# \[SIP2.11\] Adding new Silo Vaults to USDC.e Sonic vault **URL:** \ **Category:** Summer Improvement Proposals \[SIPs\]\ **Tags:** usdc, sip2, ark-onboarding, sonic\ **Created:** [May 28, 2025, 10:57am UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233 "2025-05-28T10:57:42Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![halaprix](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/halaprix/32/13_2.png) [@halaprix](https://forum.summer.fi/u/halaprix)\ **Post date:** [May 28, 2025, 10:57am UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/1 "2025-05-28T10:57:42Z")
**Summary** This SIP proposes the integration of three existing Silo Finance USDC vaults, currently deployed on the Sonic network, into our protocol’s “earn side” offerings. The vaults—USDC - Re7 USDC, USDC - Varlamore USDC Growth, and USDC - Apostro USDC—offer users yield composed of native interest, wS tokens, and SILO tokens, currently estimated around 9.5% APR. This initiative aims to diversify and bolster yield generation options for our users, particularly in light of recent adjustments to other reward structures. **Motivation** The primary driver for this proposal is to enhance the yield-earning opportunities available to the protocol’s users. With changes such as the removal of previous Euler wS rewards, introducing new, competitive yield sources is essential. The three selected Silo Sonic USDC vaults present attractive blended APRs (currently ~9.5%) through a combination of native interest, wS token rewards, and SILO token rewards. Integrating these vaults on the “earn side” will provide users with robust options to grow their USDC holdings and benefit from the Silo ecosystem, helping to maintain the protocol’s competitiveness and address any potential yield gaps. **Specification** This proposal is to whitelist and integrate the following Silo Finance Sonic vaults for earn-side deposits within our protocol: | Parameter | Vault 1: USDC - Re7 USDC | Vault 2: USDC - Varlamore USDC Growth | Vault 3: USDC - Apostro USDC | | --- | --- | --- | --- | | **Vault Name (Protocol)** | Silo Sonic USDC Earn - Re7 | Silo Sonic USDC Earn - Varlamore | Silo Sonic USDC Earn - Apostro | | **Network** | Sonic | Sonic | Sonic | | **Underlying Asset** | USDC | USDC | USDC | | **Silo Vault Address** | `0xF75AE954D30217B4EE70DbFB33f04162aa3Cf260` | `0xF6F87073cF8929C206A77b0694619DC776F89885` | `0xcca902f2d3d265151f123d8ce8FdAc38ba9745ed` | | **Yield Components** | Native Interest + wS tokens + SILO tokens | Native Interest + wS tokens + SILO tokens | Native Interest + wS tokens + SILO tokens | | **Reported APR** | ~9.5% (Verify at implementation) | ~9.5% (Verify at implementation) | ~9.5% (Verify at implementation) | | **Integration Type** | Earn-side deposits enabled | Earn-side deposits enabled | Earn-side deposits enabled | | **Risk Level** | To be reviewed by Risk Committee; not for collateralization in this scope. | To be reviewed by Risk Committee; not for collateralization in this scope. | To be reviewed by Risk Committee; not for collateralization in this scope. | **Technical Implementation:** The integration should focus on creating a seamless pass-through mechanism for users to deposit USDC and receive the accrued native interest, wS tokens, and SILO tokens directly. **Risk Considerations:** While these vaults are being integrated for yield generation on the earn side, this proposal does not include them for use as collateral or for borrowing against within our protocol at this stage. A thorough risk assessment of these vaults as earn options should be conducted by the relevant risk committee prior to implementation. **Voting** It is proposed that these three Silo Finance Sonic USDC vaults (USDC - Re7 USDC, USDC - Varlamore USDC Growth, and USDC - Apostro USDC) be integrated into the protocol’s earn-side offerings as specified above. A formal governance vote (e.g., on-chain or Snapshot, per DAO procedures) will be initiated to authorize this integration, pending community and delegate feedback. ---
**Author:** ![jensei](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/jensei/32/69_2.png) [@jensei](https://forum.summer.fi/u/jensei)\ **Post date:** [May 28, 2025, 2:48pm UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/2 "2025-05-28T14:48:27Z")
Thank you @halaprix for a solid follow-through on the RFC. Big +1 from me on this direction — good balance of optionality and capital efficiency. –jensei ---
**Author:** ![techsqrt](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/techsqrt/32/389_2.png) [@techsqrt](https://forum.summer.fi/u/techsqrt)\ **Post date:** [May 29, 2025, 10:06am UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/3 "2025-05-29T10:06:20Z")
Thank you @halaprix, Looks attractive to me (though I’m not fully familiar with the technical or risk details of these vaults). Just a quick reminder: any [Summer.fi](http://Summer.fi) Sonic liquidity is currently eligible for the [**12x AP Sonic Points campaign**](https://x.com/summerfinance_/status/1916902723150307751), which is expected to run until June 2025, with a likely follow-up in subsequent Sonic Points campaigns, should they be run. ---
**Author:** ![MasterMojo](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/mastermojo/32/8_2.png) [@MasterMojo](https://forum.summer.fi/u/MasterMojo)\ **Post date:** [May 29, 2025, 11:49am UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/4 "2025-05-29T11:49:30Z")
I think this is a solid add to the low risk vaults. ---
**Author:** ![BlockAnalitica](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/blockanalitica/32/86_2.png) [@BlockAnalitica](https://forum.summer.fi/u/BlockAnalitica)\ **Post date:** [June 3, 2025, 6:53pm UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/5 "2025-06-03T18:53:21Z")
The proposed Silo Vaults for the Low Risk Fleet Sonic USDC.e have been evaluated using our risk model, which incorporates metrics such as TVL, collateral quality, and exposure. Following this assessment, we propose the following initial parameters: | Ark | Symbol/Vault | maxCap | Max. %TVL | maxInflow | maxOutflow | | --- | --- | --- | --- | --- | --- | | siloV2 | re7-usdc | 135,000 | 34.00% | 135,000 | 135,000 | | siloV2 | varlamore-usdc-growth | 2,000,000 | 35.00% | 2,000,000 | 2,000,000 | | siloV2 | apostro-usdc | 3,200,000 | 36.00% | 3,000,000 | 3,200,000 | The cooldown period for all Arks in this Fleet is 10 minutes. These parameters ensure the Fleet operates within controlled risk limits while accommodating expected demand. Note that this Fleet already integrates isolated Silo markets, and the proposed vaults will be managed by third parties who allocate liquidity to other specific Silo-listed markets. Each vault’s exposure has been evaluated individually, and the proposed parameters reflect conservative limits aligned with the Fleet’s low-risk profile. ---
**Author:** ![Eren\_DAOplomats](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/eren_daoplomats/32/98_2.png) [@Eren\_DAOplomats](https://forum.summer.fi/u/Eren_DAOplomats)\ **Post date:** [June 21, 2025, 8:26am UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/6 "2025-06-21T08:26:09Z")
The addition of 3 Arks increases cross-chain functionality, and supports broader protocol scalability and resilience, therefore we have **[voted for](https://forum.summer.fi/t/daoplomats-delegate-platform/226/3)** this proposal ---
**Author:** ![jensei](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/jensei/32/69_2.png) [@jensei](https://forum.summer.fi/u/jensei)\ **Post date:** [March 11, 2026, 3:03pm UTC](https://forum.summer.fi/t/sip2-11-adding-new-silo-vaults-to-usdc-e-sonic-vault/233/7 "2026-03-11T15:03:10Z")
Closed on March 11, 2026, 3:03pm UTC