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Drawdown: the number that decides whether you are still here next year

3 min read Stralines
  • #education
  • #risk-management
  • #drawdown

Ask people about a strategy and they will tell you what it made. Ask professionals and they will ask what it lost on the way. That second number has a name, drawdown, and it quietly decides who is still participating a year from now.

What drawdown is

Drawdown is the fall from a peak to the low that follows it, as a percentage of the peak. If an account reaches 100, slides to 70, and later climbs back, the drawdown was 30%.

The largest one over a period is the maximum drawdown. It answers a blunt question: what was the worst stretch you would have had to sit through?

The recovery math is lopsided

Losses and gains are not symmetrical, and this is the part most people underestimate.

You loseYou need this gain just to get back
10%11%
20%25%
30%43%
50%100%
70%233%
90%900%

A 10% dip is an inconvenience. A 50% loss means you must double what is left merely to stand where you started. Past roughly 30%, the climb back gets steep fast, and every extra point of loss costs more than the last.

This is arithmetic, not opinion, and it holds for any asset and any method.

Why people misjudge their own limit

On paper, it is easy to say you could tolerate a 30% drawdown. In practice, people often abandon a plan well before the number they named, and usually at the worst possible moment: near the low, just before the recovery they were waiting for.

The gap is not a character flaw. A drawdown on a chart is a shape. A drawdown in a real account is weeks of opening an app and seeing less money than yesterday. The two feel nothing alike, and a plan that ignores this will be abandoned.

The honest way to find your limit is to assume it is lower than you think.

Decide the limit before the market does

A drawdown limit only works if it is set in advance and written down. Three decisions make it concrete:

  1. Per-position loss. How much of the account can one position lose before it is closed? Many disciplined approaches keep this at a small single-digit percentage or less.
  2. Per-day or per-week loss. A cap after which nothing new is opened until the next period. It exists to interrupt a bad streak before it compounds.
  3. Total drawdown. The level at which everything stops and the plan itself is reviewed, not the next trade.

None of these improve results. They bound the damage, which is a different and more achievable goal.

Reading drawdown in someone else’s numbers

When you look at any published track record, from anyone:

  • Find the maximum drawdown first, before the headline figure. If it is missing, that is information.
  • Ask how long the recovery took. A 25% drawdown that lasted three weeks and one that lasted fourteen months are different experiences.
  • Check the sample. A drawdown measured over a calm six months says little about a rough year.
  • Remember it is a floor, not a ceiling. The worst drawdown on record is only the worst so far.

What this does not promise

A drawdown limit does not make any approach safe, and it cannot prevent a gap: a price that jumps past your level without trading at it. Crypto markets have fallen by more than half, more than once, and some assets never recovered. Limits reduce how much a bad period costs. They do not remove bad periods.

If a term here was new, the glossary defines it in plain language, and the replay lesson lets you watch a schedule move through two years of real prices, dips included.


Educational content only. Stralines Labs Private Limited is a software company. Nothing here is investment advice. Crypto markets are highly volatile and trading can be risky; past prices do not predict future results.

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Plain-language lessons on risk, position sizing and reading a replay honestly. Education only, never advice, and never a tip.

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