Deprecation of Small-cap Stablecoins on V2 Ethereum
01Summary
Proposal to deprecate five smaller stablecoins (USDP, GUSD, LUSD, FRAX, sUSD) on Aave V2 by disabling borrowing, dramatically increasing interest rates and reserve factors, and freezing markets. Phase I aims to encourage loan repayment through higher borrower costs and lower supplier yields.
- Type
- protocol deprecation
Key changes
- Reserve Factor increased to 95% for all five stablecoins (from 45-55%), reducing supply APY(high)
- Borrowing disabled for all five stablecoins(high)
- Base Rate increased to 3% for all five stablecoins (from 0%)(high)
- Slope1 increased to 15% for all five stablecoins (from 12%)(medium)
- Slope2 increased to 200% for all five stablecoins (from 75-150%)(high)
- UOptimal decreased to 20% for all five stablecoins (from 70-80%)(high)
- Reserves frozen to prevent new supplies and borrowings(high)
Notable concerns
- USDP recently experienced volatility and was frozen, triggering this deprecation effort
- Limited liquidity in these stablecoins creates price manipulation risks
- Phase I is step one of a multi-phase deprecation process
- Further parameter adjustments may follow based on Phase I observations
Generated by Kvorum
02Description
Simple Summary
A proposal to deprecate USDP, GUSD, LUSD, FRAX, and sUSD on Aave V2
Motivation
Following our ongoing efforts to deprecate the V2 markets and following the recent USDP volatility and subsequent freeze, we propose deprecating smaller market cap stablecoins on V2.
Deprecation Phase I
Recent events have highlighted the need for Aave to reduce its V2 exposure to lesser-used stablecoins, many of which have limited liquidity, thus allowing for price manipulation and other potentially harmful events. Previously, the community followed a two-phase process to deprecate stablecoins, with BUSD and TUSD as examples. Given the success of these, we propose a similar path forward. Notably, none of the below stablecoins are collateral assets, reducing the complication of the process.
For USDP, GUSD, LUSD, FRAX, and sUSD we propose the following parameters:
| Parameter | Proposed Value |
|---|---|
| Reserve Factor | 95% |
| Borrowing Enabled | No |
| Base Rate | 3% |
| Slope1 | +3% |
| Slope2 | 200% |
| UOptimal | 20% |
The goal of Phase I is to increase borrower APR to encourage borrowers to repay their loans; this is achieved through higher Base Rate, Slope1, Slope2, and lower UOptimal. Additionally, we recommend leaving them frozen to prevent new supplies and borrowings. Finally, we increase the reserve factor to reduce supply APY, reducing the attractiveness of supply as borrowers pay increased rates.
Following observations from Phase I, we may move to further decrease UOptimal, increase Reserve Factor, and increase Slope2.
Specification
USDP
| Parameter | Current Value | Proposed Value |
|---|---|---|
| Reserve Factor | 45% | 95% |
| Borrowing Enabled | Yes | No |
| Base Rate | 0% | 3% |
| Slope1 | 12% | 15% |
| Slope2 | 75% | 200% |
| UOptimal | 80% | 20% |
GUSD
| Parameter | Current Value | Proposed Value |
|---|---|---|
| Reserve Factor | 45% | 95% |
| Borrowing Enabled | Yes | No |
| Base Rate | 0% | 3% |
| Slope1 | 12% | 15% |
| Slope2 | 150% | 200% |
| UOptimal | 70% | 20% |
LUSD
| Parameter | Current Value | Proposed Value |
|---|---|---|
| Reserve Factor | 50% | 95% |
| Borrowing Enabled | Yes | No |
| Base Rate | 0% | 3% |
| Slope1 | 12% | 15% |
| Slope2 | 75% | 200% |
| UOptimal | 80% | 20% |
FRAX
| Parameter | Current Value | Proposed Value |
|---|---|---|
| Reserve Factor | 55% | 95% |
| Borrowing Enabled | Yes | No |
| Base Rate | 0% | 3% |
| Slope1 | 12% | 15% |
| Slope2 | 100% | 200% |
| UOptimal | 80% | 20% |
sUSD
| Parameter | Current Value | Proposed Value |
|---|---|---|
| Reserve Factor | 55% | 95% |
| Borrowing Enabled | Yes | No |
| Base Rate | 0% | 3% |
| Slope1 | 12% | 15% |
| Slope2 | 100% | 200% |
| UOptimal | 80% | 20% |
References
- Implementation: AaveV2Ethereum
- Tests: AaveV2Ethereum
- Snapshot
- Discussion
Copyright
Copyright and related rights waived via CC0.
03Mismatch analysis
The proposal follows Aave's standard governance pattern: a single top-level action that calls execute() on a payload contract, which internally performs the detailed reserve configuration changes (reserve factor, interest rate curve parameters, freeze, and disabling borrowing) for USDP, GUSD, LUSD, FRAX, and sUSD as described in the specification tables. The decoded calldata only exposes this single execute() call and does not unpack the internal logic of the payload contract, so it is not possible to directly verify each specific numeric parameter (95% reserve factor, 3% base rate, 15% slope1, 200% slope2, 20% UOptimal) against on-chain values from this data alone. This is consistent with typical Aave V2/V3 payload proposals, where the linked implementation contract (referenced in the description) contains the actual parameter-setting code. Given the lack of granular calldata detail, I cannot confirm or deny discrepancies in the specific values, but there is no evidence of a mismatch, unexpected target, or extra/omitted action in what is decodable. Confidence is therefore low, and per guidance this should not be surfaced as a warning-level discrepancy. The overall action target and pattern (payload execution for deprecation) align with the description's stated intent to deprecate these five stablecoins on Aave V2.'
Generated by Kvorum
04Actions
- Target
- 0x0456…fb41
- Value
- 0 wei
- Function
- fallback()
- Arguments
{}- Calldata
05Tally
Summed from votes
06Voters
No votes recorded yet.
07Forum
No forum thread is confidently linked to this proposal.
08Similar proposals
- aaveexecutedProposal to Remove USDS from sUSDe Liquid E-Mode in Aave Prime Instance79%
- aaveexecutedUSDC (old) deprecation on Gnosis Chain Instance79%
- aaveexecutedsUSD Risk Parameter Adjustment79%
- aaveexecutedRemove USDe Debt Ceiling and Introduce USDe Stablecoins E-mode77%
- aaveexecutedsUSDe and USDe Price Feed Update76%
- aaveexecutedChaos Labs Parameter Recommendations sUSD on V3 Optimism76%
- aaveexecutedUSDS borrow rate update on Core and Prime Instances74%
- aaveexecutedUpdate USDS & GHO Borrow Rate74%
- aavecanceledEnhancements in Aave v3 Gnosis Chain Instance74%
- aaveexecutedEnhancements in Aave v3 Gnosis Chain Instance74%