Published on: 2026-09-02
Updated on: 2026-09-02
Investing always involves uncertainty. Markets rise and fall, asset prices react to economic developments, and even well-diversified portfolios can experience uncomfortable periods of decline. The important question is not simply how much return an investor wants, but how much volatility and potential loss they are genuinely prepared to tolerate along the way.
That is where risk tolerance comes in. Understanding it can influence everything from asset allocation to how an investor behaves during a market sell-off. More importantly, getting it wrong can lead to decisions that undermine an otherwise sensible long-term investment plan.
Risk tolerance describes an investor’s willingness to accept fluctuations and potential losses in the value of their investments in pursuit of longer-term returns.
An investor with a high risk tolerance may be comfortable holding assets that can experience substantial price swings, such as equities. Someone with a lower tolerance may prefer investments with less volatility, even if that means accepting lower potential returns.
The distinction becomes particularly important during market downturns.
It is relatively easy to believe you have a high tolerance for risk while stocks are climbing and portfolio values are increasing. The more revealing test comes when markets fall sharply and losses appear on the screen.
Imagine a $100,000 portfolio falling to $80,000 over several months. Would you remain invested? Would you immediately reduce your exposure? Would the loss interfere with your sleep or make you abandon your original strategy?
Those questions can help an investor think about risk tolerance, but actual behaviour when markets become stressful introduces another concept: risk composure.
Risk tolerance describes how much investment risk an investor is willing to accept. Risk composure describes whether they can maintain their planned behaviour when losses and volatility actually occur.
An investor could therefore have relatively high risk tolerance but poor risk composure, becoming uncomfortable enough during a sharp downturn to abandon a strategy they had previously accepted.
Risk tolerance matters because investment returns are only one side of portfolio construction. The investor must also be able to live with the journey required to pursue those returns.
Assets offering greater long-term return potential often come with greater short-term uncertainty. Stocks, for example, can generate significant long-term growth but may also experience sharp declines along the way. Lower-risk assets can provide greater stability, but generally offer less growth potential.
The objective is therefore not to take as much risk as possible. It is to take an amount of risk that an investor can realistically sustain.
A portfolio may look appropriate on paper but still be unsuitable if its volatility causes the investor to repeatedly change course. Someone who builds an aggressive portfolio and then sells after a major decline may lock in losses and miss a subsequent recovery.
The opposite problem also exists. An investor who is so concerned about losses that they hold almost everything in low-volatility assets may feel more comfortable, but that portfolio could provide insufficient growth for a long-term objective.
Risk tolerance therefore affects more than asset selection. It can influence whether an investor is capable of sticking with an investment strategy when markets become difficult.
Risk tolerance is only one part of deciding how much investment risk is appropriate. A more complete risk profile considers three separate questions: how much risk an investor is willing to take, how much risk they can financially withstand and how much risk they actually need to pursue their objective.
This is risk tolerance.
It reflects an investor’s psychological willingness to accept uncertainty, volatility and potential losses in pursuit of longer-term returns.
Investment experience can shape that willingness.
Investors who have lived through several market cycles may have a better understanding of how volatile markets can become. Less experienced participants may discover that their emotional reaction to losses is stronger than expected.
Knowledge and risk appetite should not be confused, however. Being willing to take substantial risk does not necessarily mean someone understands that risk well.
One of the most useful questions investors can ask themselves is simple:
What would I actually do if my portfolio fell 20%?
The answer can provide a more realistic indication of tolerance than describing yourself as conservative or aggressive.
This is risk capacity.
Risk capacity depends on financial circumstances rather than psychological willingness.
When the money will be needed is a major consideration.
Capital being accumulated for retirement several decades away can generally remain invested through more market cycles than money earmarked for a home purchase next year.
A longer horizon does not automatically mean an investor will be comfortable with risk, but it can provide more time for a portfolio to recover from downturns.
Income and financial stability also influence capacity. Someone who has stable income, adequate emergency savings and does not expect to withdraw investment capital soon may have greater ability to withstand short-term losses than someone who could need the money unexpectedly.
Liquidity needs, major financial obligations and other available financial resources should also be considered when assessing how much loss a portfolio can realistically absorb.
This is risk need.
Someone investing for long-term wealth accumulation may require more portfolio growth than someone primarily focused on preserving existing capital or generating dependable income.
The purpose of the portfolio should therefore come before deciding how much investment risk is actually required.
Risk need can depend on factors such as the size of the goal, the amount already invested, future contributions, the time available and the return required to pursue that objective.
An investor who already has sufficient capital to pursue a goal with a relatively conservative strategy may have little reason to take substantially more risk simply because they are willing and financially able to do so.
