LDO

Custom price feed for the Lido DAO governance token (LDO).

Custom price feed for the Lido DAO governance token (LDO). No direct LDO/USD feed exists, so the price is composed from a Chainlink LDO/ETH feed and the NAV's own ETH/USD base price.

Source: LDO_CustomPriceFeed.sol

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Approach

Chainlink LDO/ETH × NAV base ETH/USD (getPriceDataNoDivergence(WETH))

The base/USD term is sourced from the NAV's own selector — see Base/USD from the NAV's own selector.

LDO price feed — how its oracle inputs compose into a USD price, with the staleness gate.

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Price calculation

price = (LDO/ETH) × (ETH/USD) / 10^(LDO/ETH decimals)

Input	Source	Description
LDO/ETH	Chainlink LDO/ETH feed (latestRoundData)	LDO price in ETH (18 dec)
ETH/USD	NAV base — getPriceDataNoDivergence(WETH) (8 dec)	the NAV's primary ETH/USD price

The LDO/ETH leg is a Chainlink feed; the ETH/USD leg is the NAV's primary base price. The divisor is 10 ** ldoToEth.decimals(). Output is 8 decimals (inherited from the ETH/USD leg via _decimals).

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Constructor

constructor(
    address ldo_,
    address ldoToEthChainlinkAddress_,
    uint256 ldoToEthChainlinkHeartbeat_,
    address nav_,
    address baseAsset_
)

Parameter	Description
ldo_	LDO token address (the supported underlying asset)
ldoToEthChainlinkAddress_	Chainlink LDO/ETH aggregator
ldoToEthChainlinkHeartbeat_	Staleness window (seconds) for the LDO/ETH feed
nav_	NAVCalculator (proxy) — supplies the base asset's USD price via getPriceDataNoDivergence
baseAsset_	The registered base asset whose USD price is read (WETH)

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Staleness

The LDO/ETH heartbeat is checked directly. getLatestPrice() returns stale = true if the LDO/ETH feed satisfies block.timestamp − updatedAt ≥ heartbeat, if either leg's answer is ≤ 0, if the LDO/ETH updatedAt is in the future (clamped to block.timestamp), or if the NAV reports the base asset (WETH) stale — all its feeds stale. The base leg's updatedAt comes from the NAV's selected feed. The reported updatedAt is the older of the two legs.

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Chains

Deployed on Ethereum.