# Earn Up to 6% APY on USDC: Marinade Launches Stablecoin Vault on Solana

> Earn up to 6% APY on USDC with Marinade's new stablecoin vault on Solana. One-click from staked SOL to yield. Built on Kamino, managed by RockawayX.

Canonical HTML: https://app.marinade.finance/learn/marinade-usdc-vault/

Looking for the best USDC yield on Solana? Marinade's new USDC Vault lets you earn up to 6% APY on your stablecoins — or convert directly from staked SOL in one click.

## Why Off-Ramping SOL to USD Costs You 1-2%

When Solana stakers want to exit to USD, they're stuck with a painful multi-step process:

1. Unstake SOL (wait 2 days)
2. Swap to USDC (slippage)
3. Transfer to an exchange (fees)
4. Sell for fiat (spread)
5. Withdraw to bank (more fees)

By the time you're done, you've lost 1-2% in compounded fees and waited several days.

We see ~767,000 SOL in monthly unstakes from about 3,500 users — and roughly 75% of them are looking to exit to USD. That's a lot of value lost to friction.

## One-Click from Staked SOL to 6% USDC Yield

The Marinade USDC Vault catches this flow at the moment of unstaking. Instead of losing money on the way out, you start earning immediately.

**Target APY:** Up to 6% (variable, based on market conditions)

You're not getting spendable fiat — you're getting USDC that earns yield while you figure out your next move. Direct fiat off-ramps are coming in a future release.

## How the Marinade USDC Vault Works

Three ways to deposit:

1. **Unstake to Vault:** When you unstake SOL or mSOL, choose "Convert to USD Vault." One click handles everything — unstaking, swapping to USDC via Jupiter, and depositing into the vault.
2. **Direct USDC Deposit:** Already have USDC sitting idle? Deposit directly from the Marinade Earn page and start earning immediately.
3. **Withdraw Anytime:** Pull your USDC back to your wallet whenever you want. Instant withdrawals within the vault's liquidity buffer.

Everything happens on-chain on Solana. Sub-second finality, fees under $0.01.

## Who's Behind the Vault: Kamino + RockawayX

We built this with two partners we trust:

### Kamino Finance — The Infrastructure

Kamino is Solana's largest lending protocol with over $3B in total value locked. They provide the smart contracts, lending markets, and vault mechanics that power the Marinade USDC Vault.

- 18 independent security audits
- Zero bad debt since inception
- Battle-tested Kamino Lend V2 infrastructure

### RockawayX — The Vault Manager

RockawayX is one of Solana's earliest seed backers, managing $2B+ in digital assets across 100+ protocol partnerships.

For this vault, they run a conservative mixed-market strategy:

- ~10% in Kamino main lending markets
- ~10% in Maple institutional credit markets
- Remainder in RWA (real-world asset) markets

They've operated through every major stress event since 2022 with zero defaults.

*"Our job is to underwrite every allocation properly and rebalance when conditions move. We've run market-neutral strategies through every major stress event since 2022 with zero defaults. That's the standard we're applying here."* — Nassim Alexandre, Head of Onchain Asset Management, RockawayX

## Who Controls Your Funds?

**Marinade owns and controls the vault.** Our Council multisig (3/5) is the Strategy Manager with ultimate authority. We can swap managers, wind down the vault, or change configurations at any time.

**RockawayX operates under our authority.** They deploy funds and rebalance across markets, but they can't withdraw to external wallets or change vault settings.

**The trust hierarchy:** Marinade (owner) → RockawayX (operator) → Kamino (infrastructure)

Your funds sit on-chain in a Kamino Lending Vault. You receive an SPL token representing your vault share, which you can transfer or withdraw whenever you want. This isn't Marinade holding your USDC — it's you holding a vault share token that represents your position.

## Risks to Consider

- Yield is variable and not guaranteed
- Smart contract risk exists (Kamino infrastructure)
- USDC depeg risk
- Operational risk (RockawayX as delegated manager)

Always do your own research before depositing.

## Start Earning Up to 6% on Your USDC

Stop losing 1-2% every time you off-ramp. Start earning instead.

[**Deposit USDC Now →**](https://marinade.finance/usdc)