Liquidation is the forced closure of your position when the margin allocated to it can no longer cover the maintenance margin requirement. It is automatic, irreversible, and costs you most or all of the margin backing that position.
As the market moves against your position, your unrealized loss grows and your effective margin shrinks. The moment it drops below the maintenance margin floor, your position is liquidated. On isolated margin, the default, each position is judged on its own.
On cross margin your positions share your perps cash balance as collateral, so a loss on one position can move the liquidation price of another. Cross margin is explained in https://help.fomo.family/en/articles/17983871-cross-margin-on-perps.
What happens when it triggers
When liquidation triggers, the protocol first tries to close your position on the order book at the best price available. If it closes there, any collateral left after covering the loss stays with you.
If the market does not have enough liquidity to absorb the close, a backstop process takes over the position, and in that case the maintenance margin is not returned. On isolated margin, only that specific position and its allocated margin are affected.
On isolated margin your other positions and the rest of your perps cash balance are untouched. On cross margin, positions share collateral, so more of your perps cash balance than the opening margin can be liquidated. Either way, the funds lost to the liquidation cannot be recovered by fomo or anyone else.
Liquidation uses the mark price
Your liquidation triggers off the mark price, not the last trade price you see on the chart. The mark price is the protocol's official reference price for an asset, calculated by combining the oracle price (a composite across major external exchanges) with local trading activity on the protocol.
It exists so a brief, isolated spike on one exchange cannot push your position into liquidation on its own. That is also why your position can liquidate when the chart shows a different number, or survive a brief chart spike that the mark price did not reflect.
The liquidation price is an estimate
The estimated liquidation price shown in the app is exactly that, an estimate. On an isolated position it can shift as funding payments come out of your margin or as you add or remove margin. On cross margin it also moves with losses on your other positions and with cash you transfer out of your perps balance.
Staying away from liquidation
A stop loss set inside your liquidation price closes the position automatically before liquidation is reached. The app warns you if a stop sits at or beyond the liquidation price, because that stop would never fire. Using lower leverage moves the liquidation price further from your entry to begin with.
Perpetuals ("Perps") are provided by third-party protocols and are not available to U.S. Persons (citizens, residents, or anyone located in the U.S.). Do not attempt to access perps from within the United States.
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