[Direct to AIP] Onboard USDe November expiry PT tokens on Aave V3 Core Instance

[Direct to AIP] Onboard USDe November expiry PT tokens on Aave V3 Core Instance

Author: ACI

Date: 2025-08-25

Proposal updated with latest Risk Parameters by Risk Service Providers 2025-08-28

Summary

This ARFC proposes to onboard USDe November expiry PT tokens on Aave V3 Core Instance.

This proposal will be a Direct to AIP.

Motivation

We propose onboarding the 27th November 2025 expiry USDe PT token after successful July and September onboardings. The addition of the November expiry of the same will maintain this TVL and associated revenue by making it easy for users to migrate to the updated expiry and keep Aave as the leading venue for PT collateral. We expect the majority, if not all of the September expiry USDe PT deposits to migrate to the November expiry once onboarded.

Specification

Token contract: PT-USDE-27NOVEMBER 2025

Risk Parameters

Risk Parameters will be provided by Risk Service Providers and Direct to AIP will be updated accordingly.

Proposal updated with latest Risk Parameters by Risk Service Providers 2025-08-28




Useful Links

https://docs.pendle.finance/ProtocolMechanics/YieldTokenization/PT

[TEMP CHECK] Onboard Pendle PT tokens to Aave V3 Core Instance

[ARFC] Onboard Pendle PT tokens to Aave V3 Core Instance

Disclaimer

ACI is not directly affiliated with Pendle or Ethena and did not receive compensation for creating this proposal. Some ACI employees may hold Pendle or Ethena tokens.

Next Steps

  1. Current step - Publish ARFC to gather community and Service Providers feedback.
  2. Publish an AIP vote for final confirmation and enforcement of the proposal.

Copyright

Copyright and related rights waived under CCO.

I am for this. Same contract structure with September expiry PT?

Overview

In alignment with our Principal Token Risk Oracle framework, outlined in detail here, we present our risk parameter recommendations for the proposed maturity and underlying asset listing: PT-USDe-27NOV2025. Leveraging the dynamic linear discount rate oracle implementation, we also provide our recommended values for initialDiscountRatePerYear and maxDiscountRatePerYear, derived from the extended methodology detailed here.

In addition, our recent research paper, “Stress Testing Ethena: A Quantitative Look at Protocol Stability,” examines how rapidly growing deposits of Ethena’s USDe, sUSDe and especially Pendle Principal Tokens are reshaping Aave’s collateral pool and funding dynamics. It maps out both on‑chain liquidity hazards (e.g., thin PT markets, leveraged looping, rehypothecation) and backing‑side tail risks (exchange or custodian failure, collateral de‑peg, prolonged negative funding) via scenario modeling and Monte‑Carlo simulations, while proving that Aave’s current risk‑oracle floors, eMode parameterization and liquidation controls would absorb most plausible shocks. This asset listing reflects and incorporates the insights from this paper.

Finally, our most recent paper, “Aave’s Growing Exposure to Ethena: Risk Implications Throughout the Growth and Contraction Cycles of USDe ,” shows that contraction and stabilization dynamics within the Aave-Ethena ecosystem are closely linked. When sUSDe yields decline, leveraged positions unwind, freeing up significant stablecoin liquidity in Aave through repayments. Simultaneously, PT/USDe borrowers shift their debt into other stablecoins, generating upward price pressure on USDe precisely when redemption demand rises. Crucially, stablecoin repayments from leverage unwinders typically outweigh PT debt migration into stablecoins, creating a natural liquidity buffer. Our analysis indicates this dynamic effectively stabilizes Aave markets, comfortably absorbing potential stress even during Ethena’s withdrawal of backing assets. Overall, the current market structure supports increased exposure, provided backing deployment into Aave remains prudently managed. This asset listing reflects and incorporates the insights from the aforementioned papers.

Risk Oracle Parameter Evolution

Stablecoin E-mode

Through our rigorous quantification of the algorithm, we find that the integration risk decays as the PT approaches maturity. This justifies the use of progressively less conservative risk parameters over time. Taking into account the underlying configuration of USDe E-mode within Aave, we outline the projected evolution of the LT, LTV and LB, with the initial parameterization approximately as follows:

LTV: 87.8%

LT: 89.8%

LB: 4.2%


The collateral parameters will continue to become more permissive, evolving in accordance with the plot above. This set of parameters explicitly refers to E-mode, and we recommend setting non-E Mode parameters such that the asset is effectively prohibited from borrowing uncorrelated assets.

The underlying configuration will follow our previous listings of related PT assets, applying a minimum liquidation bonus of 2% and a maximum liquidation threshold of 93%.

