Yearn Finance is the original DeFi yield aggregator. Users deposit a single asset into an ERC-4626 yVault and a configurable strategy fabric automatically routes capital across underlying lending markets, AMMs, and yield primitives to maximise risk-adjusted return.
Deposit USDC, get yvUSDC shares at the current price-per-share. The strategy earns yield that accrues as pending — press Harvest to sweep it, skim the fee, and ratchet pricePerShare up. Your share count never changes; each share just becomes worth more.
Yield accrues in the strategy over a ~30-day window. It is not yet reflected in pricePerShare — it is realised only on harvest.
Each harvest folds net yield back into the vault. Shares stay fixed, so price-per-share only ever steps up — never down.
Mints 10,000 yvUSDC shares at the current price-per-share of 1.0000. Deposit later and you get fewer shares for the same USDC — but each share is already worth more.
The vault routes capital through one strategy at a time. A higher-APY strategy accrues more pending yield per window, so each harvest ratchets pricePerShare faster.
Live signals detected by Sentinel monitors across all five risk classes.
See each alert's affected component, root-cause analysis, and recommended action. Pro members get the full risk breakdown for every protocol.
Manually farming the best DeFi yield is gas-expensive, requires constant rebalancing across protocols, and is operationally out of reach for most retail users. Single-protocol risk concentrates exposure to one contract's exploit and economic model.
Yearn yVaults pool deposits, socialise gas costs, and execute professionally curated and audited yield strategies on the user's behalf. Vaults are ERC-4626 compliant, multi-strategy, and modular — capital can be rebalanced across underlying protocols without user action.
The original DeFi yield aggregator, live since July 2020 with ~6 years of mainnet history. V3's modular ERC-4626 architecture, fair-launched YFI governance token (no VC allocation), and yChad 6-of-9 multisig stewardship combine institutional rigor with credibly neutral governance.
Yearn Finance is a Yield protocol operating on Ethereum, Arbitrum, Optimism, Base, Polygon, Fantom, Katana. Yearn Finance is the original DeFi yield aggregator. Users deposit a single asset into an ERC-4626 yVault and a configurable strategy fabric automatically routes capital across underlying lending markets, AMMs, and yield primitives to maximise risk-adjusted return.
DeFi Sentinel rates Yearn Finance AA with a safety score of 82/100, indicating very low risk. The score reflects five risk dimensions: smart contract & technical risk, economic design & market risk, governance & centralization, sustainability & competitive position, and reputation & social trust. Yearn Finance has 9 audits on record. As with all DeFi protocols, residual risk remains and users should review the full risk breakdown before depositing.
Yearn Finance has a DeFi Sentinel safety score of 82/100 (rating AA), last updated May 21, 2026. The score is computed across smart contract & technical risk (30%), economic design & market risk (25%), governance & centralization (20%), sustainability & competitive position (15%), and reputation & social trust (10%).
Yearn Finance is deployed on Ethereum, Arbitrum, Optimism, Base, Polygon, Fantom, Katana.
Yes. Yearn Finance has 9 audit reports on record from firms including Quantstamp, MixBytes, Trail of Bits. Audit reports and dates are linked under the Resources tab on this page.
