Osmosis (OSMO): the Cosmos DEX after a refused merger and the end of inflation

The Osmosis crypto exchange stopped minting its OSMO token this week. Proposal 1053 closed on 25 October 2026 with 95.13 million OSMO in favour and almost nothing against and set new issuance to zero, five years after launch. On 3 March 2022 the exchange held $1.83 billion of deposits, according to DefiLlama. On the evening of 27 October 2026 it held about $11.2 million.

The decentralized exchange still runs 3,689 pools, an on-chain order book and its own blockchain in the Cosmos family, and it shipped upgrade v32 that afternoon. In 2026 it also offered itself to the Cosmos Hub and was turned down, absorbed a Bitcoin shortfall caused by a third-party bridge and cut its validator set from 100 to 30. Our report on the vote that ended OSMO inflation covers that proposal; this page covers how the exchange works and what can still break.

What Osmosis crypto is in October 2026: a small exchange with its own chain

It works as an automated market maker (AMM): traders swap against pools of tokens deposited by liquidity providers, and prices move with the balance of each pool. Its documentation calls it the main trading venue of Cosmos, the group of independent blockchains that exchange tokens and messages through a standard called IBC (Inter-Blockchain Communication).

Uniswap is a set of contracts deployed on Ethereum and other networks. Osmosis is a blockchain of its own. The chain, osmosis-1, runs on the Cosmos SDK and CometBFT consensus, and the pool maths and fee rules are part of the chain software. Changing them takes a vote of OSMO stakers and, for bigger changes, a coordinated upgrade of every validator node.

The business is now small. DefiLlama counted $1.26 million of trading volume in the 24 hours to 19:33 UTC on 27 October 2026 and $28.1 million over 30 days, 41.3% less than in the previous 30 days. Twelve-month volume was $1.42 billion, against $41.7 billion since launch. Protocol revenue came to $60,124 over 30 days, roughly $2,000 a day, and since issuance stopped it is the only money that rewards the people who secure the chain.

How the Osmosis DEX works: four pool types behind one router

Every swap passes through the pool manager, a module that routes an order across the pools able to fill it. Weighted pools hold assets in set proportions, the classic AMM design; stableswap pools suit assets that should trade near a fixed ratio, such as two dollar stablecoins. Concentrated liquidity pools let providers pick a price range, and CosmWasm pools are smart contracts plugged into the same router, the order book among them.

Anyone can open a pool for a 20 USDC fee, a spam deterrent according to the documentation. That is how the count reached 3,689 by 27 October 2026, many of them small or idle.

Concentrated liquidity and the order book

Concentrated liquidity, branded “supercharged liquidity”, arrived in July 2023, The Block reported on 12 July that year. A provider who picks a narrow range earns more fees per dollar while the price stays inside it and nothing once it leaves. As on Uniswap v3, that means more income in calm markets and more impermanent loss when prices run.

The order book, a CosmWasm contract for limit orders, sits in the same routing graph as the pools, so a swap can be filled by a resting order or a pool, whichever pays better. Its launch date is not documented.

IBC, alloyed assets and in-protocol arbitrage

Tokens come in over IBC from other Cosmos chains and through bridges from Bitcoin, Ethereum or Solana, leaving several versions of “the same” coin. Alloyed assets merge them. A contract called the transmuter holds the bridged versions as collateral and issues one token against them, such as allBTC or allUSDC, with a cap on each version’s share. Governance made Alloyed USDC the chain’s standard USDC through proposals 1039 and 1042, passed on 30 August and 15 September 2026.

ProtoRev is arbitrage built into the protocol. When a swap pushes a pool out of line, the chain trades it back in the same transaction; 5% of the profit goes to a developer account and the rest is burned if it is OSMO or sent to the community pool if it is another token. Superfluid staking, which let liquidity providers stake the OSMO in their pool shares, is still in the code, but no asset was eligible on 27 October 2026.

The osmosis.zone home page still advertises perpetuals from Levana with up to 30x leverage and margin trading from Mars. Yet governance passed proposal 1003, “Withdraw and Burn Levana Liquidity”, on 7 February 2026, and the April merger proposal cites a Mars plan to wind that protocol down; we could not confirm which partner products still work. Polaris, a cross-chain trading app announced in September 2024, is a separate product whose current state and financial link to Osmosis are not public.

