yield farming
Yield farming is the practice of actively moving capital around DeFi to harvest the highest possible return, the way a farmer rotates fields to maximize the crop. A yield farmer might supply assets to a lending pool to earn interest, deposit into an AMM to earn trading fees, then stake the resulting liquidity-provider tokens into yet another contract to earn extra token rewards — stacking three or four income streams on top of the same underlying capital. This stacking is only possible because DeFi protocols are composable, plugging into one another like money Lego.
The returns advertised as annual percentage yield (APY) typically blend several sources: organic yield (real interest and swap fees actually paid by borrowers and traders) and incentive yield (governance tokens a protocol emits to attract capital). The distinction matters enormously. Organic 'real yield' is sustainable because someone is genuinely paying for a service; incentive yield is often inflationary subsidy that evaporates the moment emissions stop or the reward token's price falls. Farmers who chase only the headline APY frequently find the printed token sells off faster than it accrues.
Yield farming concentrates several risks at once. Smart-contract risk multiplies with every additional protocol you stack. Impermanent loss eats into AMM-based strategies. The reward token can crash. And 'mercenary capital' — funds that arrive only for emissions and flee instantly when a better farm appears — makes high yields fragile and short-lived. Sophisticated farming therefore looks less like passive saving and more like active, leveraged portfolio management, with auto-compounding vaults and strategy managers automating the rotation and the gas-heavy harvesting.
Always separate the APY into its real and emitted parts. A '120% APY' that is mostly a freshly printed governance token is a promise denominated in something whose price you are simultaneously dumping — the sustainable number is the organic fee-and-interest yield underneath.