Collateral parameters
The complete per-branch risk configuration for all 8 production collaterals — the on-chain CollateralBranchParams set. For the at-a-glance version see Collaterals; for price feeds see Collateral oracle addresses.
Ratios and fractions are stored on-chain as 1e18 fixed-point and shown here as percentages. Source of truth: mainnet-input.json.
Collateral ratios
| Collateral | MCR | CCR | SCR |
|---|---|---|---|
| WETH | 110% | 150% | 109.5% |
| wstETH | 120% | 160% | 119.5% |
| WBTC | 130% | 170% | 129.5% |
| rETH | 120% | 160% | 119.5% |
| weETH | 130% | 170% | 129.5% |
| tBTC | 120% | 160% | 119.5% |
| sUSDS | 105% | 115% | 104.5% |
| PAXG | 130% | 170% | 129.5% |
MCR minimum collateral ratio · CCR critical system collateral ratio · SCR shutdown collateral ratio.
Caps & limits
| Collateral | Bootstrap ceiling | Collateral limit | Collateral frac. limit |
|---|---|---|---|
| WETH | 40M RD | 747,351.3 WETH | 30% |
| wstETH | 40M RD | 353,870.4 wstETH | 10% |
| WBTC | 10M RD | 5,806.6 WBTC | 5% |
| rETH | 20M RD | 32,753.5 rETH | 10% |
| weETH | 10M RD | 163,009.5 weETH | 10% |
| tBTC | 40M RD | 503.1 tBTC | 10% |
| sUSDS | 10M RD | 534,111,270.6 sUSDS | 10% |
| PAXG | 30M RD | 45,441.9 PAXG | 10% |
- Bootstrap ceiling — RD debt cap per branch during the 14-day bootstrap period.
- Collateral limit — maximum collateral (in token units) the branch will accept.
- Collateral frac. limit — maximum share of the collateral token's total supply the system will hold.
Liquidation & fees
| Collateral | Liq. penalty (SP offset) | Liq. penalty (redistribution) | Redemption fee |
|---|---|---|---|
| WETH | 5% | 10% | 1.25% |
| wstETH | 5% | 20% | 1.25% |
| WBTC | 5% | 30% | 1.25% |
| rETH | 5% | 20% | 1.25% |
| weETH | 5% | 30% | 1.25% |
| tBTC | 5% | 20% | 1.25% |
| sUSDS | 2% | 5% | 0.75% |
| PAXG | 5% | 30% | 1.25% |
The SP-offset penalty applies when the Stability Pool absorbs a liquidation; the redistribution penalty applies when it is instead spread across surviving troves on the branch (higher, since redistribution is the fallback path). Redemption fee is the base fee floor. See Liquidation paths and Redemption mechanism.
Rate-controller (utilization) bands
| Collateral | Target | Lower hard | Lower soft | Upper soft | Upper hard |
|---|---|---|---|---|---|
| WETH | 20% | 5% | 10% | 90% | 100% |
| wstETH | 20% | 0% | 5% | 30% | 50% |
| WBTC | 5% | 0% | 2.5% | 20% | 35% |
| rETH | 10% | 0% | 5% | 25% | 40% |
| weETH | 5% | 0% | 2% | 20% | 30% |
| tBTC | 20% | 0% | 5% | 30% | 50% |
| sUSDS | 5% | 0% | 2% | 15% | 25% |
| PAXG | 15% | 0% | 5% | 30% | 40% |
The utilization controller steers each branch's share of total system debt toward its target. Inside the soft band the controller is idle; past a soft bound it applies proportional + integral pressure through the delta-rate offset; the hard bounds clamp the band. The eight targets sum to 100%. See Rate & utilization.