WealthMaximum Drawdown: The Risk Metric Every Canadian Investor Needs to Understand
What Is Maximum Drawdown?
Maximum drawdown is the largest percentage decline from a peak to a subsequent trough in a portfolio’s value, measured before a new peak is reached. In plain terms: if your portfolio hit $100,000, then dropped to $60,000 before recovering, your maximum drawdown would be −40%.
This metric is tracked across many Canadian funds and indices. The TMX Group publishes historical performance and correction data for the S&P/TSX Composite, available at tmx.com. Understanding this data for any investment you hold is a fundamental building block of financial literacy — as highlighted by the OSC’s GetSmarterAboutMoney.ca.
The Recovery Table: The Brutal Math of Losses
Here’s what many investors don’t fully grasp: losses and gains are not symmetrical. A 50% loss is not cancelled out by a 50% gain — you need a 100% gain just to get back to where you started. That’s pure arithmetic, and its implications for risk management are significant.
| Drawdown | Gain Required to Recover |
|---|---|
| −10% | +11.1% |
| −20% | +25.0% |
| −30% | +42.9% |
| −40% | +66.7% |
| −50% | +100.0% |
| −60% | +150.0% |
If your portfolio drops 50%, it must double in value before you’re back to square one. Depending on your remaining time horizon, that recovery window may be uncomfortably long — especially if you’re approaching retirement.
Volatility (standard deviation)
- Measures how much a portfolio fluctuates on a daily or monthly basis
- A highly volatile fund may swing up and down often, but those swings can be short-lived
Maximum Drawdown
- Measures the worst sustained sequence of losses before a recovery
- Answers the real question: “What’s the worst I could have lost — and for how long?”
Drawdown vs. Volatility: What’s the Difference?
Volatility (standard deviation) measures how much a portfolio fluctuates on a daily or monthly basis. A highly volatile fund may swing up and down often, but those swings can be short-lived. Maximum drawdown measures something different: the worst sustained sequence of losses before a recovery.
A portfolio can have low volatility but a high maximum drawdown if a single prolonged correction hit hard. Conversely, a highly volatile portfolio that recovers quickly might show a modest maximum drawdown. For many investors, drawdown is more relevant because it answers the real question: “What’s the worst I could have lost — and for how long?”
| Portfolio | Historical maximum drawdown range |
|---|---|
| 100% equity | −40% to −50% |
| 60/40 stock-bond | −20% to −30% |
Diversification and Bonds: Reducing Drawdowns
The good news: you can reduce maximum drawdown without completely sacrificing long-term returns. Diversification — spreading across Canadian, U.S., and international equities, plus fixed income — cushions the blow when any one sector or region collapses.
Bonds play a particularly important role. Historically, they have often (though not always) risen when stocks fall, which reduces the depth of drawdowns in a blended portfolio. A 100% equity portfolio might experience maximum drawdowns of −40% to −50%, whereas a 60/40 stock-bond portfolio has often seen its worst drawdowns limited to the −20% to −30% range over the same periods.
A 35-year-old investor
- Can weather a −40% drawdown with minimal long-term damage
- The market has decades to recover
A retiree withdrawing 5% annually
- Forced to sell depreciated assets to cover living expenses during the same drawdown
- May never fully recover — fewer units are left to benefit from the eventual recovery
Drawdown and Sequence-of-Returns Risk Near Retirement
Maximum drawdown becomes even more critical as you approach retirement. This is where sequence-of-returns risk comes in: if a market crash hits right when you start withdrawing, you’re forced to sell depreciated assets to cover living expenses, leaving fewer units available to benefit from the eventual recovery.
A 35-year-old can weather a −40% drawdown with minimal long-term damage — the market has decades to recover. A retiree withdrawing 5% of their portfolio annually during the same drawdown may never fully recover. This is why aligning your risk exposure to your time horizon isn’t optional — it’s essential planning.
The Behavioural Angle: Know Your Tolerance Before the Crash
The real value of maximum drawdown isn’t accounting — it’s behavioural. Knowing that a 100% equity portfolio can plunge 40% or more helps you decide in advance whether you could actually hold through that without selling.
Selling at the bottom of a crash is one of the most costly mistakes an investor can make. GetSmarterAboutMoney.ca notes that investors who define their risk tolerance realistically — and choose a portfolio aligned with that tolerance — are far better equipped to resist panic than those who loaded up on equities without ever thinking through their true pain threshold. Investing through a market crash is far more manageable when your plan already accounts for the possibility of a severe correction.
Ask yourself now: if your portfolio lost 35% in six months, would you sell? If the honest answer is “probably yes,” your equity allocation may be too high — and your actual maximum drawdown tolerance lower than you think.
📉 Calculator: recovery after a loss
A loss needs a bigger gain to get back to the peak.
The key drawdown rule: the deeper the fall, the more the required recovery explodes.
Frequently asked questions
What’s the difference between drawdown and volatility?
Volatility (standard deviation) measures the magnitude of a portfolio’s regular fluctuations. Maximum drawdown measures the worst peak-to-trough loss before a new high — it’s a measure of the worst-case scenario experienced, not daily turbulence. For many investors, drawdown is more intuitive: it answers “how much could I have lost in the worst case?”
Why does a 50% loss need a 100% gain to recover?
Because the starting point changes. If your portfolio falls from $10,000 to $5,000 (−50%), you need to gain 100% on that $5,000 to get back to $10,000. A 50% gain on $5,000 only gets you to $7,500. It’s basic arithmetic, but its implications for risk management are profound.
How can I reduce the maximum drawdown of my portfolio?
The two main levers are geographic and sector diversification, and adding bonds or other assets that are less correlated with equities. A 60/40 stock-bond portfolio has historically experienced shallower drawdowns than a 100% equity portfolio. Low-volatility ETFs are another option, though they sometimes sacrifice upside in strong bull markets.
What maximum drawdown can I actually tolerate?
Ask yourself: if my portfolio lost X% over six months, would I sell or hold? If you’d sell at −20%, then a portfolio with a historical maximum drawdown of −40% isn’t right for you. GetSmarterAboutMoney.ca offers tools to realistically assess your risk tolerance before choosing your asset allocation.
Is maximum drawdown more important near retirement?
Yes, significantly so. During the drawdown phase, a market crash forces you to sell depreciated assets to cover expenses. You end up with fewer units to benefit from the recovery — that’s sequence-of-returns risk. The closer you are to retirement, the more weight you should give to maximum drawdown when choosing your allocation.
How do I find the maximum drawdown for a Canadian ETF or fund?
Most ETF providers (including those listed on the TSX) publish risk statistics including maximum drawdown in their fund fact sheets or simplified prospectuses. The TMX Group (tmx.com) also provides historical data on Canadian indices. Always check the fund’s own documentation for the most accurate figures.
Sources & references
Educational content; verify figures with official sources before acting.