Taker fees now pay the stakers, and most of each fee is burned

Traders pay two fees. The swap fee, set per pool, goes to liquidity providers. On top, the protocol charges a taker fee of 0.1% by default, with overrides by direction: 0.02% each way on BTC/USDC, 0.8% to sell OSMO for USDC and 0.05% to buy OSMO with USDC, according to the documentation. DefiLlama put total fees paid by traders at $213,635 over 30 days, of which the protocol kept $60,124.

Where the taker fee ends up depends on the token. Fees paid in OSMO go 30% to stakers and 70% to the burn. For other tokens, proposal 1052, passed on 14 October 2026, moved the community pool’s 25% share to stakers, who now get 47.5%, while 52.5% still buys back and burns OSMO. The documentation still showed the old split when we read it on 27 October.

For holders who stake, rewards no longer come from new tokens. They come from a share of about $2,000 a day of protocol revenue plus transaction fees, which DefiLlama put at $4,958 over 30 days. No official staking yield is published, and we do not estimate one.

OSMO tokenomics: a 1 billion cap, zero issuance and a burn on the table

The documentation is brief on the cap: “OSMO has a maximum supply of 1 billion.” The chain reported 793.68 million OSMO in total supply at 19:16 UTC on 27 October 2026, while CoinGecko showed 749.25 million in circulation the same day; sources count the community pool and developer vesting differently.

Year one minted 300 million OSMO, about 821,918 a day, and each reduction period, now 730 daily epochs, cut the rate by a third: the “thirdening”. The June 2023 cut was due on 20 June and took effect on 21 June, so one extra day minted 547,945 surplus OSMO; proposal 551, passed on 8 July 2023, burned that amount from the community pool to keep the cap at 1 billion. The next cut came in mid-June 2025, according to proposal 957.

The road to zero took sixteen months. A forum “Tokenomics Roadmap” of 30 June 2025 aimed for a flat or shrinking circulating supply; proposal 957 (15 July 2025) halved the staking subsidy, proposal 967 (19 August 2025) cut stakers’ share of new tokens from 25% to 8%, and release v31 automated the burn. Before proposal 1053 the chain still minted about 121,766 OSMO a day, two thirds of it to the community pool. Its mint start epoch is now 100,000,000, never to be reached. About 51.9 million OSMO stay in developer vesting, and releasing any needs a new vote.

Now only burns move total supply. The null address used as a burn sink held 44.52 million OSMO on 27 October 2026, and the community pool held 119.28 million. That day the forum author JohnnyWyles posted a draft to send 55.5 million community pool OSMO to the null address, which would take the burned total to about 100 million. “Any release of this community pool OSMO effectively inflates the circulating supply, so it must serve a worthwhile purpose,” he wrote. He valued the tokens at about $3.2 million and called the figure notional, since liquidity could not absorb them at the spot price. The draft targets an on-chain vote around 30 October 2026.

A chain secured by 30 validators

The chain runs on proof of stake. Holders bond OSMO to validators, who produce blocks and vote on proposals for delegators who do not vote themselves. Unbonding takes 14 days, the minimum validator commission is 5%, and double signing costs a validator and its delegators 5% of their stake.

The set has been cut three times: from 120 to 100 (proposal 976, September 2025), from 100 to 70 (proposal 1017, May 2026) and from 70 to 30 (proposal 1051, closed on 14 October 2026 with 75.60 million OSMO for and 8.59 million against). Proposal 1051 noted that Cosmostation, Informal Systems, Forbole, Nansen and Sentinel had stopped validating on Osmosis in 2026. Fewer validators get bigger slices of a shrinking fee pot, and fewer parties must agree before the chain moves.

On 27 October 2026, 160.28 million OSMO were bonded, about 20.2% of total supply. Our count from the chain’s validator list at 19:33 UTC puts the largest validator, running under the Keplr name, at 12.6% of bonded stake, the top three at 28.3% and the top five at 38.0%.

Osmosis history: from a 2021 fairdrop to a refused merger

2021 to 2024: launch, a Paradigm-led sale, a halted chain

The code repository dates from 17 October 2020. Mainnet went live in June 2021: Chorus One, a staking company, wrote on 23 June of “this weekend’s” launch, and the exact day is not settled. ATOM holders got OSMO through a “fairdrop”: 20% of each allocation came free, and the other 80% had to be earned within two weeks by swapping, adding liquidity, staking and voting, Chorus One wrote. DefiLlama’s deposit record starts on 23 June 2021 at $49.8 million.

On 27 October 2021 the Osmosis Foundation raised $21 million by selling OSMO from its treasury, in a sale led by Paradigm. Deposits peaked four months later.