These three measures will not always point in the same direction. A willingness to take large losses cannot override an inability to financially afford them, while having the capacity to take substantial risk does not automatically mean that taking more risk is necessary.
The differences become especially important when an investor’s tolerance, capacity and risk need do not align.
Consider an investor who is emotionally comfortable with the possibility of a 30% portfolio decline but needs the money within 18 months, has limited emergency liquidity and faces a known financial obligation.
Their risk tolerance may be high, but their risk capacity is low. Being comfortable with volatility does not make the short time horizon longer or remove the financial obligation.
The reverse can also occur.
Someone may have a 25-year horizon, stable income and ample cash reserves, giving them substantial capacity to withstand market declines. Psychologically, however, that same investor might become highly uncomfortable after a relatively small loss or repeatedly sell after markets fall.
Their risk capacity may be high while their tolerance or composure is low. A portfolio that appears financially appropriate may still fail if its volatility repeatedly causes the investor to abandon the strategy.
A third investor might have both high risk tolerance and high capacity. They can afford substantial losses and are comfortable accepting them, but already have enough capital to pursue their financial objective using a lower-risk strategy.
In that case, risk need may be lower than both tolerance and capacity.
The appropriate portfolio is therefore not necessarily determined by whichever measure is highest. Constraints matter, and taking additional risk simply because an investor can tolerate it does not mean that additional risk is required.
One of the biggest problems with misjudging portfolio risk is behavioural.
An investor who takes more risk than they can comfortably handle may become anxious during periods of falling markets and sell after prices have already declined.
The market collapse during the early stages of the COVID-19 pandemic in March 2020 provided an extreme example. Investors were confronted by plunging markets, rapidly rising unemployment and enormous uncertainty surrounding the global economy. Those who had previously considered themselves comfortable with equity risk suddenly faced that risk in real time.
Markets provided another test in 2022 as rising interest rates weighed on both equities and bonds and some speculative stocks lost more than 80% from their previous highs.
These episodes highlight the difference between hypothetical losses and actual ones.
When portfolio risk exceeds what an investor can tolerate or financially withstand, they may:
panic-sell during downturns;
continually switch strategies;
avoid looking at their portfolios;
make decisions based on short-term headlines;
abandon long-term investment plans.
Taking too little risk can also create problems. Excessive caution may reduce the growth potential needed to meet a long-term financial objective.
The goal is therefore alignment rather than maximum safety or maximum return.
Risk questionnaires can provide a useful starting point, but they should not be treated as permanent answers.
Investors can also assess their tolerance by making potential losses more concrete.
| Portfolio | 10% fall | 20% fall | 35% fall |
|---|---|---|---|
| $50,000 | −$5,000 | −$10,000 | −$17,500 |
| $100,000 | −$10,000 | −$20,000 | −$35,000 |
| $500,000 | −$50,000 | −$100,000 | −$175,000 |
Instead of asking whether a 20% decline sounds acceptable, consider the monetary loss and ask:
At what point would you feel compelled to change the strategy?
Imagine that the decline lasts for several months rather than reversing immediately. Would you maintain the portfolio, reduce risk, sell investments or abandon the original plan?
The exercise cannot perfectly predict behaviour during a real market decline, but it can make an abstract percentage considerably more tangible.
Investors with previous market experience can also examine their own behaviour. What did they actually do during earlier corrections? Did they maintain their strategy, reduce risk, sell everything or continue investing?
Past behaviour cannot perfectly predict future decisions, but it may provide useful evidence of risk composure.
Risk tolerance should also be revisited when circumstances change. Investment experience and attitudes toward losses may evolve, while approaching retirement, taking on major financial obligations, experiencing a substantial change in income or reaching an important investment goal can alter risk capacity or risk need.
Periodic reassessment is therefore important because tolerance, capacity and the amount of risk required to pursue a goal can all change over time.
Risk tolerance is a big deal because successful investing depends on more than identifying assets with attractive potential returns. Investors also need a portfolio whose inevitable periods of volatility they can realistically withstand.
Taking excessive risk can lead to emotional decisions when markets fall, while taking too little may leave long-term growth objectives harder to reach. Neither extreme is automatically appropriate.
The most suitable level of risk is therefore highly individual. It reflects how much risk an investor is willing to accept, how much loss their financial circumstances can withstand and how much risk is actually required to pursue their goals.
A portfolio does not need to eliminate uncomfortable periods. It needs to contain a level of risk that gives the investor a reasonable chance of remaining disciplined when those periods inevitably arrive.
