Yield farming is what happens when DeFi gets loud. Screenshots of four-digit APYs, new tokens every week, influencers calling it “passive income.” I tried it early, made a little, lost a little more, and spent weeks untangling what actually happened. Here’s the map.
What you’re usually doing
Most farms pay you to provide liquidity — deposit two tokens into a pool so other people can swap between them. You earn a cut of trading fees plus, often, bonus rewards in a governance token the protocol prints to attract deposits.
That bonus token is why the APY looks insane. You’re being paid partly in an asset that only has value if other people keep showing up to farm it too. When they stop, the number on screen collapses.
Impermanent loss (the name that lies)
If you pool ETH and USDC and ETH moons, your position rebalances as traders swap — you end up with more USDC and less ETH than if you’d just held. The “loss” is impermanent only if prices return to where they started. If they don’t, it’s very permanent.
Farming rewards can outpace IL. They often don’t, especially after the reward token dumps.
High APY is a marketing budget, not a promise. Someone is paying you to take risk they don’t want on their books.
The other ways it ends badly
Smart contract bugs drain pools. Anonymous teams rug. Complicated “auto-compounders” hide leverage you didn’t know you signed up for. Gas fees on small positions eat the rewards entirely.
The veterans treat farming like short-term tactical work: defined size, defined exit, skepticism toward anything that needs a new wallet connection every day.
High risk means you should assume total loss is on the table — not because every farm fails, but because enough do that “it won’t happen to me” is the wrong prior. If you can’t explain impermanent loss with a straight face, if you don’t know who wrote the contract, if the APY requires a calculator with an exponent key — you’re the liquidity someone else is exiting into.
I’m not here to moralize. Some people farm carefully and do fine. I wasn’t one of them at the start. Understand the machine before you feed it.