Leverage risk & liquidation

Leverage is the fastest way to lose money in crypto. That's not a scare line — it's the single most important thing a beginner can know before touching a perp. This lesson is the warning that earns the module its late placement.

How leverage amplifies everything

Leverage multiplies your exposure — and your losses scale with it. The higher the leverage, the smaller the move it takes to wipe you out:

At 100×, a 1% flicker — routine in crypto — erases your entire deposit. The extreme leverage some venues advertise isn't a feature for beginners; it's a countdown.

Liquidation

When the price moves far enough against you that your margin can no longer cover the loss, the exchange liquidates the position: it's force-closed and you lose the margin backing it. Every leveraged position has a liquidation price — know it before you enter, because that's the level where your trade ends.

Margin: isolated vs. cross

• Isolated margin limits the risk to the amount assigned to that one position — a liquidation can't touch the rest of your balance.
• Cross margin shares your whole balance across positions, which can avoid a liquidation but puts everything at risk.

For beginners, isolated margin contains the damage.

Can you lose more than you put in?

On most DEXes, no — you can lose the margin backing a position but not more, because liquidation closes it first. But losing 100% of that margin happens fast, and platform issues (downtime, oracle problems) can occasionally make exits worse than expected.

If you trade perps anyway

• Use low leverage — 2×–5× gives room to breathe; treat 50×–100× as a fast way to get liquidated.
• Set a stop-loss to exit on your terms before liquidation does it for you.
• Account for funding costs on anything held a while (Lesson 43).
• Size small and never risk money you can't afford to lose.

Spot first, leverage later, caution always. Most people who blow up did so by reaching for leverage before they were ready.