# \[RFC\] Update USDC Arbitrum Yield Sources

**URL:** <https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507>\
**Category:** Request for Comment \[RFCs\]\
**Tags:** usdc, arbitrum, ark-onboarding, rfc\
**Created:** [November 24, 2025, 11:13am UTC](https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507 "2025-11-24T11:13:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![samehueasyou](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@samehueasyou](https://forum.summer.fi/u/samehueasyou)\
**Post date:** [November 24, 2025, 11:13am UTC](https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507/1 "2025-11-24T11:13:14Z")

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# Context / goal

Onboard additional ARKs to the **USDC vault fleet on Arbitrum** to maintain coverage of top Arbitrum stablecoin yield leaders.

* * *

# Proposed ARKs

1. Ark/Yield source: **Clearstar USDC Reactor (Morpho Blue)**

Risk: **Low/Moderate (requested)**

**Links**

App: [https://app.morpho.org/arbitrum/vault/0xa53Cf822FE93002aEaE16d395CD823Ece161a6AC/clearstar-usdc-reactor](https://app.morpho.org/arbitrum/vault/0xa53Cf822FE93002aEaE16d395CD823Ece161a6AC/clearstar-usdc-reactor)  
Contract: —  
Vaults fyi: —

1. Ark/Yield source: **Clearstar High Yield USDC (Morpho Blue)**

Risk: **High (requested)**

**Links**

App: [https://app.morpho.org/arbitrum/vault/0x64CA76e2525fc6Ab2179300c15e343d73e42f958/clearstar-high-yield-usdc](https://app.morpho.org/arbitrum/vault/0x64CA76e2525fc6Ab2179300c15e343d73e42f958/clearstar-high-yield-usdc)  
Contract: —  
Vaults fyi: —

* * *

# Informal Support Indicator

Should Lazy Summer DAO proceed with drafting a SIP to onboard these markets to the Arbitrum USDC Fleet?

_Poll ([view on site](https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507/1))_

[@Recognized\_Delegates](https://forum.summer.fi/groups/recognized_delegates) @jensei @BlockAnalitica

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**Author:** ![NoMoneyNoProblem](https://avatars.discourse-cdn.com/v4/letter/n/c4cdca/32.png) [@NoMoneyNoProblem](https://forum.summer.fi/u/NoMoneyNoProblem)\
**Post date:** [December 2, 2025, 3:36pm UTC](https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507/2 "2025-12-02T15:36:52Z")

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That “ClearstarUSDC Reactor” looks very bit weird. The yield is only 0.7% APY, all in ARB tokens.

Why is it allocating 100% of the vault to an s_SuperUSD/USDC_ market? That market is of a microcrap token (~$100k TVL, 11 holders) with literally zero borrow activity.

 ![image](https://canada1.discourse-cdn.com/flex009/uploads/summer/original/1X/3c100a692f957298b212eb2a0b05a1b68a5e3caf.png)

The underlying token sSuperUSDC is by ‘SuperReturn’, which is allocated to various higher risk markets, such as Euler’s ‘Frontier Strata’ (not actively risk managed!), Midas RWAs, Dialectic tokenized hedge funds, Yearn Degen USDC and Hyperithm USDC Morpoh markets. Also positions on new chains like Soneium and Plume.

> **[SuperReturn](https://www.superreturn.ai/super-usd/performance)**
>
> Your AI Development Operations Platform

\*\*How is this low risk???\*\*

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**Author:** ![NoMoneyNoProblem](https://avatars.discourse-cdn.com/v4/letter/n/c4cdca/32.png) [@NoMoneyNoProblem](https://forum.summer.fi/u/NoMoneyNoProblem)\
**Post date:** [December 2, 2025, 3:39pm UTC](https://forum.summer.fi/t/rfc-update-usdc-arbitrum-yield-sources/507/3 "2025-12-02T15:39:54Z")

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(post deleted by author)