Where to Earn Yield on USDC on Stellar (2026)

USDC yield on Stellar at a glance

Rates are snapshots from 6 October 2026 unless stated and change daily. Within each route, venues are ordered by the liquidity behind the rate.

Route	Where	Typical rate (dated)	Main risk
Lending supply	Blend Fixed pool	6.69% (30-day avg 7.56%), 6 Oct	Utilisation can lock withdrawals; pool configuration
Lending supply	XOXNO Core	2.66%, 6 Oct	Tiny, young market
Stablecoin LP	Aquarius PYUSD/USDC	0.14% (stable pool); 11.74% (concentrated), 6 Oct	Reward-token price; depeg
Stablecoin LP	Aquarius USDC/sUSD	22.82% (concentrated), 6 Oct	sUSD is synthetic and not redeemable
Curated vault	Gami earnUSDC (Upshift)	10.00%, 6 Oct	Curator decisions; withdrawal queue
Vault in an app	DeFindex-based wallets	Blend/K2 rate plus compounded rewards, minus app fee	Extra contract layer; fee
Yield-bearing dollar	Ondo USDY	3.75% APY, 2 Oct	Issuer risk; non-US only
Yield-bearing dollar	Figure YLDS	Floating, set below SOFR	Unsecured issuer debt; via partner apps

USDC yield on Stellar by the numbers (October 2026)

• About $55M of USDC was supplied to Blend V2 pools on 6 October, with $43.5M borrowed, or roughly 79% utilisation (DefiLlama).
• $19.4M sat in DeFindex vaults and $25.0M in Gami's earnUSDC vault on Upshift (DefiLlama).
• The largest USDC stablecoin pool on Aquarius, the PYUSD/USDC stable-swap pool, held $8.07M but paid only 0.14%.
• Stellar DeFi Hub's incentive vaults held $57.5M across XLM, USDC and PYUSD (DefiLlama).
• About 467M USDY exists on Stellar, per Horizon: 461.6M in accounts and 5.9M in contracts.

The pattern: the deep routes pay single digits, and the double-digit rates sit on pools holding a few hundred thousand dollars or less.

How to choose

• You want the simplest route with real depth: lend on Blend, directly or through a wallet that uses DeFindex.
• You want someone else to manage allocation: a curated vault such as earnUSDC, accepting a curator's judgement and a withdrawal queue.
• You will accept volatility in rewards for a higher headline rate: an Aquarius stablecoin pool, and read what the second token actually is.
• You do not want DeFi contract risk at all: a yield-bearing dollar, if you are eligible to hold it.

Lending supply — Blend and XOXNO

Supplying USDC to a lending pool earns the interest borrowers pay, minus the protocol's reserve share. On Stellar, Blend's Fixed pool is where most of that borrowing happens, so it sets the benchmark: 6.69% on 6 October, with a 30-day average of 7.56%, per DefiLlama.

The rate is driven by utilisation. With about 79% of Blend's USDC lent out, borrowers pay enough to keep supply coming, but the same number means only about a fifth of deposits can be withdrawn at any moment. If borrowers rush in, rates rise and withdrawals wait for repayments or liquidations. Blend's community-run YieldBlox pool showed 8.16% on USDC, but on only about $7K of available liquidity. Lending USDC on Blend also earns BLND emissions in pools that pay them, which DeFindex's strategies compound.

XOXNO's Core USDC market paid 2.66% on about $5K of available liquidity; its 30-day average was 0.67%, which shows how much one borrower moves a small market. Its published rate curve makes the mechanics visible: in the mainnet configuration, USDC borrowers pay nothing at zero utilisation, 2.5% at 46%, 5% at 92%, and then up to 25% as the market approaches full use. Suppliers receive the borrow rate times utilisation, minus a 10% reserve factor. At 50% utilisation and a 2.7% borrow rate, that is roughly 1.2% for suppliers. Lending yield is only high when the market is nearly fully borrowed, which is also when withdrawals are hardest. The risks of each venue are covered in the best lending protocols on Stellar and, for Blend specifically, Blend's 2026 incidents.

Stablecoin LP — Aquarius pools

Providing USDC and another dollar token to an Aquarius pool earns a share of swap fees plus any AQUA rewards that ICE voters direct to the pool. The rate depends far more on rewards and pool size than on the stablecoins themselves.

