[Gauntlet] - IR Curve and Incentive Recommendations for Stablecoin and WETH Comets

Summary

Gauntlet proposes updating the Interest Rate (IR) curves for all WETH and Stablecoin Comets to better align with prevailing market rates. Specifically, we recommend increasing the borrow APR at the kink from 2.3% to 2.4% for WETH Comets and from 4.5% to 6% for Stablecoin Comets. Additionally, Gauntlet advises revising the allocation of Daily COMP Rewards to optimize incentive spending relative to supply and borrow activity, ensuring a more efficient distribution of rewards.

Specification

WETH Comets

The recommended curves are for the following comets:

Comet
Ethereum WETH
Arbitrum WETH
Base WETH
Optimism WETH
Scroll WETH
Parameter Current Value Recommended Value
Annual Borrow Interest Rate Base 0.01 0.01
Annual Borrow Interest Rate Slope Low 0.0145 0.0155
Borrow Kink 0.9 0.9
Annual Borrow Interest Rate Slope High 1.5 1.26
Annual Supply Interest Rate Base 0 0
Annual Supply Interest Rate Slope Low 0.0165 0.0216
Supply Kink 0.9 0.9
Annual Supply Interest Rate Slope High 1.2 1.125

Stablecoin Comets

The recommended curves are for the following comets:

Comet
Ethereum USDC
Ethereum USDT
Ethereum USDS
Arbitrum USDC Native
Arbitrum USDT
Base USDC Native
Polygon USDC
Polygon USDT
Optimism USDT
Optimism USDC
Scroll USDC
Parameter Current Value Recommended Value
Annual Borrow Interest Rate Base 0.015 0.015
Annual Borrow Interest Rate Slope Low 0.0333 0.05
Borrow Kink 0.9 (0.85 for Arbitrum USDT) 0.9
Annual Borrow Interest Rate Slope High 4 3.4
Annual Supply Interest Rate Base 0 0
Annual Supply Interest Rate Slope Low 0.039 0.054
Supply Kink 0.9 (0.85 for Arbitrum USDT) 0.9
Annual Supply Interest Rate Slope High 3.6 3.034
Comet Current COMP Supply Rewards Recommended COMP Supply Rewards Current COMP Borrow Rewards Recommended COMP Borrow Rewards
Ethereum WETH 35 No Change 20 5
Arbitrum WETH 6 10 15 5
Base WETH 6 No Change 1 0
Optimism WETH 10 No Change 5 0
Ethereum USDC 70 No Change 71 35
Ethereum USDT 70 No Change 50 25
Ethereum USDS 25 No Change 25 5
Arbitrum USDC 17 20 50 10
Arbitrum USDT 7 15 35 10
Base USDC 13 No Change 5 0
Polygon USDC 8 0 3 0
Polygon USDT 8 0 4 0
Optimism USDT 5 No Change 5 0
Optimism USDC 5 No Change 5 0
Scroll USDC 6 No Change 2 0

Stablecoin IR curves

WETH IR curves

Next Steps

  • Target on-chain proposal 12/7/24
2 Likes

Thank you for this proposal, @Gauntlet. we believe this is a solid proposal, and we’ve voted in favor. However, we noticed that while the forum discussions primarily focused on adjusting the interest rate curves and revising COMP rewards, the latest proposal includes an increase in supply caps. We would appreciate it if you could provide more clarity on the market conditions or context that necessitated this change, to ensure transparency and help everyone understand the rationale behind it.

Additionally, we’d love to hear back on the question we previously asked about raising the supply cap for sFRAX. Thank you!