Indexy a trhy
How to Diversify Across Regions with One or Several ETFs
Key takeaways
- A global ETF (MSCI World, FTSE All-World) covers all regions with a single purchase.
- Adding emerging markets increases diversification and upside potential, but also volatility.
- More ETFs don't automatically mean better diversification — overlap matters.
- The more complex your portfolio, the more discipline rebalancing requires.
- For most new investors, one global ETF is almost always sufficient.
Regional diversification means your return doesn't depend solely on a single economy — a decline in the US or Europe can be offset by growth elsewhere.
One global ETF: the simplest path
Funds like MSCI World or FTSE All-World cover hundreds of companies across dozens of countries. Buy a single fund and you get instant regional diversification. MSCI World covers developed markets (US, Europe, Japan, Australia); FTSE All-World adds emerging markets (China, India, Brazil). For the vast majority of retail investors this is a perfectly adequate foundation. The comparison All-World vs. S&P 500 highlights the differences.
When to add a second (or third) fund
Some investors deliberately want a higher allocation to emerging markets than the global index provides, or wish to add a thematic ETF (small-cap, dividend companies). That makes sense if:
- you understand why you're adding that region/theme and what risk you're accepting,
- you're willing to rebalance the portfolio back to target weights regularly,
- the added complexity doesn't undermine your regular-investment discipline.
Watch out for pseudo-diversification
Owning three ETFs that each largely hold the same names (Apple, Microsoft, Amazon…) is not diversification — it's hidden concentration. Before adding a fund, check its overlap with what you already hold. Many platforms offer tools to compare fund compositions.
Rebalancing: essential maintenance
The more funds you hold, the more important rebalancing becomes. If one region grows strongly, its weight in your portfolio rises and you drift from your original intention. Annual rebalancing — or when any holding drifts more than 5–10% — is generally sufficient. See the ETF section for an overview of available funds.
FAQ
Do I need multiple ETFs for good diversification?
Not necessarily. A single global ETF like FTSE All-World covers hundreds of companies across dozens of countries. More ETFs make sense only when you deliberately want different regional or thematic weights.
What is the difference between MSCI World and FTSE All-World?
MSCI World covers only developed markets (about 23 countries). FTSE All-World adds emerging markets — totalling over 4,000 companies from more than 40 countries. All-World is therefore more globally comprehensive.
What is rebalancing and why does it matter?
Rebalancing means restoring your original portfolio weights. If one ETF grows strongly, its share rises above your target. Annual rebalancing keeps your risk profile consistent.