On 8 June 2022 validators halted the chain at block 4,713,064 after a liquidity bug was drained of about $5 million, The Block reported. Adding liquidity and withdrawing it at once returned about 50% more than was put in, according to a user warning cited by The Block and Decrypt. The validator FireStake admitted two of its members had used the flaw, and Osmosis said two of the four people identified, behind over 95% of the amount, intended to return it, CryptoSlate reported on 9 June. We found no official post-mortem and no final recovery figure. Deposits kept sliding, to $191.5 million at the end of 2023 and $82.2 million a year later, per DefiLlama.

2026: COSMOSIS, a merger the Cosmos Hub refused

On 11 March 2026 Aggarwal posted a draft on the Cosmos Hub forum for the acquisition and merger of Osmosis into the Hub, nicknamed COSMOSIS. OSMO holders could convert at 0.0355 ATOM for 1.998 OSMO, a rate based on a 30-day average price. About 665.1 million OSMO would be eligible, for at most about 11.82 million ATOM, less than 2.5% of the ATOM supply, and both chains had to approve.

Osmosis did. Its proposal 1007 closed on 14 April 2026 with 91.40 million OSMO in favour and 34.70 million against. The text cited “ecosystem contraction” in Cosmos and also stated: “this transition is not required. Osmosis remains a viable standalone system with an active product and user base.”

The Hub said no. Its proposal 1029 closed on 16 April 2026 with 69.14 million ATOM against, 57.14 million in favour and 24.55 million abstaining. Osmosis then said it would carry on as “an independent, profitable blockchain”, crypto.news reported on 11 May. Talk of a revised version returned that month, but no new merger proposal had reached either chain by 27 October 2026.

Governance rules tightened after a weekend vote

In July 2026 an expedited proposal, 1024, passed over a weekend on a turnout of about 27% of staked OSMO. Three changes followed: proposal 1027 raised the quorum from 20% to 30%, proposal 1028 raised the pass mark for expedited votes from 67% to 80%, and proposal 1032 multiplied the deposit needed to file a proposal by five, to 30,000 OSMO. Standard votes now last five days and pass at 50%, with a 33.4% veto line.

Repairs fill much of the rest of the list. By our count, 16 proposals to recover expired IBC clients passed in 2026, each restoring a link to a partner chain that had slowed down or stopped.

The nBTC shortfall: 40 unbacked Bitcoin and how v32 repays it

The worst episode of 2026 began outside Osmosis. On 25 June the Nomic bridge, a separate project that carries Bitcoin into Cosmos, sent 25 identical IBC transfers in a single transaction. Proposal 1044 puts it plainly: “the Nomic bridge minted 40.650602 BTC of nBTC on Osmosis with no Bitcoin behind it”. Of that, 39.84 BTC ended up as collateral in the allBTC transmuter. Proposal 1031 had raised nBTC’s cap in the alloy from 35% to 60% on 1 August, five weeks after the mint and before anyone knew of it.

Nobody noticed for 74 days. Nomic’s halt on 7 September 2026 prompted a check of the backing, and validators froze 22.65 allBTC held by the attacker with emergency release v31.1.0 that day; proposal 1044 later put allBTC’s backing at 63.97%. About 18 BTC had already left Osmosis and passed through Tornado Cash, the proposal says; Protos reported on 11 September that the attacker sent 671 ETH, about $1 million, to the mixer. Osmosis told Protos the flaw sat in a custom forwarding mechanism on Nomic, not in Osmosis or IBC, and Protos described Nomic as apparently no longer maintained.

Proposal 1044 passed on 20 September with 95.33 million OSMO in favour and almost no opposition. It covers the 39.84 BTC hole with the attacker’s frozen 22.65 allBTC, the community pool’s 12.48 allBTC and about 4.7 BTC from an estimated 7.75 BTC freed by cancelling a planned USDC liquidity move. Upgrade v32, applied at block 73,304,000 around 15:00 UTC on 27 October 2026 under proposal 1054, moved the frozen allBTC to the Liquidity SubDAO and sent about $50,000 of tokens stuck in ProtoRev, mostly TIA, AKT and ETH, to be swapped for OSMO and burned. The proposal calls the 18 BTC that left the chain not directly recoverable.

For ten weeks allBTC holders carried a loss they could not see. Designs such as THORChain’s native cross-chain swaps avoid wrapped collateral for that reason, with risks of their own.

