Lido Expands ETH Staking to Arbitrum, Base, Linea, and Optimism

Lido has announced the integration of direct ETH staking functionality for the Layer 2 networks Arbitrum, Base, Linea, and Optimism into its official staking interface, which will be launched on October 15. This process is supported by Chainlink's cross-chain interoperability protocol CCIP, allowing users to obtain wstETH directly on the originating network without manually bridging ETH to Ethereum and back. Users' ETH will be exchanged for wstETH through dedicated liquidity pools on the same L2, with Chainlink's price feeds reflecting the exchange rate of the Lido protocol rather than exchange market prices. The underlying staking still occurs on the Ethereum mainnet: ETH deposited by users on L2 will be automatically bridged to Ethereum and staked via Lido, after which wstETH will be sent back to replenish the local liquidity pool. Users receive a wrapped version of stETH, wstETH, which maintains a fixed balance while its value reflects staking rewards. This functionality integrates existing cross-chain infrastructure into Lido's own interface. Users will still need to pay L2 transaction gas fees, and cross-chain costs come from the separately funded contract balance rather than staker deposits.

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