

Yearn Finance was one of the first protocols to automate yield farming by aggregating and rebalancing strategies across multiple DeFi platforms. Its “Vaults” product — which deposits user funds into the highest-yielding strategies and compounds returns automatically — set the standard for DeFi yield aggregators. Many subsequent protocols were inspired by or forked from Yearn’s model.
Aave and Compound are lending/borrowing protocols where users manually deposit and borrow at variable rates. Yearn Finance sits on top of these protocols (and others), automatically routing deposits to the best yield opportunities and compounding returns. Yearn is an aggregation layer, not a base lending protocol — it optimizes across the DeFi landscape rather than operating a single money market.
YFI has a fixed supply of only 36,666 tokens — one of the smallest in DeFi. This extreme scarcity means even modest changes in demand can produce outsized price swings. When DeFi sentiment turns bullish, YFI’s limited float can amplify upward moves; during sell-offs, thin order books can accelerate declines.
Yearn integrates with major DeFi protocols including Aave, Compound, Curve, Maker, and others. Its vaults deploy capital across these platforms based on automated strategies. Yearn also collaborates with projects like Curve (via CRV gauge voting) and has partnerships across the “DeFi alliance” ecosystem. This deep integration means Yearn’s performance is tied to the health and yields of Ethereum DeFi as a whole.
The YFI/EUR price reflects YFI’s USD price adjusted by the live USD/EUR exchange rate. When the euro strengthens against the dollar, YFI appears cheaper in EUR terms (even if USD price is flat). When the euro weakens, YFI costs more in EUR.