Portfolio & RiskExplainer
What are risk tolerance and time horizon, and how do they work together?
Risk tolerance is how much loss you can accept; time horizon is when you need the money. See how the two interact, with recovery math computed in code.
Quick answer
Risk tolerance is your ability and willingness to accept losses in exchange for higher potential returns. Time horizon is how long you plan to invest before you need the money. A short horizon leaves little time to recover from a drop, so it limits how much risk makes sense.
Key points
- The SEC defines risk tolerance as your ability and willingness to lose some or all of your investment in exchange for greater potential returns.
- Time horizon is the expected number of months, years or decades you will invest to reach a particular goal.
- FINRA stresses that being willing to take risk and being able to take it are two different things.
- A 30% drop needs a 42.86% gain to recover — about 7.3 years at a steady hypothetical 5% a year.
- Each goal has its own horizon, and both inputs change over a lifetime, so revisit them.
What is risk tolerance?#
The SEC defines risk tolerance as your ability and willingness to lose some or all of your original investment in exchange for greater potential returns[1]. FINRA uses almost the same words: the amount of investment risk you're willing and able to accept, which is shaped by many factors and is unique to you[2].
Investor.gov offers a plainer test: whether you will be able to sleep at night if you buy a risky investment, one where you could lose your principal[3]. Principal is the money you put in. Risk tolerance is about how you would act when that money shrinks, not how you feel when markets are calm.
What is a time horizon?#
The SEC defines your time horizon as the expected number of months, years, or decades you will be investing to achieve a particular financial goal[1]. The key word is particular. You do not have one horizon; you have one per goal.
Investor.gov suggests deciding how many years you have to meet each specific goal, because when you save or invest you'll need an option that fits your time frame[4]. Money for next year's rent, a home deposit in four years and retirement in thirty years are three separate horizons, even if they sit in the same bank.
Example goals placed by time horizon
Why do willingness and ability to take risk differ?#
FINRA states that being willing and able to take on a certain amount of risk are two different things, and advises making sure the risk you're willing to take is consistent with the risk you're actually able to take[2]. Someone can be eager for risk with money they will need next year, or nervous about risk with money they will not touch for decades.
| Question | Willingness (emotional) | Ability (financial) |
|---|---|---|
| What it asks | How would I react to a large drop? | What happens to my plans if the drop happens? |
| What shapes it | Experience, temperament, past losses | Time horizon, income, savings, other obligations |
| Warning sign | Selling in a panic after a fall | Needing to sell a fallen investment to pay a bill |
| How to check it | Picture a specific dollar loss, not a percentage | List when each goal needs its money |
FINRA also warns that if the idea of losing money makes you squeamish, you probably don't want to pick the highest-risk investments: you might be more likely to back out early if you face volatility, which could also mean missing out on potential profits[2]. A mix you can hold through a bad year can matter more than a mix that looks best on paper.
How does time horizon change how much risk makes sense?#
FINRA puts it simply. With a long-term investment — for example, if you're in your 20s and planning for retirement — you can probably afford to take on more risk. If your timeline is short, you likely don't want your account to suffer a significant decrease just as it's time to withdraw[2].
The arithmetic of recovery shows why. After a fall, the balance must gain more than it lost, in percentage terms, just to get back to where it started. The table uses a $20,000 balance and a made-up steady return to estimate how long a recovery could take.
Worked example
Worked example: how long a $20,000 balance might take to recover
Recovery times assume a steady hypothetical return each year after the drop. Real markets do not move steadily, and a recovery can be much faster or much slower — or not happen within your horizon.
| Size of the drop | Value after the drop | Gain needed to get back to $20,000 | Years at a steady 5% a year | Years at a steady 7% a year |
|---|---|---|---|---|
| 10% drop | $18,000.00 | 11.11% | 2.2 | 1.6 |
| 20% drop | $16,000.00 | 25.00% | 4.6 | 3.3 |
| 30% drop | $14,000.00 | 42.86% | 7.3 | 5.3 |
| 40% drop | $12,000.00 | 66.67% | 10.5 | 7.6 |
| 50% drop | $10,000.00 | 100.00% | 14.2 | 10.2 |
Figures computed in code from the stated inputs; rounded to the nearest cent or tenth.
If a goal is two years away, even a 20% fall may not be made up in time under these assumptions. If it is twenty years away, there is room for several bad periods. This fits the SEC's point that the allocation that works best at any point in your life will depend largely on your time horizon and your ability to tolerate risk[1].
How do financial professionals record these two factors?#
In the U.S., FINRA's suitability rule lists what goes into a customer's investment profile: age, other investments, financial situation and needs, tax status, investment objectives, investment experience, investment time horizon, liquidity needs, risk tolerance and any other information the customer discloses[6]. Both of this note's topics are on that list.
The rule also says it does not apply to recommendations covered by the SEC's Regulation Best Interest[6]. Either way, expect a broker or adviser to ask about your horizon and your tolerance for loss before suggesting investments. Rules differ by country. Our before-you-invest checklist covers the other questions to settle first.
The two inputs, in regulators' words
When should you revisit your risk tolerance and time horizon?#
Horizons shrink every year by definition. The SEC says the most common reason for changing your asset allocation is a change in your time horizon, and lists changes in risk tolerance, financial situation or the goal itself as other reasons[1]. A new job, a new child, a large expense or retirement are natural moments to recheck both answers.
Once you know both answers for a goal, they feed directly into your asset allocation. To understand the kind of swings you are signing up for, read volatility and drawdowns explained, and for the bigger picture see risk and return.
What mistakes do beginners make?#
Judging risk tolerance in a rising market
Questions about loss are easy to answer when prices are going up. Picture a specific dollar loss on your actual balance before deciding how much risk you can accept.
Using one time horizon for every goal
Retirement money and a home deposit due in three years should not be treated the same. Give each goal its own horizon and its own mix.
Assuming a long horizon removes the risk
More years give more room to recover, but FINRA notes stocks don't get safer the longer you hold them. Plan for the possibility that a recovery takes longer than expected.
Never updating the answers
Your horizon shortens every year, and life changes your ability to take risk. Recheck both when your circumstances or goals change.
What else do beginners ask?#
What is the difference between risk tolerance and risk capacity?
U.S. regulators fold both sides into one term: the SEC calls risk tolerance your ability and willingness to lose some or all of your investment[1], and FINRA calls it the risk you're willing and able to accept[2]. If another source says risk capacity, check whether it means the ability side; either way, FINRA advises making sure the risk you're willing to take matches the risk you're actually able to take[2].
Does a longer time horizon mean I should take more risk?
It means you can probably afford more risk, in FINRA's words[2]. Whether you should also depends on your willingness to sit through declines.
How do I find my time horizon?
List each goal and the year you expect to need the money. Investor.gov suggests deciding how many years you have for each specific goal[4].
Why does a fall need a bigger gain to recover?
Because the gain is measured on a smaller balance. A 50% fall halves $20,000 to $10,000, and getting back to $20,000 then needs a 100% gain.
What is the bottom line?#
Risk tolerance and time horizon answer two different questions — how much loss can you take, and when do you need the money — and a sensible plan needs both answers for every goal. The recovery arithmetic explains why short horizons leave little room for large drops. Neither answer is fixed: horizons shrink every year and circumstances change, so revisit them, and let them guide your mix rather than last month's market.
Sources
Numbers in brackets in the text point here. Grade A = primary source (regulator, statistics agency, law or official document).
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