USDe E-mode

To further enhance capital efficiency, we propose the introduction of a dedicated USDe E-mode for PT-USDe-27NOV2025. Given that both the PT token’s underlying asset (USDe) and the debt asset share the same collateral base, the risk parameterization should not be constrained by typical underlying asset considerations. Instead, the parameterization should be driven by the Pendle AMM’s liquidity dynamics, aligning more closely with the PT’s inherent pricing structure. We outline the projected evolution of the LT, LTV and LB, with the initial parameterization approximately as follows:

LTV: 88.6%

LT: 90.6%

LB: 3.2%


This approach is justified by the correlation between the PT’s underlying and the debt asset, as both are effectively anchored to the same stable asset, USDe. As a result, this E-mode would allow for more efficient capital utilization.

This configuration aligns with our broader Principal Token Risk Oracle framework, which emphasizes parameter flexibility for pairs where the PT’s underlying asset is also the debt asset, ultimately supporting deeper liquidity and optimized capital efficiency.

Initial Discount Rate Per Year and Maximum Discount Rate Per Year

Based on historical observed data and the pricing configuration of the market, our initial recommendations for the discountRatePerYear and maxDiscountRatePerYear are as follows:

Initial discountRatePerYear: 9.51%

maxDiscountRatePerYear: 28.9%


If pricing dynamics change until its listing, such that discountRatePerYear will require a refresh, we will institute such a change accordingly upon listing.

Supply Cap

With PT-USDe-27NOV2025, liquidity depends on both the underlying USDe markets and Pendle’s PT/SY AMM pool, and current depth is moderate. The plot below represents the amount of liquidity available under 3% slippage as the market approaches expiry, given the current liquidity distribution in the AMM. As the market matures and moves closer to expiry, the slippage associated with swapping PT becomes less extreme. This trend is especially pronounced for assets with lower scalarRoot values, i.e. a greater expected implied yield fluctuation, and they tend to have more variance in liquidity concentration. Supported by on-chain liquidity in the Pendle AMM, the market currently facilitates swaps of up to $3.8M with less than 3% slippage.


The SY Liquidity in PT-USDe-27NOV2025’s AMM has reached $4M within the first week of launch, indicating a moderate level of LP support, and has remained at that level since.

Migration of Existing PTs

To support a seamless migration from other PT-USDe assets maturing before November to PT-sUSDe-27NOV2025, we recommend including PT-USDe-25SEP2025 in the newly created E-Modes.

Underlying Oracle

As the underlying PT-USDe is anchored to USDe, we recommend leveraging the Capped USDT/USD feed as the underlying ASSET_TO_USD_AGGREGATOR within the PT-USDe PendlePriceCapAdapter.

Specification




Disclaimer

Chaos Labs has not been compensated by any third party for publishing this recommendation.

Copyright

Copyright and related rights waived via CC0

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Summary

LlamaRisk supports listing PT-USDe-27NOV2025 on the Aave V3 Core instance. At the time of this analysis, the asset matures in approx 90 days. The market environment, characterized by high demand for Ethena’s USDe deposited on Pendle due to its significant points multiplier, has generated user demand for products that allow fixed-rate exposure. Onboarding this Principal Token (PT) will enable users to acquire USDe at a discount for future delivery, effectively locking in a fixed rate in exchange for foregoing the points until maturity. This aligns with Aave’s goal of providing diverse and useful financial primitives.

Given the demonstrated demand for Ethena-related assets and the healthy liquidity profile of this new pool, adding this asset presents a minor incremental risk to the Aave Core market while offering a significant first-mover advantage.

Assessment of PT base asset: Link
Considered PT asset maturity: PT-USDe-27NOV2025

Asset State

Asset Growth

The Ethena ecosystem has demonstrated aggressive growth recently, partially fueled by the large Aave adoption. The total supply of USDe has surged to over 12 billion. A significant portion of this is staked for sUSDe, with the total supply of the yield-bearing sUSDe reaching nearly 4.7 billion, reflecting a staking ratio of approximately 46%.


Source: LlamaRisk Ethena Risk Portal, August 25, 2025

Underlying stability

The stability of the underlying USDe peg and the overall health of the Ethena protocol are critical risk parameters. The market price of USDe remains tightly pegged to $1.00. From a protocol health perspective, Ethena maintains a solvency ratio of 100.56% and is supported by a Reserve Fund capitalized at over $61 million. The historical price chart shows tight peg stability, with only one brief de-peg, a positive indicator for the base asset.


