Metropolis DLMM Vaults

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

Metropolis Maker Vaults accept paired assets into curator-managed Sonic DLMM positions. Bots, agents or human strategists rebalance discrete bins and charge 0.5%-10% annualized curator fees, while users retain vault withdrawal rights. The 2026-08-16 survey measured about $0.23M of the two underlying tokens held by live vault contracts. Curator discretion adds risk but never removes the trade-driven paired inventory or realized impermanent loss, so the version-1 AMM-LP dossier remains the exact class.

Kill criteria: the events that revoke this verdict
• Ships a product line without impermanent-loss exposure that merits its own review

The research file

Mechanism applicability

Metropolis identifies Maker Vaults as noncustodial market-making strategies built on its Joe V2.2-style Liquidity Book DLMM. Users deposit token pairs, receive vault exposure and delegate active bin placement and rebalancing to a bot, AI agent or human curator. Trading fees, emissions and airdrops accrue around that position, but the principal remains the two tokens supplied to changing market-making bins.

Control, loss and exit applicability

A curator selects and operates the strategy and sets an annualized fee between 0.5% and 10%, deducted incrementally on rebalance. Metropolis says curators can rebalance but cannot withdraw user funds and users may withdraw at any time. It also reports realized impermanent loss in vault performance and warns that narrow or one-bin strategies can suffer the greatest loss when price leaves the bin. Audit and selected-vault insurance claims do not guarantee pool tokens, coverage or recovery.

Current observation and perimeter

The DefiLlama API read on 2026-08-16 classified Metropolis DLMM Vaults as Liquidity Manager and reported approximately $0.23M entirely on Sonic. The adapter enumerates type-2 vaults from the Sonic factory and counts each vault’s current token X and token Y balances. This record covers Maker Vault inventory, not the separately measured Metropolis DEX pools, METRO staking or a curator’s own off-vault account.

Why the class rule decides

Vault automation changes who selects the bins, not what the client owns. Trading converts the paired assets across bins, and relative-price movement can leave the vault holding the weaker token; Metropolis itself reports impermanent loss against token and 50/50-hold benchmarks. The shared version-1 AMM-LP dossier is therefore more product-specific than the additional curator, Sonic-chain and size barriers. Reopen only for a separately measured product without market-making inventory.

Sources

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

• Metropolis Docs — protocol and Maker Vault perimeter · primary · accessed 2026-08-16
  Supports: Sonic, DLMM, Maker Vaults, separate DEX products
• Metropolis Docs — Maker Vault mechanism · primary · accessed 2026-08-16
  Supports: market-making, paired liquidity, curators, bots and agents, impermanent loss
• Metropolis Docs — user controls, fees and performance · primary · accessed 2026-08-16
  Supports: withdrawal right, curator rebalance, 0.5%-10% fee, realized impermanent loss, audit and insurance claims
• Metropolis Docs — curator authority · primary · accessed 2026-08-16
  Supports: strategy control, curator fee, on-chain vault, rebalance
• Metropolis Docs — DLMM strategy risks · primary · accessed 2026-08-16
  Supports: discrete bins, rebalancing, impermanent loss, token conversion
• DefiLlama adapter — Metropolis Maker Vault balances · secondary · accessed 2026-08-16
  Supports: Sonic factory, type-2 vaults, token X, token Y, live balances
• DefiLlama — Metropolis DLMM Vaults survey record · secondary · accessed 2026-08-16
  Supports: current TVL, Sonic-only perimeter, Liquidity Manager category

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.