Osmosis (OSMO)

Osmosis (OSMO) is the native token of Osmosis, a decentralized exchange that runs as its own blockchain in the Cosmos ecosystem. OSMO pays for transactions, is staked to secure the network, rewards people who supply liquidity and gives holders votes on how the exchange is run. Osmosis became the main marketplace for tokens issued on Cosmos-based chains, which move in and out of it through the Inter-Blockchain Communication protocol (IBC).

Osmosis is an appchain: a blockchain built for one application rather than a smart-contract platform hosting many. It is separate from Cosmos (ATOM), the token of the Cosmos Hub, although the two communities overlap heavily and in 2026 voted on a plan to merge them. Osmosis was co-founded by Sunny Aggarwal and Josh Lee.

Picture a busy port where ships from many independent island nations come to trade. Each island has its own currency and its own rules, but they all use a common shipping standard, so cargo can move between them. Osmosis is the marketplace at that port: traders arrive with one island's coins and leave with another's, and the merchants who keep stock in the market's stalls earn a fee on every swap.

OSMO is the port's own currency. Holders can lend it to the port's security guards, the validators, and earn a share of new coins, or keep it in the stalls as stock. They also vote on harbour rules, such as which fees are charged and how the port's savings are spent. Because the port is its own island too, its owners control every part of how it runs.

Osmosis launched in June 2021, shortly after IBC was switched on across the Cosmos ecosystem, and distributed part of its first supply as an airdrop to ATOM holders. It grew quickly as new Cosmos chains used it to list their tokens. In 2022 it introduced superfluid staking, which lets the OSMO inside certain liquidity positions also be staked, so the same tokens earn trading fees and help secure the chain. In June 2022 a bug in its pool code let users withdraw more than they had deposited, draining about $5 million before validators halted the chain to fix it. Concentrated-liquidity pools followed in 2023.

In March 2026 Aggarwal published a proposal, nicknamed COSMOSIS, to fold the Osmosis exchange into the Cosmos Hub and let OSMO holders convert into ATOM. Osmosis governance approved it, but the matching Cosmos Hub vote narrowly failed in April 2026, and Osmosis said it would continue as an independent chain.

Osmosis is built with the Cosmos SDK and secured by proof of stake: OSMO holders delegate tokens to validators and earn a share of rewards; see staking. Trading takes place in liquidity pools priced by an automated market maker, including weighted pools, stablecoin pools and concentrated-liquidity pools. Tokens from other chains, such as USDC issued natively on the Noble chain, arrive through IBC, a standard that lets Cosmos chains pass messages and tokens without a separate crypto bridge operator. Swap fees go to liquidity providers, and a protocol fee on trades has funded stakers and the community treasury.

OSMO was designed with a maximum supply of 1 billion tokens. New tokens are released each day and split between stakers, liquidity incentives, developers and the community pool. The yearly amount was set to fall by a third at regular intervals, an event the community calls the "thirdening":

• $E_{n}$ is the number of OSMO released in emission period $n$.
• $E_{0}$ is the release in the first period.
• $n$ is the number of thirdenings since launch.

Under the original schedule, the first year released 300 million OSMO. After two thirdenings the yearly release is $300 \times \left(\frac{2}{3}\right)^{2} \approx 133$ million. Summed over all periods, the series adds up to 900 million, which together with the genesis supply reaches the 1 billion cap. Governance has since voted to reduce emissions further, so actual issuance is lower than this original path; see inflation.

• Trading. OSMO is paired with many Cosmos tokens and serves as a routing asset between them.
• Staking. Staked and superfluid-staked OSMO secures the chain.
• Liquidity incentives. Emissions reward providers in pools chosen by governance.
• Voting. OSMO holders vote on upgrades, fees and spending through on-chain governance.

Osmosis depends on the health of the wider Cosmos ecosystem, whose token prices and activity fell sharply after 2022, reducing the exchange's volume and the value of its rewards. Running its own chain gives Osmosis control but also means it must attract enough stake to stay secure; Cosmos Hub validators hold a large share of its voting power. The 2022 exploit showed the risk of custom pool code, and the failed 2026 merger left open questions about the exchange's long-term funding and direction. As with other DeFi venues, liquidity providers face impermanent loss.

• Osmosis
• Osmosis documentation