A 33% yearly return sounds incredible — especially when your savings account pays almost nothing. But before you move your funds, it's worth understanding what's actually generating that number.

What's Behind the Number

Take a real example from the comparison data: a USDC-CBBTC pool on Uniswap v3 (Ethereum) currently showing 33.6% APY with a TVL of $3.83 million. APY stands for Annual Percentage Yield — the estimated yearly return if current conditions hold. TVL, or Total Value Locked, is the total amount of money sitting in a pool; it's a rough signal of how large and battle-tested that pool is.

So what could drive a yield this high? A few things — none of them guaranteed:

Trading fees. Uniswap earns fees every time someone swaps tokens through a pool. A concentrated, actively traded pair can generate real fee income. That part is legitimate.

Reward-token emissions. Some protocols boost APY by handing out their own governance tokens as extra rewards. These tokens can lose value fast, quietly eroding your actual return even while the APY figure looks healthy.

Low liquidity. A $3.83M TVL is relatively small. Smaller pools can show high APYs simply because fewer people are sharing the fees — but they're also less tested, more volatile, and easier to drain.

The Risks a Number Can't Show You

This particular pool pairs USDC (a stablecoin pegged to the US dollar) with CBBTC (a wrapped Bitcoin). That mix introduces impermanent loss — a situation where the value of your deposited tokens shifts relative to each other, leaving you with less than if you'd just held them. The bigger Bitcoin moves, the bigger the potential loss.

There's also smart-contract risk: any pool can contain a bug. A larger TVL doesn't guarantee safety, but a small pool has had fewer eyes on it and less time to prove itself.

Finally, the APY you see today reflects recent trading activity. If volume drops tomorrow, so does your yield.

Before You Trust Any APY

Check whether the yield comes from real fees or inflated token rewards. Look at how long the pool has existed. Ask yourself whether you understand both assets in the pair.

The comparison table lets you see multiple pools side by side — so you can weigh APY against TVL and make a more informed question, not a rushed decision.