[RFC] Onboard Two New ETH Vaults: Including Lazy Summer's first higher risk strategy

General Discussion Ideas
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Overview

This proposal seeks to introduce two new ETH vaults to Summer.fi:

  • ETH Fleet - Mainnet (Higher Risk)
  • ETH Fleet - Base (Lower Risk)

These vaults aggregate top-performing ARKs across multiple platforms and risk profiles, providing users with diversified exposure to ETH-native yield strategies while improving APY and expanding protocol coverage across Ethereum Mainnet and Base.

The ETH Mainnet vault combines higher-risk, higher-reward strategies from Morpho, Fluid, and Euler, and includes innovative sources of ETH-native yield such as MEV Capital and Re7. Two additional ARKs — Fluid Lite ETH and Origin ETH (oETH) cc @pete — are also being considered for inclusion and are part of this RFC. Both offer novel, decentralized ETH yield strategies and will be evaluated further with the community and @BlockAnalitica before final inclusion.

The ETH Base vault curates a lower-risk set of ETH lending strategies from established protocols such as Aave, Compound, and institutional-grade Morpho deployments like Gauntlet and Steakhouse.

Motivation

As Summer.fi continues its push toward $100M+ in TVL, expanding ETH vaults is key to long-term growth. These new vaults directly support that goal by:

  • Expanding Yield Options: Introduces more ETH-native strategies, curated by risk.
  • Segmenting by Risk Appetite: Serves both conservative and growth-oriented ETH holders.
  • Boosting APY: Aggregates multiple high-performance lending and strategy ARKs.
  • Strengthening L2 Coverage: Extends vault offerings on Base, encouraging broader user participation.
  • Reinforcing Summer.fi’s Positioning: Delivers on the protocol’s promise of optimized, automated DeFi yield for everyone.

Specifications

ETH Fleet – Mainnet (Higher Risk)

  • Vault Deposit Token: ETH
  • Network: Ethereum Mainnet
  • Risk Level: Higher Risk
  • ARKs:
ARK Name Contract Address
Euler Swaap Lend WETH 0x716bF454066a84F39A2F78b5707e79a9d64f1225
Euler Prime WETH 0xD8b27CF359b7D15710a5BE299AF6e7Bf904984C2
Morpho Gauntlet WETH Core 0x4881Ef0BF6d2365D3dd6499ccd7532bcdBCE0658
Morpho MEV Capital WETH 0x9a8bC3B04b7f3D87cfC09ba407dCED575f2d61D8
Morpho Re7 WETH 0x78Fc2c2eD1A4cDb5402365934aE5648aDAd094d0
Fluid WETH 0x67e40d401286f21e92adbf8db2d392a1af735a95
Fluid Lite ETH (Pending) 0x6f40d4a6237c257fff2db00fa0510deeecd303eb
Origin oETH (Pending) 0x856c4efb76c1d1ae02e20ceb03a2a6a08b0b8dc3

ETH Fleet – Base (Lower Risk)

  • Vault Deposit Token: ETH
  • Network: Base
  • Risk Level: Lower Risk
  • ARKs:
ARK Name Contract Address
Euler Base ETH 0xD9d81Ec8187e7323D8282f758a82c3E39c889aE9
Morpho Moonwell Flagship ETH 0xa0E430870c4604CcfC7B38Ca7845B1FF653D0ff1
Aave V3 WETH 0x4d5f47fa6a74757f35c14fd3a6ef8e3c9bc514e8
Compound V3 WETH 0xa17581a9e3356d9a858b789d68b4d866e593ae94
Fluid ETH 0x67e40d401286f21e92adbf8db2d392a1af735a95
Morpho Steakhouse WETH 0xe36cdbd69adf2f74c8ab987a1cfd448ae91fa153
Morpho Gauntlet WETH Core (Base) 0x6b13c060f13af1fdb319f52315bbbf3fb1d88844

$SUMR Rewards

$SUMR incentives will be allocated equally across all ARKs in the ETH vaults, unless otherwise determined by governance. This ensures consistent incentives for depositors across strategies. Final rewards and gauge weightings will be confirmed during the SIP process and subject to DAO vote.

Voting

This post serves as the RFC for both ETH vaults. A formal SIP will follow based on community feedback and risk review from @BlockAnalitica and relevant stakeholders. Pending due diligence, Fluid Lite ETH and Origin oETH are included in this vote to expedite integration pending positive evaluation.

2 Likes
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Really solid RFC — love the kick-off here, and especially the move to bring higher-risk ETH mainnet strategies into SummerFi in a transparent, opt-in format. This opens the door for power users already chasing yield elsewhere, while keeping the protocol aligned with structured and responsible growth.

The ETH Base Fleet is looking sharp too — solid set of lower-risk ARKs and diverse coverage to broaden reach.

Quick note on Euler Prime WETH — would be helpful to have more clarity on APY assumptions. Since rewards are in rEUL and users can only claim 20% instantly (rest being burned if they don’t vest), this could significantly impact real yield unless the 6-month vesting is factored in. might be worth flagging this in the risk scoring framework from @BlockAnalitica to keep expectations aligned.

+1 on SUMR rewards being evenly spread across ARKs for now — and great to see optional ARKs like Fluid Lite and oETH already in the mix.

Excited to support this moving forward toward SIP — let’s keep the bar high on risk review and user experience as we scale into higher risk lane.

– jensei

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There was no ETH strategy on SummerFi for Base at the time of posting so this wasn’t included in my original RFC, but if there is an ETH vault coming to Base, then I believe superOETHb should be considered. OETH is a simpler version of superOETHb on Base, and is also a core component of superOETHb.

2 Likes