Arcadia V2

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

Arcadia V2 cannot be classified honestly from its aggregate survey slug. The 2026-08-16 DefiLlama record reported about $5.40M across Base, Optimism and Unichain, but its adapter adds both unused single-asset lending-pool balances and collateral held in user-controlled DeFi Accounts, including spot tokens and leveraged AMM positions. Lenders explicitly do not bear direct impermanent loss, while margin-account users can borrow against complex collateral and face liquidation. Because the measured denominator mixes materially different investable claims, Arcadia remains an individual rejected version-1 memo at max zero until a named lender pool or account strategy is selected and measured separately.

Kill criteria: the events that revoke this verdict
• Names the exact lender pool or Account strategy, chain, contracts, assets, authorities, leverage and proposed allocation
• Separates that product’s TVL and available exit liquidity from aggregate lender-pool and Account collateral
• Maps current audits and incidents and demonstrates a proposed-size exit under utilization, bad-debt, oracle and liquidation stress

The research file

Mechanism and product-scope contradiction

Arcadia supports user-owned Spot and Margin Accounts that can hold simple tokens and integrated AMM positions; Margin Accounts can borrow from Arcadia lending pools. Separately, lenders deposit a single asset into a lending pool and earn utilization interest plus a portion of liquidation penalties. Arcadia states lenders do not directly manage AMM positions and do not bear direct impermanent loss, but can suffer pro-rata bad debt. Those are distinct claims and cannot share one mechanism classification.

Current observation and adapter perimeter

The DefiLlama API read on 2026-08-16 classified Arcadia V2 as a Liquidity Manager and reported approximately $4.97M on Base, $0.43M on Optimism and less than $0.0001M on Unichain. The adapter sums available WETH, USDC and cbBTC lending-pool balances plus assets in all Arcadia Accounts, unwrapping Uniswap, Aerodrome, Slipstream and related LP positions. Its own methodology says Account values and available pool balances are added without double counting, confirming the mixed denominator.

Control, loss and lifecycle

Arcadia publishes common core-contract addresses across Base, Optimism and Unichain and a multi-auditor V2 report set. Risk managers choose accepted collateral, factors and exposure caps. Margin Accounts below a health factor of one enter partial Dutch-auction liquidation; lenders depend on those auctions and lose pro rata if a default event leaves bad debt. Spot Accounts are not debt-enabled. These controls reinforce, rather than resolve, the need to select the exact client claim.

Incident record and evidence limits

The reviewed primary audit index maps repeated V2 reviews, asset-module reviews and a 2025 multichain review, but an audit history is not an incident history and does not establish that every currently counted Account integration has had no loss. The reviewed materials did not supply a complete current exploit, bad-debt and remediation ledger tied separately to each lending pool and Account version. Until that ledger and live authority state are mapped to a selected product, neither the absence of a cited incident nor aggregate audit coverage can support client allocation.

Decision and measurable reopening tests

A lender-pool deposit should be compared with named direct lending reserves on utilization, collateral, bad debt, authorities and withdrawal liquidity. A Margin Account strategy must instead disclose its exact assets, LP exposure, leverage, manager permissions, liquidation buffer and exit path and be compared with unleveraged holdings. Reopen only when the proposed product and chain are named, its TVL and available liquidity are separated from the aggregate adapter, all authorities and audits are mapped, and a proposed-size stress exit is demonstrated.

Sources

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

• Arcadia — protocol and account overview · primary · accessed 2026-08-16
  Supports: DeFi Accounts, Spot Account, Margin Account, lending pools, AMM positions, asset managers
• Arcadia — lender claim and bad-debt risk · primary · accessed 2026-08-16
  Supports: single-asset deposit, utilization interest, liquidation penalty, no direct impermanent loss, pro-rata bad debt
• Arcadia — liquidation mechanism · primary · accessed 2026-08-16
  Supports: Margin Account, health factor, partial liquidation, Dutch auction, Spot Account exemption
• Arcadia — core contracts and chain perimeter · primary · accessed 2026-08-16
  Supports: Base, Optimism, Unichain, Factory, Registry, oracle modules, position managers
• Arcadia — V2 audit history · primary · accessed 2026-08-16
  Supports: V2 audits, Sherlock, multichain deployment, asset modules, audit scope
• DefiLlama — Arcadia V2 survey record · secondary · accessed 2026-08-16
  Supports: current TVL, Base, Optimism, Unichain, Liquidity Manager category
• DefiLlama adapter — Arcadia mixed TVL perimeter · secondary · accessed 2026-08-16
  Supports: lending-pool balances, Account assets, LP unwrapping, mixed denominator, no double counting

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.