the same day, voting through September 2, 2026. As of September 1 it stands at 17.6M ENA in favor across 81 votes, none against, past its 5M quorum. Section 6 works through the mechanics.

Where the token stands: $0.1510, a $1.49B circulating market cap against a $2.27B fully diluted valuation, 90.1% below the April 2024 all-time high of $1.52, and up 90.7% over the thirty days to September 1, most of that before the announcement.

3. The deleted calendar: the 78.125M ENA monthly investor line is folded into one 1.41B cliff on October 5

ENA's vesting has run on a fixed monthly rhythm since the April 2025 cliff: investors received 78,125,000 ENA and core contributors 93,750,000 on the 5th of every month, with the Foundation's 40,625,000 landing on the 2nd, a combined 212.5M ENA a month. On the published schedule that rhythm was due to continue until March 2028.

The announcement removes the investor line entirely. Investors held 1,484,375,000 ENA of unvested tokens across 19 remaining monthly events. Assuming the September 5 tranche of 78,125,000 releases as scheduled, the acceleration folds the 17 tranches after October 5 into the tranche October 5 would have carried anyway. Those 17 tranches would have released 1,328,125,000 ENA between November 2026 and March 2028. That single event becomes roughly 1,406,250,000 ENA, about $212M at today's price and 14.3% of the 9.83B ENA circulating. The same day also carries the team's routine 93.75M tranche, taking the day's total to exactly 1.5B ENA.

Ethena itself never states the final unlock's size. The 1.41B figure is arithmetic on the tracked schedule, and it is the number to watch against whatever the Foundation's transparency reporting eventually shows.

Two things make this cliff smaller than it looks:

• Some of it now unlocks to the Foundation itself. The buyout means the unvested tokens of the 14 bought-out wallets release to their new owner, the Foundation, not to third parties. How much of the 1.41B that covers is not disclosed.
• It is small against ENA's reported trading activity. ENA turned over an average of $358M a day in spot trade across the thirty days to September 1, so the full cliff is about three-fifths of one average day's reported volume. For scale, our Monad research put that token's November cliff at 6.8 days of its own 30-day average turnover. Reported spot volume is not order-book depth, but the two cliffs are not in the same class.

The unlocks that survive are the team's 93.75M and the Foundation's 40.625M a month, 134.4M ENA combined, until March 2028, with a final Foundation tranche in April 2028. At today's price that is about $20.3M a month.

4. What stays locked after October 5: Ethena says ~12%, supply accounting says 22.8%

After October 5, this is what has still not reached circulation. The team and Foundation rows are the published vesting schedule. The ecosystem row is implied arithmetic: max supply, minus today's circulating supply of 9,828,125,000 as the market feed reports it, minus today's dated locked schedules, because Ethena has never published a release schedule for that allocation.

Ethena's blog puts it differently: "the ~12% of locked unvested tokens post-transaction relate only to team, ecosystem and foundation" holdings. The footnote on Ethena's own chart states its figures are shares of total ENA supply, the same 15B base used here, so the gap is not a denominator mismatch. The two accountings do not reconcile, and not only because of the undated ecosystem tranche: the team and Foundation schedules alone hold 15.5% of max supply on October 5.

The gap is worth caring about because it is the size of the remaining overhang. Take Ethena's chart at face value and 1.8B ENA is still to come; take the published schedule and circulating supply at face value and it is 3.42B, nearly twice as much future supply for the market to absorb. Anyone repeating "only 12% stays locked" is quoting a figure the project itself labels approximate, and one its own vesting schedule contradicts.

Part of the gap is likely definitional, but definitions cannot close all of it: the team and Foundation schedules alone already exceed the ~12% before any judgment call about the ecosystem. The likeliest definitional piece is StablecoinX, the digital asset treasury vehicle that holds approximately 20% of total supply under a separate, SEC-filed Token Purchase Agreement lockup. Ethena's supply chart counts that stake as its own category, and the published materials do not say how it maps onto circulating supply or onto the vesting buckets, which is precisely the reconciliation that is missing. The blog's tokenomics section also carries the line "All numbers to be updated", so Ethena's own figures are explicitly provisional. Until an exact post-transaction table is published, the vesting schedule is the only dated accounting there is.

5. The buyout: every large seller but one was bought out, at a size and price Ethena has not disclosed

The Monad Foundation's August tender, covered in our Monad research, made one kind of statement: it offered up to $60M at an undisclosed discount, and almost every investor refused. Ethena's version is more forceful in one direction and less transparent in another.

More forceful, because it did not wait for volunteers. Every investor above the 0.25% threshold who had sold since the peak had their entire unvested position bought, except one, and that exception is identified by wallet address in a public CSV. The thirty wallets that never sold were offered par and all refused, which Ethena presents as a conviction signal from its largest holders.

