Pendle Finance

Pendle tokenizes yield-bearing assets into Principal Tokens (PT) and Yield Tokens (YT), creating an on-chain market for fixed-rate yield and yield speculation/hedging. Pendle V2's specialized AMM and vote-escrowed vePENDLE coordinate liquidity across dozens of maturity-dated yield markets, and Boros extends the model to funding-rate trading.

The dominant yield-tokenization market: PT buyers lock a fixed rate, YT buyers go long yield — a true fixed-income primitive for DeFi, with the deepest liquidity and asset coverage in the category.

- Yield Tokenization (SY / PT / YT): A yield-bearing asset is wrapped into Standardized Yield (SY, ERC-5115) then split into a Principal Token (PT) and a Yield Token (YT) that trade and redeem independently until maturity. - Pendle AMM: A specialized AMM that trades PT and YT from a single pool, with time-decaying concentrated liquidity tuned to a market's maturity date. - vePENDLE: Vote-escrowed PENDLE (lock up to 2 years) — directs incentive emissions across pools, boosts LP rewards, and earns a share of protocol swap fees and YT yield. - Boros: Funding-rate yield trading with margin via Yield Units (YU); lets users hedge or speculate on perpetual funding rates. Launched Aug 2025 on Arbitrum.

- PENDLE (PENDLE) — Token, Governance & utility token - PT-stETH, PT-eETH, etc. (PT-stETH) — Receipt, Fixed-yield principal - YT-stETH, YT-eETH, etc. (YT-stETH) — Receipt, Tradable future yield

- Smart Contract: SY wrappers, PT/YT tokenization, redemption/maturity logic and the Pendle AMM are complex contracts; a bug could impair redemptions or LP funds. - Counterparty: Every market inherits its underlying yield source — a depeg, exploit or yield collapse of assets like Ethena sUSDe, Lido stETH or Ether.fi weETH directly hits PT/YT holders. - Oracle: PT/YT valuation and liquidations on integrating protocols rely on oracles/TWAPs; stale or manipulated pricing near maturity can misvalue positions. - Systemic: TVL is highly concentrated in Ethena USDe/sUSDe markets (~70%); an Ethena-specific shock would disproportionately impact Pendle. Markets are also time-bound — liquidity thins and YT decays toward maturity. - Governance: vePENDLE holders direct incentive emissions and key parameters; concentration of locked PENDLE could steer rewards or governance outcomes. - Regulatory: Fixed-yield and yield-trading products may face evolving regulatory treatment; Pendle is not a regulated financial product.

- Zero-coupon bond / Treasury STRIPS: similar — A PT bought at a discount and redeemed at par at maturity behaves like a zero-coupon bond — a known fixed return over a fixed term.; differs — Fully collateralized, permissionless on-chain markets with no issuer credit; the 'coupon' comes from a DeFi yield source carrying smart-contract and oracle risk rather than a sovereign/corporate issuer. - Interest-rate swap (IRS) / floating-rate trading: similar — YT and Boros let users take directional views on floating yield vs a fixed rate, similar to paying/receiving fixed on an interest-rate swap.; differs — Exchange-style, over-collateralized on-chain markets rather than bilateral OTC swaps with counterparty credit exposure.