The three-fund portfolio is a classic of passive investing: three broad index funds covering home-country stocks, international stocks and bonds. It became famous among US investors, but the idea translates well to Europe with a few adjustments.
In short
- Combine developed-world stocks, emerging-market stocks and bonds in your own currency.
- A single all-world ETF plus a bond ETF is an even simpler alternative.
- Rebalance once a year, ideally by directing new contributions.
The original idea
The US version combines a total US stock market fund, a total international stock fund and a total bond fund. It is cheap, diversified and easy to maintain. The challenge for Europeans is that “home country” means something different, and US funds are mostly not available. See why Europeans can’t buy US ETFs.
The European three-fund portfolio
For most Europeans, a heavy home bias makes little sense: your country is a small fraction of the global market. A practical European three-fund portfolio looks like this:
| Building block | Role | Example UCITS ETFs |
|---|---|---|
| 1. Developed world stocks | Core growth engine | IWDA, SWRD |
| 2. Emerging markets stocks | Extra diversification and growth | EIMI |
| 3. Bonds in your currency (hedged) | Stability and lower volatility | Global aggregate bond ETF hedged to EUR or GBP, or a government bond ETF in your currency |
Simpler alternative: replace blocks 1 and 2 with a single all-world ETF such as VWCE. That gives you a two-fund portfolio: one global stock ETF plus one bond ETF. Compare options in best all-world ETFs.
Example allocations
| Risk profile | Developed world | Emerging markets | Bonds | Typical investor |
|---|---|---|---|---|
| Aggressive | 88% | 12% | 0% | Young, long horizon, high tolerance for crashes |
| Growth | 70% | 10% | 20% | Long horizon, wants some cushion |
| Balanced | 53% | 7% | 40% | Medium horizon or lower risk tolerance |
| Conservative | 35% | 5% | 60% | Close to needing the money |
The stock split (roughly 88/12) mirrors the global market weights of developed and emerging markets. Adjust the bond share to the drop you can tolerate without selling: in a severe crash, a 100% stock portfolio can fall by half.
Why bonds in your own currency?
Bonds are there to reduce volatility. If you hold unhedged global bonds, currency swings can add volatility instead of removing it. That is why European investors typically use bond ETFs hedged to their currency, or government bonds issued in their currency.
How to rebalance
Over time, the best-performing part grows above its target weight. Rebalancing brings it back:
- Check once a year, on a fixed date.
- Rebalance if a block is more than 5 percentage points off target.
- Use new contributions first: direct your monthly savings to the underweight block, so you rarely need to sell (and pay tax).
Common mistakes
- Adding too many funds. A fourth or fifth ETF often overlaps with what you already own.
- Chasing last year’s winner. Switching to the hot region after a strong year usually means buying high.
- Ignoring taxes. Selling to rebalance can trigger capital gains tax in many countries; rebalance with contributions when possible.
- Choosing bonds by yield alone. Long-duration bonds can fall sharply when interest rates rise.
Is a three-fund portfolio better than one fund?
Not necessarily. A single all-world ETF plus a bond ETF is simpler and almost identical in practice. The three-fund approach is worth it if you want control over your emerging markets weight. Simplicity is a feature: a portfolio you understand and stick with will beat a clever one you abandon.
Sources
This article is for educational purposes only and is not financial advice.