Comparison · Non-custodial

Isolated vs Cross Margin: Which One Should You Trade On

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What each mode puts at risk when a single position goes wrong

The margin mode toggle in your order form controls how much of your account capital can be lost to a single position’s liquidation.

Isolated margin locks a specific amount of capital to one position. If the position moves against you and hits liquidation, you lose only the capital you allocated to that trade. The rest of your account balance — including funds for other positions and unallocated cash — remains completely untouched. This means your maximum loss on any single trade is capped at the margin you assign to it, no matter how far the price moves. On Trending, you can open an isolated position with as little as $20, so your first trade does not need to put a large amount of capital at risk.

Cross margin pools all available capital in your account across every position you set to cross margin. Isolated positions are not part of this shared pool, and their allocated capital remains locked and separate. When a cross-margin position moves against you, the exchange automatically pulls additional margin from this shared pool to cover unrealized losses and avoid liquidation. If the position continues to move against you until the entire shared pool (your account’s free equity plus unrealized gains from other cross positions) is exhausted, you can lose 100% of the capital allocated to cross-margin trading, even if only one position was unprofitable. Winning cross positions can add to the shared pool, but a single large loss can wipe out all gains from cross positions and any unallocated cash in your account.

The table below summarizes core differences between the two modes:

Why cross margin is safer per-position and more dangerous per-account

The shared margin pool that defines cross margin creates a direct tradeoff between per-position resilience and total account risk.

On a per-position basis, cross margin is safer because it gives each cross position access to a larger buffer against volatility. For example, if a position’s initial margin makes up only a small share of your total account balance, a sharp but temporary price wick against your position is far less likely to trigger liquidation than it would be with an isolated position using only that initial margin. This can be useful for trades where you expect high short-term noise but have conviction in the medium-term direction, as it reduces the chance of being stopped out by a temporary move that reverses quickly.

On a per-account basis, cross margin is more dangerous because there is no per-trade limit on losses for cross positions. A single cross-margin trade that moves far enough against you will keep drawing margin from the shared pool until there is no capital left, resulting in a total loss of all funds in the cross-margin pool. If you hold a mix of isolated and cross-margin positions, your isolated positions remain untouched, but all unallocated cash and capital tied to other cross positions can be consumed. This risk is amplified when you hold multiple cross-margin positions at once: if several positions move against you simultaneously, they all drain the same pool, and a liquidation in one can accelerate losses across the rest. Even if most of your cross positions are profitable, one large losing position can erase all of those gains and your unallocated principal.

Neither margin mode eliminates the risk of liquidation entirely. Both modes involve significant risk, especially in highly volatile markets where prices can move rapidly in either direction.

How margin mode changes where the liquidation price sits

Liquidation triggers when the unrealized loss on a position equals the total margin available to support it, minus applicable fees. The margin mode directly determines how much capital counts as "available" for this calculation, which moves the liquidation price relative to your entry price.

For isolated margin positions, the available margin is only the capital you explicitly allocated to that position. This means your liquidation price is fixed at the time you open the position, and will only change if you manually add or remove margin from that specific trade. The performance of your other positions, the amount of free cash in your account, and deposits or withdrawals will not affect the liquidation price of an isolated position.

For cross margin positions, the available margin is the total equity in your cross-margin pool: free unallocated cash, plus unrealized gains from other cross-margin positions, minus unrealized losses from other cross-margin positions. This makes the initial liquidation price further from your entry price than it would be for an isolated position with the same initial margin, because the full pool acts as a buffer. However, the liquidation price is not fixed: it shifts constantly as your other cross positions gain or lose value, or as you move funds in or out of your account. If another cross-margin position takes a large loss, the shared pool shrinks, and the liquidation price for all your cross positions moves closer to their current market prices.

On Trending, your liquidation price is displayed in the order form before you confirm the trade, regardless of which margin mode you select. This lets you see exactly how far the price can move against you before liquidation triggers, before you commit any capital.

A plain rule for picking one while learning

The default rule for new perpetual futures traders is straightforward: use isolated margin for every trade until you can consistently calculate and track the total risk of all your open positions across your entire account.

Isolated margin removes the most catastrophic risk of early trading: losing a large share of your account balance on a single bad trade or unexpected volatility event. Because each trade’s loss is capped at its allocated margin, you can size each position to match exactly how much you are willing to lose on that specific idea, without worrying that a surprise move will wipe out your whole deposit. On Trending, you can start with an isolated position of $20, so you can practice trading with a small, controlled amount of risk while you learn how margin and liquidation work. If you want to test trading with an even smaller amount of capital, a spot exchange or a platform with a lower minimum position size may be a better fit.

Cross margin is only appropriate once you have a formal system for managing total account risk, and you actively monitor your positions during trading hours. Experienced traders may use it for capital efficiency when running multiple correlated positions, or for strategies where they want to avoid being liquidated by short-term noise. Even then, many experienced traders switch back to isolated margin for high-volatility assets or speculative trades where they want to strictly cap downside.

If you are ever unsure which mode to use, pick isolated. The cost of being wrong with cross margin (losing all capital in your cross-margin pool) is far higher than the cost of being wrong with isolated margin (a single position’s allocated margin, which you control).

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