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Arbitrage vault

stLINK premium arbitrage vault

Captures the structural stLINK premium on Curve. Every cycle pushes the pool toward 50/50 balance: protocol-aligned arbitrage that earns yield while improving liquidity for all stLINK holders.

Current premium

Market opportunity

Priority pool
Curve pool TVL

How it works

  1. Sell stLINK on Curve

    When the pool is LINK-heavy, stLINK trades above 1:1. The vault sells stLINK for more LINK than it's worth.

  2. Deposit LINK to Priority Pool

    LINK received from the swap is deposited back into stake.link's Priority Pool, joining the staking queue.

  3. Wait for 15K batch

    The Priority Pool accumulates LINK deposits until a 15K batch is reached, then converts to stLINK via Chainlink staking.

  4. Claim stLINK & repeat

    Vault claims its stLINK allocation from the merkle distribution. The premium earned is pure profit. Cycle repeats.

Protocol-aligned
Every arb cycle pushes the Curve pool toward 50/50 balance, improving liquidity depth and reducing slippage for all stLINK holders.

Two-sided vault

Priority side

Deposit reSDL NFTs to give the vault queue priority in the Priority Pool. The more reSDL boost weight, the faster the vault’s LINK converts to stLINK.

Deposit
reSDL NFTs
Earn
Share of arb profit (LINK)
Weight
Proportional to boost
Withdraw
Anytime (even paused)

Capital side

Deposit LINK to provide swap capital. Access modes are togglable: DAO-only, reSDL-gated, or open to anyone.

Deposit
LINK tokens
Earn
Share of arb profit (LINK)
Shares
Proportional to capital
Withdraw
Capital + earned profit

Vault parameters

Profit distribution

DAO treasury
10%
Builder
0.1%
Capital providers
44.95%
Priority providers
44.95%

When DAO is sole capital source, capital share redirects to priority side (89.9% to reSDL depositors)

Execution config

Trigger
Any net-positive premium
Automation
Chainlink Automation
Monitoring
CRE Workflow
Admin
3/6 Safe + Timelock
Emergency
Pausable

Development status

  • Core VaultComplete
  • CRE MonitorComplete
  • AutomationComplete
  • Claim KeeperComplete
  • FrontendComplete
  • HardeningComplete

125 tests passing: accounting, fork integration, strategy, hardening, timelock. Audit pending before mainnet deployment.

Security

  • 3/6 Gnosis SafeMulti-sig ownership via Ownable2Step transfer
  • TimelockController24h delay on all admin parameter changes
  • ReentrancyGuardAll state-changing functions protected
  • PausableEmergency circuit breaker, NFT withdrawal always works
  • MEV protectionTight minAmountOut from get_dy() reverts if sandwiched
  • forceApproveSafeERC20 for all token approvals
  • Safety boundsHardcoded contract limits prevent admin abuse
  • Rescue limitsCannot rescue LINK, stLINK, or reSDL
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