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What are compounding losses in trading?

In one line: Compounding losses means each loss is taken from a smaller balance, so losses stack up in a way that needs an ever-bigger gain to get back to where you started.

Trading glossary · Updated 2026-10-21

The idea

Compounding usually sounds good. It works on losses too, and there it works against you.

Each loss shrinks the balance. The next gain starts from that smaller number, so it has to be bigger to fill the hole.

A simple example

Start with an account of 100 units.

• Lose 10%: 100 → 90.
• Gain 10%: 90 → 99. Not 100.

Up 10% and down 10% leaves you 1% short.

Now 3 losses of 10% in a row: 100 → 90 → 81 → 72.9. That's down 27.1%.

To get back to 100 from 72.9, you need 100 ÷ 72.9 = 1.372, a 37.2% gain. A math example, not a promise.

The recovery table

The deeper the hole, the faster the climb out grows. Try any number in the loss recovery calculator.

Why it matters

This is the math behind small risk per trade.

• At 1% risk, 10 losses in a row leaves about 90% of the account (0.99 × 0.99 … ten times).
• At 5% risk, the same streak leaves about 60%.

Streaks like that can happen to any method. See how long yours might be with the losing streak calculator. The size of each loss decides whether a streak is a dent or a crater. More in how much to risk per trade.

A common mistake

Sizing up to win it back faster. After a drop, the bigger gain needed feels like a reason to risk more. That makes the next loss bigger too, and the hole deeper. Keep risk per trade fixed, and let a daily loss limit stop bad days early.

Questions