How Does Mellow Core Work?
Mellow Core is a modular liquid restaking protocol built on top of Symbiotic. It lets curators create custom restaking vaults where users deposit LSTs like wstETH to earn restaking rewards by securing Symbiotic Shared Security Networks (SSNs). Unlike single-strategy restaking protocols, Mellow offers permissionless vault creation with diverse risk profiles. The platform has attracted $124 million in deposits, primarily driven by Mellow and Symbiotic points incentives.
TVL
$311M
Sector
Yield
Risk Grade
C+
Value Grade
D-
Core Mechanisms
Restaking/LRT-Vault
NovelPermissionless liquid restaking token vaults with curator-defined strategies
Unlike one-size-fits-all LRT protocols, Mellow allows anyone to create vaults with custom risk/reward profiles for restaking. Curators define which Symbiotic SSNs to secure and how to allocate deposits.
Restaking/Symbiotic-Integration
NovelNative integration with Symbiotic restaking protocol for SSN security
Mellow serves as the primary LRT layer for Symbiotic. Vaults actively secure Symbiotic Shared Security Networks (SSNs), earning restaking rewards plus potential slashing exposure.
Vault/MultiVault
NovelMultiVaults with multiple subvaults for diversified risk management
MultiVault architecture hosts multiple subvaults within a single vault, enabling diversified exposure and rebalancing between different risk-reward profiles. Novel composable vault design.
Staking/LST-Collateral
Accepts wstETH and other LSTs as vault deposits
Standard LST acceptance pattern. Primary integration with Lido's wstETH creates deep Lido ecosystem dependency.
Governance/Curator
Vault curators manage strategy and risk parameters
Curators are trusted operators who manage vault allocations. Standard delegation pattern but applied to restaking strategies.
Incentives/Points
Mellow points + Symbiotic points dual rewards system
Standard points-based incentive mechanism. Users earn both Mellow and Symbiotic points proportional to deposit size and duration.
Risk-Management/Slashing
Slashing exposure from Symbiotic SSN misbehavior passed through to vault depositors
Standard restaking slashing pass-through. Vault depositors bear slashing risk from the SSNs their vault secures.
How the Pieces Interact
Malicious or incompetent curators can create vaults that allocate deposits to high-risk SSNs. Users may not understand the specific slashing risks of each SSN, trusting the Mellow brand instead of evaluating curator quality.
Each restaking layer adds slashing surface. A Symbiotic SSN slashing event simultaneously impairs the Mellow vault and the underlying Lido staking position, creating correlated losses across the stack.
TVL attracted by points incentives is mercenary capital. When points programs end or token launches disappoint, mass withdrawals could destabilize vault strategies and create redemption queues.
Heavy reliance on wstETH as primary vault collateral creates concentration risk. A Lido-specific event (regulatory, technical) would impact all Mellow vaults simultaneously.
Rebalancing between subvaults during high-stress periods may face liquidity constraints if underlying SSN positions cannot be quickly unwound.
What Could Go Wrong
- Permissionless vault creation means anyone can deploy a Mellow vault with arbitrary risk parameters. Users must evaluate each vault curator's strategy independently — the Mellow brand does not guarantee safety.
- Multi-layered restaking creates compounded slashing exposure: ETH staked via Lido, restaked via Symbiotic, and deposited into Mellow vaults faces slashing risk at each layer simultaneously.
- Young protocol (launched June 2024) with rapid TVL growth driven by points incentives. Once points programs end, TVL retention is uncertain and rapid outflows could destabilize vault strategies.
Cascading Slashing Across Restaking Stack
ModerateTrigger: A Symbiotic SSN secured by multiple Mellow vaults commits a slashable offense, triggering simultaneous slashing across all depositors in affected vaults
- 1.A Symbiotic SSN experiences a slashing event due to operator misbehavior or technical failure — All Mellow vaults securing that SSN have their restaked collateral slashed simultaneously
- 2.Vault depositors discover their wstETH holdings have been reduced by slashing penalties — Panic withdrawals from affected and unaffected Mellow vaults as trust in the restaking stack erodes
- 3.Mass withdrawal pressure exceeds vault liquidity as restaked positions cannot be instantly unwound — Redemption queues form; LRT tokens trade at discount to underlying wstETH value
- 4.Discount triggers DeFi liquidations where Mellow LRTs are used as collateral — Cascading devaluation across DeFi protocols holding Mellow vault tokens
Risk Profile at a Glance
Overall: C+ (38/100)
Lower score = safer