Aquarius's pool API on 6 October showed:

Pool	Type	Liquidity	Fee APY	Reward APY	Total
PYUSD/USDC	Stable-swap	$8.07M	0.03%	0.11%	0.14%
PYUSD/USDC	Concentrated	$276K	0.04%	11.70%	11.74%
USDC/sUSD	Concentrated	$213K	12.94%	9.88%	22.82%
USDC/EURC	Concentrated	$116K	1.88%	5.14%	7.02%
USDY/USDC	Concentrated	$12.9K	4.99%	27.99%	32.98%

Three warnings. First, reward APY is paid in AQUA, so its dollar value moves with AQUA's price and with each week's ICE vote; see ICE voting and bribes. Second, read the other token. sUSD's issuer, synt.tech, describes it in its stellar.toml as "price-pegged to USD but not redeemable or directly asset-backed". The fees are high because traders are paid to hold that risk. USDC/EURC is a currency position, not a dollar one. Third, concentrated pools earn only while the price stays in range; see concentrated liquidity on Aquarius. Auto-compounding vaults, including the Aquarius LP vaults run by WhaleHub, the publisher of this article, reinvest rewards but do not remove any of these risks.

Vaults — DeFindex apps, Upshift and Stellar DeFi Hub

A vault takes your USDC, issues a share token, and deploys the deposits into lending or LP strategies on your behalf. You get convenience and compounding; you add a second layer of contracts and, in curated vaults, a manager's judgement.

DeFindex is infrastructure rather than a destination: wallets and fintech apps embed its vaults, and DeFindex lists Beans, Seevcash, Soroswap, xPortal, Hana Wallet, Meru and Rozo Pay among its partners. Its Blend Autocompound strategy supplies to a Blend pool, claims BLND, swaps it for the underlying on Soroswap and re-supplies it; a K2 strategy does the same on K2 Lend. The app sets a performance fee on the yield, and an optional "Stable APY" product lets an app advertise a fixed rate and keep what the strategies earn above it. The vault contracts were audited by OtterSec in March 2025.

Gami Labs' earnUSDC runs on Upshift's Stellar vault contracts. Upshift says Gami allocates deposits across Stellar protocols such as Blend and Aquarius, that withdrawals are instant only up to the USDC held in the vault, and that the vault has a Halborn audit. DefiLlama lists it at 10.00% with a 30-day average also of 10.00%. A rate that flat is unusual for strategies built on floating lending and LP yields, so ask how it is produced before treating it as a market rate.

Stellar DeFi Hub, run with Sentora, held $57.5M across XLM, USDC and PYUSD vaults on DefiLlama. Its rewards accrue in the deposit asset and are claimed at the end of a vault period, and the app warns that withdrawing early makes the withdrawn amount ineligible for rewards. We could not verify a current USDC rate.

For how vault aggregators compare more broadly, see the best yield aggregators.

Yield-bearing dollars — USDY and YLDS

Instead of lending USDC, you can swap it for a token that pays interest from off-chain assets. The yield comes from Treasuries or the issuer's balance sheet rather than from DeFi borrowers, so smart-contract risk falls away and issuer and eligibility risk take its place.

Ondo's USDY is backed by short-term US Treasuries and bank deposits. It accrues yield through a rising token price, at 3.75% APY on 2 October 2026 according to Ondo, and is offered under Regulation S to non-US individuals and organisations only. Because the price rises, USDY is not a $1 token, which is worth remembering when you use it as collateral or in a pool. XOXNO accepts it at up to 80% LTV.

Figure's YLDS arrived on Stellar on 5 May 2026. It is an SEC-registered, interest-paying face-amount certificate issued by Figure Certificate Company: an unsecured claim on the issuer, with a floating rate set below SOFR. It is aimed at fintechs and neobanks that offer it to their users, rather than at direct wallet-to-wallet DeFi use.

Tokenised Treasury products such as Etherfuse's USTRY and Franklin Templeton's Benji fund sit in the same family; see tokenised money-market funds. One practical warning: Horizon lists many unofficial assets using the codes USDY, YLDS and PYUSD. Check the issuer's home domain (ondo.finance for USDY, for example) before buying.

How these fit together

The routes stack. A DeFindex vault lends on Blend; earnUSDC spreads across Blend and Aquarius; USDY can be posted as collateral on XOXNO or paired with USDC on Aquarius. Stacking adds yield and adds failure points: the 6.69% Blend rate underlies several of the "different" options here, so a Blend problem is not diversified away by holding three products that all route to it.

The takeaway

In October 2026, the honest base rate for USDC on Stellar is the Blend supply rate, in the high single digits. Anything well above it is paying you for a specific extra risk: a reward token, a synthetic partner asset, a curator, or a lock-up. Name that risk before you take the rate.

Sources: DefiLlama protocol and yield APIs, 6 October 2026; Aquarius pool API (amm-api.aqua.network), 6 October 2026; Horizon; synt.tech stellar.toml; docs.defindex.io; upshift.finance; ondo.finance/usdy (2 October 2026); Figure YLDS launch coverage, May 2026.