LighterPartner offer
Free Premium Access
Eligible new referrals get one week of Premium trading fees rebated, starting at signup. The first $10M of combined maker and taker volume qualifies; rebates are paid on Mondays with a $1 minimum payout. Trades with non-zero integrator fees are excluded. Regional restrictions and program terms apply; rebates are discretionary and the program may change. Core availability is subject to Lighter terms and regional restrictions. Robinhood Chain is a separate product.
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At a glance
- What changed
- weETH, ether.fi's restaked ETH token, joins Lighter's Multi-Asset Margin list, so it can back perpetual positions without first being swapped to USDC.
- Who it affects
- Lighter traders with a Unified Trading Account who hold weETH and want to use it as margin.
- When
- Announced as live on 23 October 2026. No end date was given.
What changed on Lighter
Lighter announced on its official X account on 23 October 2026 that ether.fi's weETH can now be used as collateral to trade perpetuals on the exchange. weETH is ether.fi's liquid restaking token for ETH, so holders can keep that position and still use it to back trades.
This runs through Lighter's Multi-Asset Margin feature. Its docs say users deposit a supported asset into their margin balance, and the asset's value, cut by a haircut, counts toward the account's total margin. That lets a trader open perpetual positions without first converting the token to USDC. The feature only works on accounts with a Unified Trading Account enabled.
How much margin weETH gives you
Lighter sets weETH's loan-to-value at 70%. In plain terms, 1 weETH worth $3,000 adds $2,100 of buying power to the account. USDC, the base collateral, still counts at 100%.
There are also caps. One account can post up to 800 weETH as margin, and the limit across all Lighter users is 1,000 weETH, so the pool can fill up. Lighter publishes the live parameters through its assetDetails API, and they can change.
What happens if the trade goes wrong
Lighter checks the whole account's health in one place. For that check, weETH counts at its 85% liquidation threshold. If the account drops below its maintenance margin, the docs say, Lighter can liquidate perpetual positions and the weETH itself in the same process, selling the collateral through the spot order book.
When weETH is sold this way, Lighter can charge a liquidation fee of up to 2%. Its 95% liquidation factor sets the floor: the user gets at least 95% of the token's index price for each unit sold. That means a falling ETH price hits a weETH-backed account twice, through the position and through the collateral.
LighterPartner offer
Free Premium Access
Eligible new referrals get one week of Premium trading fees rebated, starting at signup. The first $10M of combined maker and taker volume qualifies; rebates are paid on Mondays with a $1 minimum payout. Trades with non-zero integrator fees are excluded. Regional restrictions and program terms apply; rebates are discretionary and the program may change. Core availability is subject to Lighter terms and regional restrictions. Robinhood Chain is a separate product.
Affiliate link. We may earn a commission, at no extra cost to you.
Conditions
The code and partner link have no expiry. Campaign dates, benefits and eligibility are separate and may change. Check the provider’s current terms before signing up.
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