Cetus CLMM

Rejected venues wait the longest for re-review; a rejection has to earn another look before the scheduled date.

Cetus is a concentrated-liquidity DEX serving the Move-based chains Sui and Aptos. Its depositors are liquidity providers, and concentrated liquidity sharpens the impermanent-loss mechanism rather than removing it: an LP’s range sells the rising asset for the falling one, and once price leaves the range the position sits entirely in the weaker asset. That loss cannot be explained to this client in two sentences and is indefensible when it bites, so the AMM category is rejected regardless of protocol quality. The DefiLlama protocol API read on 2026-08-15 reported about $29.4M of DEX TVL across Sui and Aptos, excluding a separately labelled staking balance; size does not change the mechanism rule.

Kill criteria: the events that revoke this verdict
• Ships an economically separate product without pooled multi-asset inventory or relative-price rebalancing that merits its own review

The research file

Mechanism applicability

Cetus documentation identifies a concentrated-liquidity market maker in which an LP selects a pair and price range, receives a position NFT and earns swap fees only while the market price is in range. Cetus defines a range order as single-sided assets continuously swapped into the other asset as spot price crosses the position. It also warns that narrow ranges carry higher impermanent-loss exposure. That directly establishes AMM-LP membership.

Current observation and control applicability

The DefiLlama API read on 2026-08-15 reported approximately $29.4M of Cetus DEX liquidity, chiefly on Sui with a small Aptos balance, plus a separately labelled $4.7M staking balance outside this LP perimeter. Cetus describes the Sui CLMM as autonomous contracts operated through user calls, while pool creators select pairs, initial price, range and fee tier. Current pool composition, contract versions, upgrade controls and incentives remain deferred because the AMM mechanism already decides.

Exit and incident applicability

Closing a Cetus position realizes its current two-token inventory; a range crossed completely can leave the LP effectively in one asset, and an out-of-range position stops earning fees. Cetus disclosed a May 22, 2025 CLMM exploit caused by an overflow-check flaw, globally disabled relevant contracts, patched the vulnerable contract and pursued recovery. The incident materially reinforces contract and control diligence but is not needed to make the shared AMM-LP decision.

Why the class rule decides

The shared v1 AMM-LP dossier controls because Cetus fees must overcome divergence loss created by pooled inventory and price-range execution. Reopen only if Cetus ships an economically separate product without pooled multi-asset inventory or relative-price rebalancing. That product would require its own review of chains, contracts and upgrades, audits and post-incident remediation, assets, controls, fees, liquidity and stressed exits; higher TVL or a new range shape alone would not change this verdict.

Sources

The claims above trace to these. Where a number could not be independently verified, the thesis says so.

• Cetus Docs — CLMM overview · primary · accessed 2026-08-15
  Supports: concentrated liquidity, price ranges, position curves, Sui CLMM, swap execution
• Cetus Docs — glossary and LP risks · primary · accessed 2026-08-15
  Supports: position NFT, range order, continuous swap, impermanent loss, APR limitation, volatility risk
• Cetus — May 2025 CLMM incident report · primary · accessed 2026-08-15
  Supports: CLMM exploit, overflow flaw, contract pause, patch, fund recovery
• DefiLlama — Cetus CLMM survey record · secondary · accessed 2026-08-15
  Supports: current TVL, Sui, Aptos, DEX category, staking perimeter

Inherited controls

The verdict above grades the protocol layer. Every position also inherits the asset it holds and the chain it settles on. The least safe layer sets the position’s grade, and the position table names which one that is.