Pools and APY

Non-custodial. No impermanent loss. Isolated. Organic rates. No liquidations.

Stackfi passive lending is similar to Compound or Aave, but with composable leverage benefits and isolated risks.

How it Works:

  • Lend a single asset to a pool (e.g., USDC, WETH, WBTC)

  • Earn APY from borrowers using leverage via Credit Accounts

  • No impermanent loss, no liquidations for lenders

  • Multiple pools per asset, each with different AllowedLists

sTack Tokens (sTokens):

  • ERC-4626 yield-bearing pool tokens (e.g., sUSDC, sWETH)

  • Automatically accrue interest

  • Rewards (e.g., Stack tokens) accrue to staked sTokens

  • Claim extra token rewards manually

Where Does Yield Come From?

  1. Utilization Curve:

  • Two-tick model smooths rates to prevent volatility.

  • APY increases with utilization ratio.

  • r(t) based on U1, U2 thresholds (see table in docs)

Example USDC Pool Rates:

  • r0 = 0%, r1 = 1%, r2 = 1.25%, r3 = 100%

  • U1 = 70%, U2 = 90%

  1. Gauges (Extra Interest):

  • Distributed between pools & DAO

  • Dynamic source of income

  1. STACK Token Rewards:

  • Distributed to staked sTokens

  • Must be manually claimed

Lending on StackFI is simple, passive, and powerful. Try supplying liquidity and earn real yield.

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