Cross Margin
A mode where your entire balance backs your positions — deeper protection against liquidation, but total exposure if it fails.
Cross margin uses your whole account balance as collateral for your open positions, automatically drawing on it to keep a losing position from being liquidated. This gives positions a larger buffer and can be efficient for hedged portfolios where a gain in one position offsets a loss in another.
The danger is symmetry: because everything backs everything, a single position going badly wrong can drain the entire account, not just an allocated slice. Cross margin rewards experienced traders managing correlated books and punishes newcomers who don’t realize one bad trade can take the whole balance. The safer default for isolated speculation is isolated margin.