> For the complete documentation index, see [llms.txt](https://etherfi.gitbook.io/etherfi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://etherfi.gitbook.io/etherfi/products/borrow/lending-market-parameters.md).
# Lending Market Parameters
Overview of contracts and asset configuration
## Supported assets and parameters
{% hint style="warning" %}
The following Optimism Lending Protocol parameters were last updated on August 27, 2026. Market parameters, rates, caps, and borrowable assets can change. The app is the source of truth for your current Product LTV, health factor, and available-to-borrow amount.
{% endhint %}
For each asset there are a few parameters defined in the Lending Protocol spoke:
* Collateral factor (CF): The percentage of an asset's value used to calculate health factor and determine whether a position can be liquidated
* Max liquidation bonus: The cap on the discount a liquidator receives when claiming collateral
* Liquidation fee: The protocol's cut of the liquidation bonus
* Collateral risk: A per-asset score that reflects how risky an asset is to lend against and increases the interest premium
Product LTV is the app-enforced limit used to calculate borrowing power. The Product LTV values are more conservative than the Aave market collateral factor (CF). See [Borrowing Power, Health Factor, and Liquidation](/etherfi/products/borrow/borrowing-power-and-liquidation.md).
| Asset | Product LTV | CF | Max liq. bonus | Liq. fee | Collateral risk | Borrowable |
| ------------- | ----------: | --: | -------------: | -------: | --------------: | ---------- |
| USDC | 81% | 90% | 5% | 10% | 0 bps | yes |
| USDT | 81% | 90% | 5% | 10% | 0 bps | no |
| EURC | 81% | 90% | 7.5% | 10% | 0 bps | no |
| frxUSD | 81% | 90% | 7.5% | 10% | 0 bps | no |
| weETH | 55% | 75% | 10% | 10% | 0 bps | no |
| WETH | 55% | 75% | 10% | 10% | 0 bps | yes |
| eBTC | 52% | 72% | 12.5% | 10% | 0 bps | no |
| ETHFI | 20% | 40% | 15% | 10% | 0 bps | no |
| sETHFI | 20% | 40% | 20% | 10% | 0 bps | no |
| OP | 20% | 40% | 15% | 10% | 0 bps | no |
| WHYPE | 45% | 65% | 12.5% | 10% | 0 bps | no |
| beHYPE | 40% | 60% | 15% | 10% | 0 bps | no |
| liquidETH | 50% | 70% | 15% | 10% | 0 bps | no |
| liquidBTC | 50% | 70% | 15% | 10% | 0 bps | no |
| liquidUSD | 80% | 90% | 10% | 7.5% | 0 bps | no |
| liquidReserve | 80% | 90% | 10% | 7.5% | 0 bps | no |
| liquidEUR | 80% | 90% | 12.5% | 7.5% | 0 bps | no |
| liquidRWA | 75% | 90% | 12.5% | 7.5% | 0 bps | no |
| QQQx | 66% | 78% | 10% | 10% | 0 bps | no |
| SPYx | 67% | 78% | 10% | 10% | 0 bps | no |
| PAXG | 68% | 80% | 10% | 10% | 0 bps | no |
| TBLLx | 70% | 80% | 10% | 10% | 0 bps | no |
eUSD is being wound down as a lending market asset. It no longer counts as collateral and no new supplies are accepted. Existing balances can still be withdrawn.
### Interest curves
The interest rate curve is two straight lines with fixed slopes, the interest rate transitions between slopes when the market utilisation reaches the kink threshold.
| Asset | Liquidity fee | Kink | Base | slope 1 | slope 2 |
| ----- | ------------- | ---- | ----- | ------- | ------- |
| USDC | 30% | 85% | 3.00% | 1.25% | 10% |
| WETH | 30% | 85% | 1.00% | 1.50% | 14% |
### Global liquidation config
| Parameter | Value |
| --------------------------- | ----- |
| Target health factor | 1.24 |
| Health factor for max bonus | 0.90 |
| Liquidation factor | 0.9 |
## Contract details
Contract
Address
AaveV4Lens
0x35Ba1a778359421F2757154a35BD4881AcE98C91
Spoke
0xdffcC3536D932eb51Df51a7F5FA407c4270d5308
Hub
0x66753c4e3fC84f1eD0e3C267C927284E9d90C572
---
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