Portfolio a alokace
How to Set Up a Portfolio for a Specific Goal (Home, Children, Retirement)
Key takeaways
- Each goal has a different horizon and a different tolerance for volatility — which is why each needs its own setup.
- The shorter the horizon, the fewer equities and the more conservative instruments belong in the portfolio.
- Regularly update your estimate of the required amount and recalculate how much to save each month.
- As the goal approaches, gradually reduce the share of risky assets so a sudden market drop doesn't catch you off guard.
A portfolio designed for a specific goal takes three things into account: how much money you need, how soon you need it, and how much a drawdown would stress you out. Without this framework, any allocation is just guesswork.
Why the Goal Matters
Investing "for the future" and investing "for a home purchase in five years" are fundamentally different tasks. In the second case, you can't wait a decade for the market to recover — you need the money available on a specific date. That immediately limits how much of your portfolio can be in volatile assets.
The three most common goals in the Czech context:
- Homeownership — a 3–7-year horizon, a concrete target amount, low tolerance for loss (a forced sale during a downturn would be painful).
- Children's education — a 10–18-year horizon, with risk tolerance gradually decreasing as the date approaches.
- Retirement / financial independence — a 15–30-year horizon, the most room for equities; once reached, you transition to the "spending phase".
How to Work with Time Horizon
A rough rule: within 3 years of withdrawal, more than 40% in equities is risky. In the 3–7-year range, a moderate allocation (40–70%) works. Beyond 10 years, the portfolio can handle a fully equity-heavy allocation — if you can handle it psychologically.
For a goal with a fixed date, gradually reduce the equity share as the deadline nears — not all at once, but perhaps 5–10% per year in the final years.
How to Estimate the Required Amount
For a home, look at real prices in your area and subtract the expected mortgage. For retirement, use the 25× annual expenses rule as a rough target (a ~4% safe withdrawal rate). For education, estimate costs and inflate them for future price increases.
Overlapping Goals and the Portfolio as a Whole
If you have multiple goals at once (home + retirement), you don't necessarily need two separate portfolios. But it's good to keep them mentally separate so a short-term goal doesn't drag down what you've planned for retirement. Read more about building a first portfolio or about the role risk plays in it.
FAQ
How many equities should I hold in a portfolio targeting a home purchase in 5 years?
With a five-year horizon, a maximum of 50–60% equities is recommended, with the remainder in more conservative instruments. The closer you get to withdrawal, the more you should reduce the equity share — a sharp drop just before you need the money would be very painful.
How do I calculate how much to save each month?
Estimate the target amount, subtract what you already have, and spread the remainder over the remaining months. You can refine the calculation with an assumed return, but be conservative — it's better to save more and be pleasantly surprised.
What is the 25x rule for retirement?
It's a rough target portfolio value: 25 times your annual expenses. Withdrawing 4% per year, the portfolio should last a very long time. It's not a guarantee, but a good starting point for planning.