How to Compare On-Chain Stablecoin Yields? Pendle vs Aave vs Compound
The core difference lies in the certainty of returns: Aave and Compound offer floating rates that change every minute with market supply and demand; Pendle allows you to lock in a fixed rate until maturity, provided you're willing to have your funds time-locked. Currently, Aave's USDC supply rates are around 3–7%, Compound III USDC around 3–6%, and Pendle's PT fixed-rate products around 5–11%.
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1. Start with Aave: The Floating Rate Benchmark
What to do: First, check Aave's current USDC/USDT supply rates. Aave is the largest liquidity pool in DeFi lending, so its rates are often treated as the benchmark for the whole market.
How to do it:
Open aave.com and go to the Markets page (or directly to app.aave.com).
Check the "Supply APY" data for stablecoins like USDC, USDT, and DAI.
Pay attention to the "Utilization Rate" — the higher the utilization, the higher the deposit rate, but also the tighter the withdrawal liquidity.
When you're done: Record the current supply APY for USDC on Aave, and understand that this rate is floating, changing every second with borrowing demand.
In December 2025, Aave concluded a four-year investigation by the U.S. SEC, eliminating a major regulatory uncertainty. In 2026, Aave's USDC supply rates typically fluctuate between 3% and 7%, with rates on Base usually 1–2 percentage points higher than on Ethereum mainnet.
2. Look at Compound: A More Conservative Floating Rate Option
What to do: Compare Compound's rates. It's the same type as Aave (floating rate), but with a more conservative strategy.
How to do it:
Go to Compound's official site or use DeFi Llama to check USDC market data for Compound III (Comet).
Check the supply APY for USDC.
Note that Compound III uses a single-asset pool model (each market supports only one type of collateral — for instance, the USDC pool only accepts USDC). Its structure is simpler than Aave's, theoretically offering security advantages, but yields are usually slightly lower.
When you're done: Record Compound III's USDC supply APY and compare it with Aave's data.
As of Q1 2026, Compound III's USDC supply APY on Ethereum mainnet is around 3.8%, fluctuating within a 3–6% range. Compound's current TVL is about $2 billion, with a strategy leaning toward institutional-grade reliability rather than aggressive growth.
3. Look at Pendle: Splitting Fixed Income (PT) and Floating Yield (YT)
What to do: Understand how Pendle's PT (Principal Token) provides fixed income — this is the fundamental difference from Aave/Compound.
How to do it:
Open the Pendle App (app.pendle.finance) and go to the Markets page.
Look for stablecoin-related PT markets (e.g., PT-USDai, PT-sUSDe, etc.).
Key data point: Implied APY — this is the fixed yield you'll earn if you buy PT and hold it until maturity.
Compare maturity dates: Pendle markets have explicit maturity dates (e.g., 30 days, 90 days, 180 days, or longer). Generally, the longer the term, the higher the locked rate.
When you're done: Find 1–2 stablecoin PT markets, and note down their implied APY and maturity dates.
Pendle's mechanics: It takes a yield-bearing asset (like Aave's aUSDC) and splits it into PT (principal) and YT (yield). PT is bought at a discount; at maturity, it can be redeemed 1:1 for the underlying asset. The discount is your fixed return. As of 2026, Pendle PT markets typically offer fixed APYs between 5% and 11%, backed by assets like Aave USDC, sUSDe, etc.
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4. Comparing the Three: Choose Based on Your Needs
What to do: Use the data from all three protocols to decide which fits your needs.
How to do it:
| Comparison Dimension | Aave v3 | Compound III | Pendle (PT Fixed Income) |
|---|---|---|---|
| Yield Type | Floating (variable) | Floating (variable) | Fixed (held to maturity) |
| Typical Current APY | 3–7% (USDC) | 3–6% (USDC) | 5–11% (stablecoin PT) |
| Liquidity Flexibility | Withdraw anytime | Withdraw anytime | Can exit before maturity by selling PT, but subject to price fluctuation risk |
| Risk Characteristics | Lending market risk, utilization rate volatility | Same as left, simpler structure | Maturity liquidity risk, market spread risk |
Selection advice:
Don't want to lock funds, need instant access: Choose Aave or Compound and accept the rate fluctuations.
Willing to lock funds for 30–180 days and want predictable returns: Pendle PT.
Looking for the highest yield and can tolerate market volatility: Aave may spike above 7% when utilization is high, but it's unstable; Pendle's ceiling is higher but requires locking.
When you're done: Based on your capital usage plan (whether you need to withdraw anytime) and risk tolerance, you've identified your preferred protocol.
Common pitfalls:
Mistaking Pendle's implied APY for a floating yield: Pendle has both PT (fixed) and YT (floating). If you see a pool with an APY over 20% on Pendle, it's very likely YT (a bet that future yields will rise), not PT's fixed rate.
Ignoring the maturity date: Pendle PT has a maturity date. If you sell before maturity, you may suffer a discount loss due to insufficient market liquidity.
Looking only at APY, not TVL: DefiLlama data shows that Pendle pools have vastly different TVLs — the USDAI pool is around $50 million, while the APYUSD pool is around $7 million. Pools with very low TVL may have larger slippage when entering or exiting.
Risk reminders:
Pendle's maturity liquidity risk: Pendle PT can only be redeemed 1:1 after maturity. If you urgently need cash before maturity, you'll have to sell PT on the secondary market, possibly at a price lower than expected.
Aave/Compound rates will change: 3–7% is the typical range in 2026, but rates can plummet instantly during extreme market volatility.
Stablecoin risk itself: Regardless of the protocol, the yield is denominated in stablecoins. If the stablecoin itself depegs (e.g., USDe, DAI, etc.), all your returns could be wiped out.
How to confirm you've correctly completed the comparison?
Go to DefiLlama's "Yield" page and check the current stablecoin yields for Aave, Compound, and Pendle. If you can determine which protocol suits your capital usage cycle based on the comparison table above, you've grasped the comparison framework. The next step is to make a small test deposit on the corresponding app — confirm you can successfully deposit and view your yield records, then decide whether to commit larger capital.
