Trading Academy · Module 1 — Why slow wins · Lesson 1/4
The arithmetic of losses
Lose 30% of your account and you need 43% — not 30% — just to get back to even. That asymmetry is not a slogan; it is division. It is also the single most important piece of arithmetic in trading, and every rule in this academy exists because of it.
Ask a new trader what gain undoes a 30% loss and most will say 30%. It isn't, because after the loss you are working from a smaller account: the road back is longer than the fall. The whole relationship fits in one line:
required gain = drawdown ÷ (1 − drawdown)
| You lose… | You need… | What that feels like |
|---|---|---|
| 10% | +11% | an inconvenience |
| 20% | +25% | a bad stretch you can absorb |
| 30% | +43% | months of disciplined work |
| 50% | +100% | you must now double your account |
| 70% | +233% | most traders never come back from here |
| 90% | +900% | a 10× — effectively starting over |
Look at the shape, not the numbers. Losses under roughly 20% sit on the flat part: annoying, recoverable, survivable many times over. Past 50%, the curve turns vertical — each extra percent lost adds many percent to the bill. The market does not care that this feels unfair. Division does not negotiate.
Now connect it to leverage. At 20× leverage, a 5% move against you does not put you 5% down — it wipes the position's entire margin. Major cryptocurrencies routinely move several percent in an ordinary day, on no news at all. A 20× position rarely loses to bad analysis; it loses to a Tuesday.
This is why "slow" is not a temperament choice on this site — it is the strategy. If you never take the big hit, you never owe the vertical part of the curve. Everything else in this academy — position sizing, portfolio heat, correlation — is machinery for staying on the flat part.
Try the numbers yourself with the free drawdown & recovery calculator: enter any loss, see the bill, and see how long repayment takes at a monthly pace you choose.
Full lesson
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