Age-Based Asset Allocation: A Simple Rule for Every Life Stage
Age-based asset allocation adjusts the ratio of stocks to safe assets based on your age. We explain the "110 minus age" rule, the logic behind it, and why you should adjust for your personal situation.
Age changes how you should invest
A 25-year-old and a 60-year-old should not have the same portfolio. Why? Because their time horizon and risk capacity are very different. Age-based asset allocation is a simple way to adjust your portfolio to your life stage.
The core logic: time and risk
The foundational principle:
- Young people have a lot of time ahead. They can tolerate big volatility (stocks, growth assets), because if the market drops, they have decades to recover and benefit from compounding.
- Older people (near/in retirement) have less time. They should reduce risk and increase stable assets (bonds, cash), because a sharp drop right before/during retirement is hard to recover from and dangerous when drawing down.
In short: the younger you are, the more toward growth; the older you are, the more toward preservation.
The "110 minus age" rule
A classic formula to estimate the stock allocation:
Stock allocation (%) ≈ 110 − your age
Examples:
- Age 30 → 110 − 30 = 80% stocks, 20% safe assets.
- Age 50 → 110 − 50 = 60% stocks, 40% safe.
- Age 65 → 110 − 65 = 45% stocks, 55% safe.
(There are variants using "100 minus age" for more caution, or "120 minus age" for more aggression — depending on risk appetite.)
As age rises, the stock allocation gradually falls, shifting the portfolio from growth to stability naturally.
This is a starting point, not a hard law
The age rule is a useful reference framework, but do not apply it mechanically. Adjust for your personal situation:
- Risk appetite: those who tolerate volatility can hold a higher stock ratio than the rule; those who lose sleep when the market is red should lower it.
- Goals and when you need the money: money needed soon (buying a home in 2 years) should be safe, regardless of age.
- Other income sources: those with a pension/other stable income can tolerate more risk.
- Longevity and health: retirement can last 30 years — you still need a growth portion to fight inflation.
Do not forget to rebalance
As you age and as markets move, your actual ratio will drift from the target. Periodically adjusting back to the desired ratio (portfolio rebalancing) keeps your portfolio aligned with your life stage. This is also part of the principle of asset allocation by goals.
Conclusion
Age-based asset allocation adjusts the ratio between growth (stocks) and safety (bonds, cash) based on the time and risk capacity that change with age. The "110 minus age" rule gives a simple starting point, but adjust for your own appetite, goals, and situation — and rebalance periodically.
Next step
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