What Is Pendle Finance? How PT, YT and Yield Trading Work

Who operates Pendle

Pendle's Terms of Use (last revised October 1, 2026) name Univerum Innovations Inc, established in Panama, as the party users contract with. The Terms are governed by Singapore law, with disputes resolved by arbitration under Singapore International Arbitration Centre rules, and state that the Pendle group is not registered with the US Securities and Exchange Commission.

The protocol launched its V1 mainnet in June 2021 and V2 in the fourth quarter of 2022, according to a 2023 project report by Binance Research, which lists TN Lee as CEO and Vu Nguyen as CTO and records a $3.7 million seed round in April 2021 (Binance Research). The smart contracts are permissionless: anyone can create a market on-chain, while the markets shown in the official app are curated through a review process (Pendle V2 introduction).

How yield tokenization works

Pendle's mechanism has three building blocks, and the rest of the product follows from them.

1. SY (Standardized Yield). A yield-bearing token such as stETH is wrapped into SY-stETH so every asset behaves the same way inside Pendle.
2. PT (Principal Token). The principal part of the SY. Pendle's documentation describes it as essentially a zero-coupon bond: at maturity, each PT redeems 1:1 for its *accounting asset* — the asset named in brackets, such as PT-ezETH (ETH).
3. YT (Yield Token). The yield part. Holding YT streams all yield and points from one unit of the underlying until maturity, after which YT is worth zero.

PT and YT can also be minted directly from SY (Pendle's docs cover this under Minting), but most users simply buy one side on Pendle's automated market maker.

PT and YT explained with an example

*Hypothetical numbers for illustration only — not current market prices.* Suppose a PT that will redeem for 1 ETH worth of a staking token in 180 days trades at 0.97 ETH. Buying it locks in roughly a 3.1% gain over those 180 days (about 6.3% annualized, simple), regardless of what staking rates do in the meantime, provided you hold to maturity and the underlying asset does not fail.

The YT for the same market costs only a fraction of the underlying, so it gives leveraged exposure: you receive the yield of a full unit of the asset while paying much less. If the realized yield plus points over the remaining period exceeds what you paid, you profit; if yields fall, you lose, and the token reaches zero at maturity either way.

Two details often surprise new users:

• PT redeems in the accounting asset, not the underlying. One PT-ezETH (ETH) returns 1 ETH worth of ezETH, not 1 ezETH. Gains in the underlying token's own exchange rate beyond that are not captured (PT docs).
• PT prices move before maturity. The fixed return is only fixed if you hold until maturity. Selling early means selling at whatever the AMM price is.

Liquidity provision

Pendle pools pair PT with SY. Liquidity providers earn a share of swap fees plus the return on the assets held in the pool, and some pools carry PENDLE incentives. Because PT converges toward its redemption value as maturity approaches, Pendle pools behave differently from ordinary pools; OBOL's guide to AMMs covers the general mechanics.

Fees and where they go

As of October 2026, Pendle's fee documentation sets out these charges:

Liquidity providers receive 20% of swap fees. The remaining swap fees plus all YT fees are split 80% to PENDLE buybacks, 10% to the treasury and 10% to protocol operations. Yield and points on positions left unredeemed after maturity are redirected to the treasury — a practical reason to redeem promptly.

Boros: trading funding rates

Boros is Pendle's margin platform for trading floating rates, such as perpetual futures funding rates, against a fixed rate until maturity. Unlike PT and YT, Boros positions use leverage and can be liquidated if your balance falls below the maintenance margin. Positions are collateralized in each market's collateral asset — for example, BTC in a BTC funding-rate market (Boros introduction).

Boros fees differ from Pendle V2: takers pay position size × fee rate × time to maturity, maker orders resting on the book pay nothing, open positions pay a small annualized settlement fee at each settlement, and the first interaction with a market costs roughly $1 (Boros fees). Pendle's Terms prohibit users located in the United States from accessing Boros.

The PENDLE token and sPENDLE

PENDLE is the protocol's token (Ethereum address `0x808507121b80c02388fad14726482e061b8da827`). On January 20, 2026, Pendle replaced its vote-escrow model, vePENDLE, with sPENDLE, a liquid and transferable staking token minted 1:1 for PENDLE (Pendle announcement; sPENDLE contract docs). Key rules as of October 2026:

• Unstaking: a 14-day cooldown with no fee, or instant unstaking for a 5% fee.
• Rewards: up to 80% of protocol revenue funds PENDLE buybacks distributed to *active* sPENDLE holders. Missing a vote on an active governance proposal pauses rewards for 14 days; sPENDLE deployed in approved DeFi integrations counts as active.
• Legacy vePENDLE: balances at the January 29, 2026 snapshot converted into non-transferable boosted sPENDLE (up to 4×), decaying to 1× and expiring after two years.
• Emissions: Pendle said the new algorithmic model would cut emissions by about 30%.

PENDLE is a protocol token, not equity in Univerum Innovations Inc, and buyback-funded rewards depend on protocol revenue, which varies with market activity.

Security record and risks

Pendle's documentation links to audit reports in its GitHub repository. Several incidents are relevant context:

• September 3, 2024 — Penpie exploit (third party). Penpie, an independent yield optimizer built on Pendle, lost about $27 million to an attacker who exploited its permissionless listing of Pendle markets. Pendle paused its own contracts and said the pause protected about $105 million that could otherwise have been drained; normal operations later resumed (The Block).
• September 30, 2025 — drained wallet minting PT/YT. Reports of a wallet draining and an actor minting and selling PT and YT prompted Pendle to state publicly that the protocol had not been hacked and all funds remained safe (The Block).

Structural risks to weigh:

• Underlying asset risk. A PT is only as good as the asset it redeems into. If a restaking token or synthetic dollar depegs or is exploited, PT and YT holders absorb that loss.
• Smart-contract and integration risk across Pendle, SY wrappers, oracles and any protocol that accepts PT as collateral.
• Liquidity risk before maturity. Exiting early depends on AMM depth and can mean selling at a discount.
• YT decay. YT trends toward zero by design; points programs can change terms or end.
• Leverage on Boros. Rate moves can trigger liquidation.

For OBOL's evaluations, see OBOL's Pendle yield aggregator review and OBOL's Pendle protocol review; the yield aggregators hub lists alternatives.

Getting help

Pendle provides documentation at docs.pendle.finance and community support through its official Discord, linked from the website. There is no phone or email support line listed on the official site. Moderators and team members will not ask you to connect a wallet to a "support" site or share a seed phrase.

Official channels

Fake Pendle front ends are a known phishing pattern; reach the app only through these:

• Website and app: https://www.pendle.finance/
• Documentation: https://docs.pendle.finance/
• X: https://x.com/pendle_fi
• Discord: https://pendle.finance/discord
• GitHub: https://github.com/pendle-finance
• Medium: https://medium.com/pendle