Primary Market Rates
This article is for trading firms looking to provide liquidity and arbitrage the mETH primary market and secondary market prices.
Reference Rate
Considered the "fair" or "midpoint" rate for mETH to ETH conversions.
Calculation Method 1
staking.totalcontrolledETH https://etherscan.io/address/0xe3cBd06D7dadB3F4e6557bAb7EdD924CD1489E8f#readProxyContract#F30
meth.totalSupply https://etherscan.io/address/0xd5F7838F5C461fefF7FE49ea5ebaF7728bB0ADfa#readProxyContract#F16
Primary Market Rate
Stake Rate (ETH to mETH)
Calculation Method 1
staking.ExchangeAdjustmentRate https://etherscan.io/address/0xe3cBd06D7dadB3F4e6557bAb7EdD924CD1489E8f#readProxyContract#F11 Note this is calculated in bps, at the current rate of 4bps, this can be applied by * 0.9996.
Calculation Method 2
Query: staking.ethtoMETH () https://etherscan.io/address/0xe3cBd06D7dadB3F4e6557bAb7EdD924CD1489E8f#readProxyContract#F10
Settlement Time
Near instant (next Ethereum block).
Capacity
Unlimited (up to the global maximum meth.totalSupply).
Unstake Rate (mETH to ETH)
Calculation Method 1
Calculation Method 2
Query: staking.mETHToETH https://etherscan.io/address/0xe3cBd06D7dadB3F4e6557bAb7EdD924CD1489E8f#readProxyContract#F19
Settlement Time
Generally requires 1-6 days, see Unstake Lifecycle.
Capacity
Unlimited (amount of mETH in your custody).
Estimations
The mETH-to-ETH rate will generally increase by the average ~4% annualized (see market reference: https://www.validatorqueue.com/).
This rate can decrease if there is a slashing event, see Slashing Event Handling.
This rate can be boosted if Mantle LSP has outsized MEV rewards, or boosted native yield campaigns via the staking.Topup mechanic.
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