Osmosis in figures on 27 October 2026

Read from DefiLlama and the chain’s public endpoints between 19:16 and 19:33 UTC; trading figures change daily.

Metric	Value (27 October 2026)	Source
Deposits (TVL, AMM pools)	$11.24 million (DefiLlama point of 18:43 UTC)	DefiLlama
TVL peak	$1.83 billion, 3 March 2022	DefiLlama
Trading volume, 24 hours / 30 days	$1.26 million / $28.13 million	DefiLlama
Trading volume, 12 months / all time	$1.42 billion / $41.68 billion	DefiLlama
Fees paid by traders, 30 days / 12 months	$213,635 / $2.75 million	DefiLlama
Protocol revenue, 30 days / 12 months	$60,124 / $952,275	DefiLlama
Total OSMO supply	793.68 million	Osmosis chain
OSMO in the burn address	44.52 million	Osmosis chain
OSMO in the community pool	119.28 million	Osmosis chain
Bonded OSMO	160.28 million (about 20.2% of supply)	Osmosis chain
Active validators	30	Osmosis chain
Pools	3,689	Osmosis chain
Software version	v32.0.0 (live from block 73,304,000)	GitHub, Osmosis chain

Team: co-founders named, no published roster

We found no official team page. CoinDesk describes Sunny Aggarwal as a co-founder of Osmosis and of Polaris, and he signed the COSMOSIS draft in March 2026. CoinMarketCap’s project profile names Aggarwal, Dev Ojha and Josh Lee as the founders, all three formerly at Tendermint. We found no news report that sets out Lee’s or Ojha’s current role.

Tokenomics work is visible on the forum, where the user JohnnyWyles wrote the 2025 roadmap, the posts behind proposals 1052 and 1053 and the new burn draft. The forum does not state his real name or formal role, and who runs Osmosis Labs and the Osmosis Foundation in 2026 is not public.

Funding: one $21 million token sale, led by Paradigm

The only funding on record is that sale of 27 October 2021: $21 million of OSMO sold from the Osmosis Foundation treasury, not an equity round. Paradigm led it, with Robert Leshner’s scout fund, Robot Ventures, Nascent, Ethereal, Figment and Do Kwon, then chief executive of Terraform Labs, among the buyers, The Defiant reported. DefiLlama records the same date and amount.

Audits cover contracts, not the whole chain

Oak Security has published four reports on Osmosis Labs code in its public repository: CosmWasm WBTC (18 August 2023), Transmuter v1.0 (9 October 2023), Transmuter v3 (15 May 2024) and Smart Accounts (3 July 2024). They cover the contract behind alloyed assets and the smart-account module. We have not reviewed their findings.

We found no published report on the core chain or the concentrated liquidity module. A GitHub issue for that module, closed on 8 August 2023, points to OtterSec and Informal review labels but links no report, and DefiLlama lists no audit for the protocol. The project’s security policy takes reports by e-mail or GitHub advisory; it has no official bug bounty programme but says it generally pays for high and critical findings. Accepting nBTC as allBTC collateral was a governance choice, not an audit finding.

Risks: why we rate Osmosis 4 out of 5

The chain still settles trades every block and votes on proposals every week. We score it 4 on our 1 to 5 risk scale anyway. Its security budget is about $2,000 a day of fees, with 30-day volume down 41%; if trading keeps falling, so does the reason to run one of the 30 nodes.

Bridges are the second weak point. Besides the nBTC shortfall, the 16 IBC recoveries of 2026 show how often links to partner chains break. Control is also narrow: the big 2026 votes drew 95 to 97 million OSMO out of about 160 million bonded, and the top five validators hold 38% of stake.

What keeps it off a 5 is the record of the past year: issuance ended, the code is open under Apache 2.0, and the nBTC recovery passed almost unanimously and is being carried out.

What to watch: 28 October and 30 October 2026

• Proposal 1055, which would rebalance community pool reserves into BTC, ETH and USDC, closes on 28 October 2026 at 10:20 UTC.
• The draft to burn 55.5 million community pool OSMO targets an on-chain vote around 30 October 2026.
• A forum post of 27 October 2026 proposes version 3 of the IBC rate-limiting contract, and the burn draft promises other parameter changes “to help make validation more sustainable”.
• Fee tiering by OSMO stake and trading volume, planned for the fourth quarter of 2025 in the tokenomics roadmap, had not been delivered at its last update in September 2025.

No roadmap beyond these items has been published, and nothing dated 2027 has been announced.