Less transparent, because the terms are missing. Undisclosed: the number of tokens purchased, the price or discount paid, the total cost, and where the money came from. Monad at least published its $60M budget cap; Ethena published no numbers at all. For a program that exists to take former sellers off the cap table, the size of the removed position is the load-bearing number, and readers cannot currently weigh it. The treatment of the repurchased tokens, whether they are burned, held or redeployed, is also unstated.

One scope note: the program only covered investors originally allocated more than 0.25% of supply, so smaller early holders were untouched by both the buyout and the par offer, and their tokens are part of the October 5 release like everyone else's.

6. How the fee switch works: a 5% to 25% revenue take laddered on USDe supply, plus 95% of three new business lines

The proposal contains two separate engines that are easy to collapse into one:

• A take-rate ladder on protocol revenue. The share of revenue directed to ENA buybacks steps up at each USDe circulating-supply milestone. Ethena's own illustrative table, which holds protocol APY constant at 6.0%:

• A 95/5 split on the new business lines. Once the first milestone is hit, "95% of the net revenue" from Ethena's USDe savings product, its whitelabel stablecoin business and a newly announced third line the company itself writes as "Ethena [X]" "would be directed to the buybacks with the remaining 5% to fund growth".

The proposal sets its milestones on USDe circulating supply and does not say how the crossing is measured: a 14-day trailing average was recommended in the Risk Committee's backtesting analysis on the governance forum, but that language is not in the text being voted on. Two further definitions are missing from the published documents: "net revenue" is never defined, and nothing states what happens to the ENA that is bought, beyond the Foundation's commitment to track buybacks on its transparency dashboard.

7. The distance to the switch: USDe must grow 82% before the first buyback dollar is spent

USDe's circulating supply is $4.12B, measured from DefiLlama across every chain it lives on and matching the token contract's on-chain total supply to within $1.9M. The first milestone is $7.5B, so the switch arms only after USDe grows another 82%. Ethena has been there before, which cuts both ways: the $15B row in its own table is labeled as the 2025 peak, so the target is a level the protocol once held rather than pure aspiration, and the current $4.12B shows how much of that supply has since redeemed. On the yield that drives USDe demand, Ethena's own feed showed staked USDe earning 4.75% against a headline protocol yield of 5.09% as of August 26. Whether that is enough to regrow supply toward the milestone is not something this piece forecasts.

Scale matters once the switch is armed. At the first milestone the buyback runs at $22.5M a year on Ethena's illustration. The unlocks that continue release about $20.3M of ENA a month at today's price, so the first year of buyback purchases roughly offsets one month of the remaining schedule. At the $20B tier, the illustrated $240M a year would approach the full $243M annual pace of the remaining unlocks at today's price. Three caveats keep that comparison honest: the buyback figures assume a constant 6.0% APY at every supply level, the remaining unlocks go to the team and the Foundation rather than to the bought-out investors, and the vesting flow itself ends in early 2028 while the buyback, once armed, is open-ended. As a yield on the token itself, $22.5M a year is 1.5% of ENA's circulating market cap and 0.99% of its fully diluted valuation.

8. What to watch next: the dates and disclosures that settle the open questions

• The calendar rewrite takes effect on October 5, 2026. After it, ENA has no investor vesting. The scheduled supply question becomes team and Foundation flow to early 2028, plus roughly 1.09B of ecosystem tokens that are not yet circulating and have never had published dates.
• The exact size of the final unlock is Ethena's to confirm. The tracked schedule says 1.41B; the announcement offers only an approximate chart with a note that numbers will be updated.
• The vote closes September 2, 2026. It stood at 17.6M ENA for, zero against, past quorum, with a day of voting left.
• The Master Framework Agreement is due in October 2026. Until it is published, the IP and economics transfer is an agreement in principle.
• Two disclosures would resolve the open questions: the size and price of the buyout, and a dated post-transaction supply table that reconciles the ~12% figure with the vesting schedule.

Methodology

Sources

• Ethena, protocol documentation and ENA tokenomics documentation
• Binance, ENA Launchpool announcement, 2024
• Ethena Foundation, Ethena Ecosystem Update, August 27, 2026
• Ethena Foundation announcement post on X, August 27, 2026
• ENA Fee Switch proposal on Snapshot, voting August 27 to September 2, 2026
• Ethena governance forum, ENA Fee Switch Activation, August 27, 2026
• Ethena, bought-out and declining wallet list (CSV), August 2026
• Tokenomist, ENA unlock schedule and allocations, as of September 1, 2026
• Tokenomist Research, Monad's investor tender and unlock schedule, marked at August 22, 2026 data
• CoinGecko, ENA price, market cap, FDV and trading volume, September 1, 2026
• DefiLlama, USDe circulating supply, September 1, 2026; USDe token contract total supply via Ethereum RPC, September 1, 2026
• Ethena, sUSDe and protocol yield API, as of August 26, 2026