Source: LlamaRisk, August 25, 2025

Underlying Yield Source

The primary incentive for holding USDe is the Ethena Points program. The USDe token does not have a native yield; instead, it provides users a significant 60x points multiplier for the USDe deposited on Pendle.


Source: Ethena, August 25, 2025

These points are highly sought after by users speculating on future Ethena-related rewards (by purchasing YT tokens). The Pendle market for PT-USDe allows users to trade the principal of USDe separate from its points-generating potential. The “implied yield” observed in the market is effectively the price users are willing to pay for future points, creating an opportunity for others to buy USDe at a discount (by purchasing PT tokens) if they are willing to forgo the points until maturity.

Underlying Utility

The primary driver for USDe demand is the 60x points multiplier generated by depositing USDe on Pendle. While some users stake USDe for sUSDe to earn direct yield, a large market segment holds USDe specifically for its points benefits. The existence of multiple PT maturities on Pendle for Ethena assets indicates sustained user interest in speculating on and hedging the value of these incentives.

Market Analysis

Total Supply

The PT-USDe-27NOV2025 maturity pool has demonstrated sustained growth since its launch on August 13. Analysis of the pool’s liquidity shows a rapid ramp-up, stabilizing at a healthy level. We also expect liquidity to improve once more users transition from the September expiry SY-USDe market.


Source: LlamaRisk, August 25, 2025

As of August 25, 2025, the pool’s total available liquidity (TVL) is approximately $5.57M. The total supply of the underlying SY-USDe has reached over $17.5M.

A more detailed breakdown of the pool’s composition is:

  • Total Liquidity: $5.57M
  • SY USDe: $4.35M (78.07%)
  • PT USDe: $1.22M (21.93%)


Source: Pendle, August 25, 2025

These liquidity levels indicate strong market demand for this specific maturity and support the pool’s stability.

Market Depth

The market’s order book reflects healthy and deep liquidity, especially on the sell side. The bid-ask spread on the implied yield is approximately 0.72% (9.28% sell vs 10.00% buy), which this slightly higher than what we see on more adopted PTs. We expect the spread to tighten as the market gets more usage.


Source: Pendle, August 25, 2025

The market depth is particularly robust for buyers of PTs, with significant liquidity, including a single order of over 7M PT at the 9.00% implied yield level.

Price and Yield

The implied yield for PT-USDe reflects the market’s discount rate on USDe based on the opportunity cost of earning points. This rate has remained stable and attractive since the pool’s inception.


Source: LlamaRisk, August 25, 2025

As of this review (93 days to maturity), the implied yield for the PT is ~9.5% APY. This stability suggests a consistent market expectation for the value of Ethena’s points program, making the PT an attractive asset for users seeking predictable returns on a USDe principal.

The pool has the following parameters on Pendle:

  • Liquidity Yield Range: 5% - 27%
  • Input Tokens: USDe
  • Output Tokens: USDe
  • AMM Fee: 0.13%
  • Orderbook Fee: 0.17%

Maturities

The existence of multiple USDe-based maturities on Pendle with a total TVL of over $4B signals strong and persistent user interest in the product. This double maturity availability ensures a more natural rollover of the PT pools, which is also relevant for Aave’s exposure. Before the November pool expires, a new maturity pool will be created, letting users migrate continuously.


Source: Pendle, August 25, 2025

Integrated Venues

PT-USDe-27NOV2025 is not yet integrated into other lending venues due to the recency of the pool. This represents a significant first-mover advantage for Aave to capture the primary lending demand for this asset.

Recommendations

We have aligned the risk parameter recommendations for the PT-USDe-27NOV2025 listing with @ChaosLabs.

Price Feed Recommendation

We recommend using the PT linear discount rate Oracle implementation. The price of the underlying USDe will be derived from the USDT/USD feed, which is consistent with the pricing of other USDe-denominated assets within the Aave ecosystem. The oracle will apply the time-based discount to the USDe price to value the PT. Furthermore, we recommend implementing a CAPO on the oracle to mitigate the risk of upward price manipulation of the underlying USDe price.

The initial discount rate should be slightly higher than the observed market rate to create a small safety margin and slightly underprice the PT token. In addition, the maximal discount should reflect the pool’s LP range with a margin of conservativeness.

Disclaimer

This review was independently prepared by LlamaRisk, a community-led decentralized organization funded partly by the Aave DAO. LlamaRisk serves as Ethena’s Risk Committee member and an independent attestor of Ethena’s PoR solution. LlamaRisk did not receive compensation from the protocol(s) or their affiliated entities for this work. The information should not be construed as legal, financial, tax, or professional advice.

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