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Max Drawdown Explained: The Worst Drop You've Lived Through

Max drawdown is the largest fall in your net worth from a previous peak to a later low, as a percentage. Learn what it means, how Turbobulls calculates it, and how to use it to gauge your real risk tolerance.
Max Drawdown Explained: The Worst Drop You've Lived Through
Your net worth is up nicely this year. But how far did it fall along the way - and could you have stayed calm through it? Max drawdown is the one number that measures the deepest dip you actually lived through.
Averages and end-of-year returns hide the scary part: the moments in between. A portfolio that ends up +20% might have dropped 40% on the way there. Max drawdown is the largest peak-to-trough fall your net worth took - the worst it ever felt, not where it ended up.
Built for every reader. This works whether you're new to investing or a veteran. Anything marked For the math curious is optional - skip the formulas if you like. The rest is plain English.

The One-Sentence Definition

Max drawdown asks: from any previous high point, what was the biggest percentage fall before a new high was reached?

Smaller is calmer. A 10% max drawdown means your net worth never fell more than a tenth from a peak. A 45% max drawdown means it once nearly halved.

Max drawdown is tracked automatically in Turbobulls from your full history. See it on your dashboard →

The Intuition: Peak to Trough

Picture your net worth as a line on a chart that generally rises but wobbles. Max drawdown finds the tallest peak, then the lowest point that came after it before the line climbed to a new high, and measures the drop between them.

Small drawdown

Your net worth dips a little and recovers quickly. Easy to sit through - you barely noticed. Common for cash-heavy or diversified holdings.

Large drawdown

Your net worth falls a long way and stays down for a while. Emotionally hard - this is where investors panic-sell at the bottom. Common with concentrated or volatile holdings.
Max drawdown is a gut-check on downside: if you lived through a drop this size once, could you do it again without selling in a panic? The honest answer shapes how much risk you should actually carry.

What the Net Worth Badge Means

Inside Turbobulls, max drawdown carries the Net worth badge. That means it measures your whole financial picture, not just your investments:

  • Your invested positions (stocks, ETFs, funds, crypto)
  • Your wallet cash and savings
  • Your broker cash
  • Minus your debt

Why net worth and not just the portfolio? Because a drawdown is about the total value you watched go down. If you sold stocks and moved the money to cash, your portfolio value technically dropped to zero - but your net worth didn't move, and you didn't experience a loss. Measuring net worth keeps the number honest: it only counts real dips in what you're worth.

Other Net worth metrics include Wealth velocity, Growth rate (CAGR), and Momentum. They all describe the trajectory of your total wealth over time.

How to Read the Number

Max drawdownWhat it typically means
0% - 10%Very calm. Cash-heavy, diversified, or a short, quiet period.
10% - 20%Normal for a balanced portfolio in an ordinary year.
20% - 35%A real correction. Roughly what broad stock markets do in a bad year.
35% - 50%A major bear market. The 2008 and 2020 crashes were in this range.
> 50%Severe. Concentrated bets, leverage, or a crypto-heavy mix.

There is no "good" or "bad" in the abstract - it depends on your temperament and time horizon. The point is to know your number before the next drop, so it doesn't surprise you.

Know Your Worst Drop Before It Happens Again

Turbobulls tracks your max drawdown automatically across your entire history, so you can size your risk to what you can actually stomach.
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How Turbobulls Calculates Your Max Drawdown

In plain words: Turbobulls walks through your net worth over time, remembers the highest point it has seen so far, and records the biggest fall from that high. The largest such fall over your selected range is your max drawdown.

For the math curious
The algorithm is a single pass over your net worth series:

Max Drawdown = max over time of ( running peak − value ) / running peak

1

Track the running peak. As you move forward in time, keep the highest net worth seen so far.

2

Measure each dip. At every point, compute how far below the running peak you are, as a fraction of that peak.

3

Keep the worst. The largest dip across the whole range is your max drawdown, shown as a positive percentage.

The figure is capped at 100% - you cannot lose more than everything. (If debt pushes your net worth below zero the raw math would exceed 100%, so it is clamped.)
Max drawdown needs at least two data points in your range to mean anything - a brand-new workspace shows N/A until there is some history to measure a dip against.

Drawdown vs Volatility vs Return

These three answer different questions - do not confuse them:

Max drawdown = worst dip
The single deepest fall you experienced. A path metric - it cares about the worst moment, not the average.
Return = where you ended
How much you're up or down overall. Says nothing about how bumpy the ride was.

A portfolio can have a great return and a terrifying drawdown. Looking at only one hides half the story.

The Full Picture: Pair Drawdown With These

Quick Links

Return volatility - how jumpy your returns have been around their average

Sharpe ratio - whether your returns were worth the risk you took

Wealth velocity - how fast your net worth is actually moving

Understand Your Real Downside - Automatically

Turbobulls tracks max drawdown, volatility, and a dozen more risk and return metrics from your transaction history. Real-time updates, no spreadsheets.

  • Automatic max drawdown across your entire net worth history
  • Return volatility and Sharpe ratio alongside it for the full risk picture
  • Time-weighted and money-weighted returns to see where you ended up
  • Multi-currency net worth handled natively
  • Zero manual calculations - log a transaction, see updated metrics
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