Weighted Asset Rate

Weighted asset rate represents the average price of the assets backing satUSD.

It calculates a debtTokenMinted-weighted average rate across all supported backing assets. In other words, it shows the overall price level of the asset pool supporting satUSD.

How It Works

The function iterates through all supported assets and applies the following rules:

• Only supported assets are included

• Only assets with debtTokenMinted > 0 are counted

• Each asset is weighted by its debtTokenMinted

• If an asset does not use an oracle, its price is treated as $1

• If an asset uses an oracle, the on-chain price is fetched and validated against minPrice and maxPrice

Formula:

Weighted Asset Rate = Σ(asset price × debtTokenMinted) / Σ(debtTokenMinted)

Contract Integration

Protocols, vaults, or monitoring contracts can call getWeightedAssetRate() to read the debtTokenMinted-weighted average price of the assets backing satUSD.

Contract Addresses

Contracts can integrate with the NexusYieldManagerFacet through the SatoshiXApp contract address on each chain.

For deployed addresses, please refer to the Deployed Contract page and use the corresponding SatoshiXApp address for that chain.

For example, to read the value on Ethereum, use the Ethereum SatoshiXApp address shown on that page:

Ethereum

Interface

interface INexusYieldManagerFacet {
    function getWeightedAssetRate() external returns (uint256);
}

Return Value

getWeightedAssetRate() returns a uint256 scaled by 1e18.

This means:

• 1e18 = $1.00

• 1.02e18 = $1.02

• 0.98e18 = $0.98

Failure Cases

The call may revert in the following cases:

• NoActiveAssets() if no asset currently contributes weight

• InvalidPrice(uint256 price) if an oracle price is outside the allowed range