mETH Protocol launches a Buffer Pool using Aave’s ETH market to process ETH redemptions in about 24 hours, aiming to unlock institutional demand for liquid restaking.
Summary
- mETH Protocol adds a Buffer Pool that routes ETH into Aave, targeting 24-hour redemption processing versus Ethereum’s 5–20+ day native exit queues.
- The upgrade uses dual liquidity paths for smaller and institutional-sized redemptions, allocating about 20% of TVL to Aave to blend staking and lending yields.
- Backed by custodians and validators like Fireblocks, Anchorage, Kraken Staked, and Mantle, mETH integrates with EigenLayer, Symbiotic, and 40+ DeFi platforms.
mETH Protocol, an Ethereum liquid restaking provider, announced a liquidity upgrade utilizing Aave’s ETH market to enable faster redemption processing, according to a company statement.
mETH Protocl faces challenges
The protocol, which reported a peak total value locked of $2.19 billion, introduced a Buffer Pool mechanism designed to process ETH (ETH) redemptions within an estimated 24-hour timeframe, subject to buffer capacity and network conditions. The upgrade represents a reduction from Ethereum’s standard 5-20 day exit queues for native staking and most liquid staking tokens, according to the announcement.
The Buffer Pool operates by supplying ETH into Aave’s ETH lending market, enabling the processing of withdrawals with immediate liquidity and no additional fees while maintaining ETH base yields, the company stated. The protocol reported no slashing incidents to date.
Spot ETH exchange-traded funds recorded 65% quarterly growth on net inflows, rising from $6.2 billion to $10.2 billion in 2025, according to the statement. Ethereum’s staking ecosystem has experienced withdrawal queues extending past 40 days in recent months, the company noted.
The upgrade includes a dual liquidity pathway consisting of an Instant Buffer Pool for smaller redemptions and direct Aave ETH Market Reserve access for larger institutional transactions. The system operates on a first-in, first-out model with yields targeting processing within 24 hours, according to the protocol.
Approximately 20% of protocol TVL will be allocated to Aave in stages, creating a blended yield profile combining staking rewards with Aave supply interest, the company stated.
“Institutional capital demands clear exit routes, not opaque withdrawal queues,” said Jonathan Low, Growth Lead at mETH Protocol. “This upgrade transforms mETH Protocol into the most efficient liquidity gateway for ETH, unlocking the next phase of institutional adoption in on-chain finance.”
The Buffer Pool will be replenished based on predefined thresholds to maintain liquidity levels. During periods of high redemption demand when buffer capacity is fully utilized, withdrawals will revert to the standard on-chain exit queue, with processing times dependent on network activity, according to the protocol.
mETH Protocol operates with custody partners including Fireblocks, Anchorage, Copper, and OSL. The protocol allows institutions to mint mETH within custody environments and transfer positions to exchanges such as Bybit for trading, according to the statement.
The protocol is supported by validators including Kraken Staked and is available as trading and margin collateral on exchanges including Bybit and Kraken. mETH constitutes a portion of Mantle Treasury’s ETH reserves and serves as a yield component for Mantle Index, the company stated.
mETH Protocol operates with over 40 decentralized application integrations, including Ethena Labs, Compound, and Pendle, and contributes to restaking networks including EigenLayer and Symbiotic, according to the announcement.
The protocol is incubated by Mantle and is supported by validator and custody partners including A41, P2P.org, Kraken Staked, OSL, and Copper. The protocol is integrated across more than 40 DeFi and exchange platforms and is incorporated in treasury frameworks for decentralized autonomous organizations and corporations, the company stated.
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