By Yield.ly Editorial · Reviewed by Thrive.fi Research · Published 2026-08-25 · Updated Aug 26, 2026, 5:37 AM UTC
Live data snapshot as of Aug 26, 2026, 5:37 AM UTC. Sources: DefiLlama and verified provider feeds. See methodology and data sources.
Neither USDC nor USDT wins every week. The leader depends on chain, protocol borrow demand, incentive programs, and how much of the headline rate is base lending yield versus token rewards. Issuer and reserve risks differ even when APY looks similar. Use live medians and TVL, not a static blog post, before you pick one stablecoin for yield.
As of Aug 26, 2026, 5:37 AM UTC, qualified USDC best APY is 69.73% (DACMLITSTRATEGY (Lagoon) on Arbitrum One) versus USDT at 18.20% (USDT Lending (Euler V2) on Ethereum). Median qualified rates sit at 4.95% for USDC and 3.45% for USDT. USDC leads on top qualified APY in this snapshot.
Metrics below come from the same qualification pipeline as the dashboard. Combined TVL sums qualified rows for each asset; it is not issuer reserve data.
| Metric | USDC | USDT |
|---|---|---|
| Best qualified APY | 69.73% | 18.20% |
| Median qualified APY | 4.95% | 3.45% |
| 30-day median APY | 5.16% | 3.55% |
| Qualified opportunities | 290 | 65 |
| Combined TVL | $9B | $3.1B |
| Best chain (top APY row) | Arbitrum One | Ethereum |
USDC and USDT are both dollar stablecoins, but they do not share identical liquidity footprints on every chain. Borrowers choose the token their strategy needs. Suppliers earn from whoever pays to borrow that token in that market. A 2% gap between USDC and USDT on the same chain often reflects different borrow demand, not a permanent quality ranking.
Traders borrow stablecoins for leverage, basis trades, and cross-exchange workflows. USDT still dominates some legacy venues and OTC flows. USDC leads on several newer L2 deployments and regulated-facing products. When more leverage loops want USDT on Tron-linked workflows or USDC on Base lending, supplier APY follows the busy token.
Read utilization rate and where stablecoin yield comes from to connect borrower behavior to the rate you see.
Ethereum mainnet may show deep USDC and USDT pools on Aave with long history. Base and Arbitrum often skew toward USDC in newer markets. A chain where your preferred token has thin TVL can advertise a high APY that does not fit a large deposit. Compare chain hubs and filter both assets on the dashboard.
For Base-specific USDC context, see best USDC yields on Base. For Arbitrum stablecoin rows, see Arbitrum stablecoin yields.
A higher APY on USDT does not help if utilization is pinned near 100% and you need to exit tomorrow. USDC markets with deeper TVL sometimes trade a lower headline rate for easier withdrawals. Check TVL, 30-day median APY, and utilization on the protocol market page before you switch tokens for yield alone.
See APY vs TVL and APY history for context beyond the snapshot rate.
USDC is issued by Circle with monthly attestations and regulated redemption channels. USDT is issued by Tether with a different reserve disclosure history and banking footprint. Both have survived multiple stress cycles, but depeg severity and recovery paths have not been identical. Yield differences do not remove issuer risk.
Many users hold one stablecoin for operational reasons and only consider switching when the APY gap covers bridge fees, spread, tax friction, and the time out of market. Model those costs before you chase a modest rate edge.
Neither USDC nor USDT wins every week. The metrics table on this page shows best current APY, median rates, and TVL from qualified snapshots. A token that leads today may lag next month when incentives rotate or borrow demand shifts. Compare 30-day medians, not only the top row.
Why DeFi APY changes explains the drivers when leadership flips between assets.
Filter USDC and USDT together on the Yield.ly dashboard. Thrive.fi glossary ↗ defines stablecoin and APY terms if you want parallel vocabulary while you compare.
Side-by-side rows for quick comparison. Open each opportunity for APY history, risk evidence, and verified destinations. See where stablecoin yield comes from for mechanism context.
| Asset | Opportunity | Protocol · Chain | Total APY | Base APY | 30-day median | TVL |
|---|---|---|---|---|---|---|
| USDC | DACMLITSTRATEGY (Lagoon) | Lagoon · Arbitrum One | 69.73% | 69.73% | 64.65% | $441.9K |
| USDC | USDC (Accountable) | Accountable · Ethereum | 37.97% | 25.95% | 37.56% | $3.2M |
| USDC | USDC (Gains Network) | Gains Network · Base | 22.32% | 22.32% | 19.32% | $628.7K |
| USDC | USDC (Isle Finance) | Isle Finance · Hedera | 20.59% | 20.59% | 20.59% | $517.9K |
| USDC | USDC (Ensuro) | Ensuro · Ethereum | 18.82% | 18.82% | 59.38% | $1.1M |
| USDC | USDC (Neutral Trade) | Neutral Trade · Solana | 17.52% | 17.52% | 17.52% | $631.8K |
| USDT | USDT Lending (Euler V2) | Euler V2 · Ethereum | 18.20% | 18.20% | 17.34% | $321.9K |
| USDT | SLNUSDT (Wildcat Protocol) | Wildcat Protocol · Ethereum | 9.50% | 9.50% | 9.50% | $710.7K |
| USDT | CTDEFIUSDT (Concrete) | Concrete · Ethereum | 9.18% | 9.18% | 24.32% | $29.5M |
| USDT | USDT (Zerobase Cedefi) | Zerobase Cedefi · Ethereum | 9.00% | 7.00% | 9.00% | $14.1M |
| USDT | USDT (Zerobase Cedefi) | Zerobase Cedefi · BNB Chain | 8.76% | 6.76% | 8.76% | $18.7M |
| USDT | USDT (Bitway Earn) | Bitway Earn · BNB Chain | 8.00% | 8.00% | 8.00% | $25.9M |
Combined qualified TVL: $9B (USDC) and $3.1B (USDT) in this snapshot.
Tables refresh from qualified dashboard snapshots with timestamps. Sponsored placements never change organic ranking math. Filter by asset, chain, base APY, or observed risk on the dashboard.
Yield.ly is built by Thrive.fi ↗, which publishes DeFi market research ↗ and maintains a crypto glossary ↗ for traders and researchers.
It changes week to week. Compare best qualified APY, median rates, and chain coverage in the live tables above rather than static blog rankings.
Depends on chain, protocol depth, issuer preference, and whether you optimize for base APY or total APY with incentives.
Borrow demand, utilization, incentive campaigns, and which chains host deep markets all differ between Tether and Circle venues.
Model bridge fees, spread, tax friction, and whether the APY gap persists after conversion. A small rate edge may not cover migration costs.
Filter the dashboard to USDT and sort by base APY, total APY, or TVL depending on your priority. The opportunity table lists current qualified rows.
Same approach: use live qualified rows, check 30-day medians, and read observed risk on each opportunity page.
Both can work in deep lending markets, but issuer, reserve, and depeg risks differ. Neither label guarantees safety or durable yield.
This guide is for research and education. Yield rates change, smart-contract risk is real, and nothing here is investment advice. Rates shown on Yield.ly are observed snapshots, not guarantees.
Guides are written by Yield.ly editorial staff and reviewed against live dashboard data and public methodology docs. Sponsored placements never change qualification or ranking logic. See commercial independence.