Trade WETH.

To trade WETH means buying, selling, pairing, and positioning wrapped ether as an active DeFi asset — not simply holding ETH in a wallet. WETH exists because native ether does not speak the ERC-20 interface that most smart contracts expect, so the moment you want to trade WETH against another token inside a pool, post it as collateral, or open a leveraged position, you need the wrapped version that behaves like any other token on the network. That one compatibility fix is why almost every serious exchange, money market, and perpetuals venue on Ethereum quotes and settles against WETH rather than the native asset.

Why WETH Instead of Native ETH

Native ETH moves as a protocol-level balance rather than a token balance, so a contract built to call the standard transfer and approve functions cannot handle it directly. Wrapping deposits ETH into a contract that mints an equivalent ERC-20 balance one-for-one, and that wrapped balance is what every pool, vault, and lending market is actually built to move.

WETH as the Base Pair

Most Ethereum AMM pools quote everything against WETH the way foreign-exchange desks quote against the dollar, because pairing every token directly against every other token would fragment liquidity into shallow, inefficient pools. A token paired against WETH inherits the deepest route to the rest of the market, which is why liquidity aggregators and Uniswap docs describe WETH pools as the default routing hop for swaps that touch ether at all.

Checking the Canonical Contract

Before you trade WETH on any new venue, confirm the pool or market actually references the canonical token rather than an unrelated contract with a similar name. The real WETH contract is verifiable on Etherscan, and matching that address against what a venue lists is a quick check worth doing once per new platform.

WETH trades in two broad structures. Automated market makers price it continuously against paired assets inside a liquidity pool, while order-book and perpetuals venues let you trade WETH directly against a counterparty at a quoted price, often with leverage. Ethereum.org's DeFi overview covers the mechanics behind both models in more depth than a single page can. Spot traders moving size typically route through AMM pools for the best execution price after checking depth first; traders wanting directional exposure without moving the underlying asset use WETH-margined perpetuals instead.

Venue Type	Common Use	What You're Exposed To
AMM pools (e.g. Uniswap)	Spot swaps, routing, LP supply	Pool price impact, impermanent loss
Lending markets (e.g. Aave)	WETH as collateral or supplied asset	Liquidation risk, interest rate changes
Perpetuals exchanges	Leveraged long/short on WETH price	Funding rates, liquidation on leverage

Supplying WETH into a pool turns a trading position into a market-making one: instead of holding a directional view, you earn a share of every swap fee the pool collects, in proportion to your share of the pool. That income is steady when prices are calm and erodes quickly when they are not, which is the core trade-off anyone who wants to trade WETH through liquidity provision has to accept.

How Liquidity Providers Earn and Lose

Fees accrue continuously as other traders swap through the pool, but the pool's own pricing curve rebalances your WETH and paired asset against each other every time the price moves. You end up holding more of whichever asset fell and less of whichever asset rose — the opposite of what an unhedged holder would want.

Impermanent Loss, in Practice

Impermanent loss is the gap between what your pooled position is worth and what simply holding the same WETH and paired asset separately would be worth. It grows with the size of the price move since you deposited and shrinks back toward zero if the price returns to where you started, which is why it is a paper loss until you withdraw, not a guaranteed one. Checking a pool's historical fee yield against its volatility on a tracker like DefiLlama before supplying gives you a sense of whether the fees have tended to outrun the drawdown.

Posting WETH as collateral lets you borrow against a position you still want to hold, which is how most leveraged WETH trades actually get funded on-chain. You deposit WETH into a money market such as Aave, borrow a stablecoin or another asset against it up to the market's loan-to-value limit, and use the borrowed funds to open a second position, effectively trading WETH with leverage while the original collateral keeps earning any supply interest the market pays. The trade-off is that your collateral is now tied to a loan: if WETH's price falls far enough relative to what you borrowed, the position becomes eligible for liquidation.

Any position where WETH backs a loan or a leveraged trade carries liquidation risk, and understanding how close you are to it matters more than almost any other number on the position.

Reading Your Health Factor

Lending markets express liquidation distance as a health factor or similar ratio, a single number that falls as WETH's price drops relative to what you owe. Keeping that number comfortably above the liquidation threshold, rather than running it close, is what turns a market dip into a manageable drawdown instead of a forced sale.

What Happens at Liquidation

When the threshold is crossed, a portion of your WETH collateral is sold, often at a penalty, to repay the debt and restore the position to a safe ratio. The sale happens automatically and is final, so the only real defense is managing position size and leverage before the price moves, not reacting after it has.

Running a WETH position well is less about the entry and more about the ongoing checks that keep it from becoming a liquidation or an avoidable impermanent-loss drawdown.

• Size the position against your collateral so a normal price swing does not approach the liquidation threshold.
• Pick the venue — AMM pool, lending market, or perpetuals exchange — that matches whether you want fee income, borrowing power, or directional exposure.
• Check pool depth or order-book liquidity before entering, since thin liquidity widens the price impact on both the way in and the way out.
• Monitor your health factor or margin ratio on a regular cadence, not only when the market is already moving.
• Rebalance or add collateral ahead of a liquidation threshold rather than at it, since the forced-sale penalty is avoidable with earlier action.
• Close or reduce the position deliberately when the thesis that opened it no longer holds.

For a trader actively working positions, WETH is simply the form ether takes once it enters DeFi contracts, and the two are interchangeable at any time through wrapping and unwrapping. The practical difference only shows up in where value sits at a given moment: native ETH is what you hold outside contracts, while WETH is what the pools, lending markets, and perpetuals venues described above actually price, pair, and settle in. Traders who move frequently between spot pairs, LP positions, and collateralized loans end up holding WETH for most of that activity simply because that is the form the contracts require.