Portfolio a alokace
The Bogleheads Three-Fund Portfolio: Simplicity That Pays
Key takeaways
- The three-fund portfolio consists of domestic equities, international equities, and bonds — just three funds.
- The key is a low expense ratio and regular rebalancing, not picking the right stocks.
- For Czech investors, it makes sense to replace the domestic component with European equities or leave it out entirely.
- The simplicity of the portfolio reduces the temptation to over-trade, saving both time and money.
- The three-fund portfolio suits a horizon of five or more years and any investment amount.
The Bogleheads three-fund portfolio is an investment strategy inspired by Jack Bogle's philosophy: three low-cost index funds are sufficient to diversify across the entire global market without the need for active management.
Composition and Logic
The original American version combines:
- US equity fund — the full US market
- International equity fund ex-US — Europe, Asia, emerging markets
- Bond fund — government or aggregate bond market
The ratio depends on age and risk tolerance. A younger investor might have 80–90% in equities, a more conservative investor 60/40 or less.
Czech Adaptation
As a Czech investor, you don't have a domestic equity market comparable in depth to the US. Two options exist: either use a global All-World ETF instead of a separate US component (effectively moving to a two-fund portfolio), or replace the domestic market with an eurozone ETF. More on choosing a global ETF in the comparison All-World vs. S&P 500. Broker selection is covered in the guide for Czech investors.
Why It Works
The three-fund portfolio doesn't need a genius — it needs discipline. Regular contributions via DCA, annual rebalancing, and no unnecessary reactions to news. Research repeatedly shows that most active managers underperform a passive index after fees. That's the foundation of the Bogleheads philosophy, named after its founder.
When It Falls Short
The three-fund portfolio doesn't address every need — tax optimization through tax-advantaged accounts, a real estate component, or regular dividend income. For these situations, the three-fund portfolio can be supplemented or adjusted, but as a foundation it works in almost all cases.
FAQ
How many funds do I actually need for a good portfolio?
Bogleheads say three is enough. Global equities, bonds, and optionally a regional component. Adding more funds unnecessarily increases complexity and costs without significantly improving diversification.
What is the difference between a two-fund and a three-fund portfolio?
A two-fund portfolio combines only a global equity ETF and a bond ETF. The three-fund portfolio adds a domestic or regional equity component for greater control over geographic allocation. Both variants are functional.
When should I rebalance a Bogleheads portfolio?
Once a year is sufficient — for example, every December or on the anniversary of your first deposit. Rebalance with new contributions to minimize tax consequences from selling.