APY in Crypto: What it Means and Where to Find the Best Rates

APY stands for annual percentage yield, and it measures how much a deposit actually earns over a year once compounding is included. That's the number that matters. The other figure you'll see everywhere is APR, annual percentage rate, which tells you the simple interest rate before compounding. On a $10,000 deposit at 10%, the difference between the two resolves to about $47 after one year with daily compounding. Over multiple years, it compounds substantially further.

In crypto, APY appears on staking rewards, lending protocols, liquidity pools, and stablecoin yield products. The rates on offer in DeFi dwarf what any savings account pays, and they sit on the same risk spectrum: higher yield means more risk somewhere in the stack.

APY is the effective annual return on a deposit after compounding. The formula is:

APY = (1 + r/n)^n - 1

Where r is the nominal annual interest rate and n is the number of compounding periods per year. With daily compounding (n = 365) at 10% APR, the effective annual yield works out to 10.52%. The gap between the two rates widens as the nominal rate increases: at 50% APR with daily compounding, the actual annual return reaches 64.8%.

DeFi protocols typically express their rates this way because rewards are auto-compounded continuously or daily. When you see a lending rate on Aave or a stablecoin pool rate on Morpho, you're usually looking at APY already.

The core difference is whether compounding is included.

APR is the simple interest rate for the period. The compounded figure includes reinvesting earnings. If a lending protocol advertises 10% APR and auto-compounds your interest daily, you'll earn 10.52% on your principal over the year. That difference seems small at low rates, but it matters.

A concrete APR example: $10,000 at 10% APR earns exactly $1,000 after one year with no compounding. The same principal at 10% with daily compounding earns $1,052. At higher rates the gap is more pronounced. $10,000 at 50% with daily compounding earns $6,480 versus $5,000 at simple interest.

In yield estimation formula terms, the key variable is n, the compounding frequency. Continuously compounding protocols use the formula A = Pe^(rt), which gives marginally higher returns than daily compounding at the same rate. In practice, most DeFi protocols compound per block or per epoch, which is close enough to continuous that the difference is negligible.

When comparing products: always look for the compounded figure, not the nominal rate. Platforms quoting APR for products that auto-compound are understating the actual return.

Coinbase APY on USDC sits around 4-5%, which looks competitive until you compare it to DeFi alternatives. The difference is that Coinbase takes a spread between the rate they earn from borrowers and what they pass to you. Aave and Morpho pass the full borrow demand directly to depositors, which is why their rates tend to run higher.

aggregates over 100 yield pools across 15+ protocols and surfaces the best available rate for each asset in one interface, with numbers pulled live rather than estimated.

Stablecoins are the primary vehicle for earning yield in DeFi because they remove price exposure from the equation. You deposit $1 of USDC and withdraw approximately $1 of USDC plus the earned return, regardless of what ETH or SOL did in the interim.

Stablecoin yield on protocols like Aave and Morpho comes from borrowers paying interest to use the capital. When demand to borrow USDC is high, lender rates rise. When it falls, rates compress. This is why coinbase APY is more stable (they smooth it) while DeFi stablecoin rates fluctuate: sometimes 3%, sometimes 12%, depending on market conditions.

For USDT, Aave v3 and Compound v3 are the deepest markets. For DAI, the DAI Savings Rate via Spark Protocol sets a floor, with DeFi lending typically paying above it. Tether yield via USDT on DeFi tracks closely with USDC rates because arbitrage keeps them aligned.

To earn on stablecoins, you need a self-custodied wallet, the stablecoin itself, and a small amount of ETH for gas. Jumper Earn lets you browse live stablecoin rates across all supported protocols before depositing.

The process has three steps.

Connect your wallet to

. Browse the yield pools sorted by current return. You'll see rates across Aave, Morpho, Compound, Lido, and more, filtered by asset and chain.

Select the pool you want. The deposit transaction takes your tokens, deposits them into the underlying protocol, and returns a yield-bearing receipt token or shares representing your position.

Rewards accrue automatically. You don't need to claim periodically on most lending protocols: your balance grows with each block.

The practical advantage of aggregating across protocols is that the best stablecoin rate on any given day might be on Aave, Morpho, or a smaller protocol. Checking them manually requires opening five tabs and trusting that the rates are current. Jumper does that comparison in one place.

The advertised rate is not what you'll earn if any of the following happen.

Smart contract risk affects every DeFi protocol. Aave and Compound have years of audits and combined TVL in the billions, but no audit fully eliminates the possibility of an exploit. Morpho, which routes through Aave and Compound's liquidity, adds another layer of smart contract exposure.

Variable rates are the rule, not the exception. DeFi yields move with borrower demand. A stablecoin pool paying 8% this week might pay 3% next month. The figure you see when you deposit is not guaranteed for any duration.

High yields advertised on newer or less-audited protocols typically reflect one of three things: the protocol is paying out in a governance token that may depreciate, there's genuine borrow demand that could compress, or the protocol carries elevated smart contract risk. The correlation between advertised APY and actual risk in DeFi is not perfect, but it's real.

For a broader look at how yield aggregators work and the risk frameworks around them, the

covers the mechanics in detail.