What to Do With Idle ETH
Most ETH sits still, earning nothing. If you want it working, the first question is usually which option pays the most. That is the least useful place to start. The headline rates cluster within a couple of points of each other, and what separates them is the risk profile and source of yield.
Where can you earn yield on idle ETH?
The direct route is running a validator yourself. That means depositing a minimum of 32 ETH, maintaining a machine that stays online, and managing keys that grant access to your funds. You collect consensus and execution rewards with nothing between you and the network, and when you want out, you exit the validator and wait for Ethereum’s withdrawal process.
Most holders use a liquid staking protocol instead. You deposit ETH, the protocol runs the validators, and you get a token representing the position. Lido stETH, ether.fi eETH and Origin's OETH are rebasing, so your balance grows as rewards arrive. Rocket Pool rETH works the other way around: the balance stays fixed and each token comes to be worth more ETH. The wrapped forms, wstETH, weETH and wOETH, are non-rebasing, which is why most DeFi protocols list those instead. Rates across the major protocols are close, and the ETH APY landscape has the current comparison.
Where can you deposit WETH to earn passive yield?
Almost everything past staking runs on WETH, the ERC-20 version of ETH. Wrapping earns nothing by itself and does not change your price exposure.
Supply WETH to Aave and you are a lender, paid whatever borrowers are paying. Morpho works much the same way, either straight into a market or through a vault where a curator allocates to lending markets on your behalf. Deposits to lending markets are generally liquid and can be withdrawn near-instantly, but when borrowing demand runs high, funds may face temporary illiquidity.
AMMs pay for something else entirely. Put WETH and another asset into a Curve pool and you earn trading fees, but the pool quietly rebalances your holdings as prices move.
What are the best ETH vaults for passive income?
What separates vaults is where the yield comes from. A Yearn-style allocator vault spreads deposits across strategies and gives you a share token. A redemption-arbitrage vault is narrower, it acquires redeemable assets trading below what their collateral value, redeems them through the protocol that issued them at 1:1, and earns the difference as yield. That spread widens when markets are volatile and compresses when they are calm, so the yield tracks conditions rather than an advertised number.
Origin ARM is an onchain liquidity engine built on that mechanism. The multi-asset WETH ARM takes WETH and quotes prices for stETH, wstETH, eETH and weETH. The WETH it does not need for inventory goes to the Morpho WETH ARM Vault, so a deposit earns from arbitrage and from lending at the same time. The Origin ARM documentation covers the mechanics.
The WETH ARM Vault trailing 30-day APY is 4.39% as of September 2026.
How do I choose which ETH yield opportunities are best for me?
Before you deposit anywhere, you need to answer these four questions:
- What actually generates the yield?
- What you hold afterwards, and how do you turn it back into ETH?
- Is there a withdrawal delay, and if so, how long?
- What is the risk profile?
| Route | Where the yield comes from | How you get out | Worth checking first |
|---|---|---|---|
| Run a validator | Consensus and execution rewards | Exit the validator, then wait | 32 ETH, uptime, slashing |
| Liquid staking: Lido, ether.fi, Rocket Pool | Validator rewards, less protocol fees | Sell the token, or redeem through the protocol | Rebasing or exchange rate, queue length, market depth |
| Lending: Aave, Morpho | What borrowers pay | Withdraw while the market has spare liquidity | Utilization, collateral, who curates |
| Allocator vault: Yearn-style | Whatever the strategies earn, less fees | Redeem, subject to strategies unwinding | Which strategies, what fees, who can change them |
| AMM or yield market: Curve, Pendle | Trading fees, emissions, yield pricing | Withdraw from the pool or sell at market | Pool composition, depth, maturity dates |
| Redemption arbitrage: Origin ARM | Discounts on liquid staking tokens, plus lending on idle WETH | Two-step request, paid from the buffer or from redemptions | Which assets it quotes, current liquidity |
FAQ
What should I do with idle ETH sitting in my wallet?
Your options are to leave it alone, stake it yourself, hold a liquid staking token, lend it as WETH, put it in an AMM pool, or deposit it in a vault. Most ETH yield options pay within a couple of points of each other, so the decision usually comes down to how the yield is generated and what the risks are behind that yield.
Where can I deposit WETH to earn passive yield?
Aave and Morpho allow you to deposit WETH to earn yield through lending. Yearn-style vaults route ETH through curated strategies, Curve pairs it against another asset to earn trading fees, and Origin’s ARM uses it to buy discounted liquid staking tokens to earn arbitrage yield. Each pays from a different source, so the rates are not comparable until you understand the risks involved.
What are the best ETH vaults for passive income?
There isn't one ETH vault that’s best to earn yield. Any page that names a winner is comparing numbers produced by different risks. Sort vaults by what generates the return first, whether that is lending interest, trading fees, a managed strategy or redemption spreads, then check fees, live liquidity and how withdrawals work before the rate.