[ARFC] Add FRAX Arbitrum Aave v3

Overview

Chaos Labs supports listing FRAX in Isolation Mode.

Liquidity and Market Cap

When analyzing market cap and trading volumes of assets for listing, we look at data from the past 180 days. The average market cap of FRAX over the past 180 days was ~$1B, and the average daily trading volume was ~$15M (CeFi & DeFi).

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Liquidation Threshold

Analyzing FRAX price volatility over the past, we observed daily annualized volatility of 4.69% and 30-day annualized volatility of 1.04%.

Considering this volatility and the history of FRAX on other chains, we recommend an LT of 75%.

We recommend listing FRAX as borrowable as we do not observe a significant risk to the protocol by allowing to borrow FRAX, as long as it is bound by a well-defined cap.

Debt Ceiling

Following Chaos Labs’ Isolation Mode Methodology, we recommend an initial debt ceiling of $1M. Under the methodology for Isolation Mode, we consider two levels of probabilities for extreme price drops - Medium-High and High. We estimate the probability of an extreme price drop for FRAX as Medium-High. Given this debt ceiling, we do not identify a profitable attack vector under the current liquidity levels.

Supply Cap, Borrow Cap, and Liquidation Bonus

Following Chaos Labs’ approach to initial supply caps, we propose setting the Supply Cap at 2x the liquidity available under the Liquidation Penalty price impact.

Given the concentrated liquidity of FRAX we recommend a 6% Liquidation Bonus and a derived supply cap of 7M FRAX, and a borrow cap of 5.5M FRAX.

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Recommendations

For the Reserve Factor, Liquidation Protocol Fee, and Interest Rate curves, we recommend aligning the parameters to FRAX on Avalanche V3.

Following the above analysis, we recommend listing FRAX with the following parameter settings:

Parameter Value
Isolation Mode Yes
Borrowable Yes
Collateral Enabled Yes
Supply Cap (FRAX) 7M
Borrow Cap (FRAX) 5.5M
Debt Ceiling $1M
LTV 70.00%
LT 75.00%
Liquidation Bonus 6.00%
Liquidation Protocol Fee 10.00%
Variable Base 0.00%
Variable Slope1 4.00%
Variable Slope2 75.00%
Uoptimal 80.00%
Reserve Factor 10.00%
Stable Borrowing Disabled
Flahloanable Yes
Siloed Borrowing No
Borrowed in Isolation No
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