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Risk capacity vs. tolerance vs. need
Three different questions that risk questionnaires collapse into one slider - what each means, why conflating them produces the wrong portfolio, and how to keep them separate.
Most risk questionnaires ask you to rate your "risk tolerance" on a scale of one to ten and call it done. That single number hides three genuinely different questions, and conflating them is how households end up with the wrong portfolio - either too conservative to meet their goals or too aggressive for their situation to survive.
The three questions
- Capacity is structural: how much loss can your situation actually absorb without derailing your plan? A 40-year-old with stable income and decades to recover has high capacity. A retiree drawing down a portfolio with no other income has low capacity, regardless of how brave they feel.
- Tolerance is emotional: how much volatility can you live with without abandoning the plan at the worst moment? This is about temperament, not arithmetic - and the cost of getting it wrong is selling at the bottom.
- Need is mathematical: how much return does your plan actually require to fund what you want? If you have already won the game - enough assets to fund your life at a low return - you may need very little risk, even if you have the capacity and tolerance for more.
The three frequently disagree. A wealthy retiree might have low need, low capacity, but a high tolerance built over decades of investing. The right amount of risk respects the most binding of the three, not the most comfortable.
A worked example
Consider a household with $6M that needs $180,000 a year. That is a 3% withdrawal rate - a need that does not require an aggressive portfolio to meet. If they also have low capacity (no other income, fully reliant on the portfolio), the fact that they tolerate a 70% equity allocation emotionally is the weakest of the three signals. Letting tolerance drive the allocation here takes risk the plan does not need and the situation cannot easily absorb.
How Ironlake treats it
Ironlake's IPS Builder separates these three on purpose. Rather than make you drag a single risk slider, it asks scenario-based questions and records capacity, tolerance, and need as three distinct 1-to-10 scores in your written plan - so a future you (or a spouse, or an advisor) can see not just what allocation you chose but the reasoning across all three dimensions.
- See where this lives: what an Investment Policy Statement is.
- Build it: build your investment plan.
Honest limits
These are judgments, not formulas - capacity and tolerance in particular resist a clean number, and they change as your life changes, which is why the IPS is versioned rather than set once. The three scores are a record of your own answers, a prompt for reflection - not a prescription; Ironlake does not pick an allocation for you. The decision about how much risk to take stays yours.