Cross vs Isolated Margin isn't just a toggle—it's your account's life insurance policy.

Cross margin = your entire balance backs every position. One trade goes nuclear against you? It'll drain way more than you initially risked. Your whole bag becomes collateral.

Isolated margin = firewalls the damage. You lock in exactly how much you're willing to lose per trade. Rest of your stack stays untouched.

Most traders don't blow up from one bad entry. They blow up because they didn't realize their entire account was on the line.

Know your exposure. Protect your downside. Trade like you want to survive.