How to Choose Bond ETF Fund — When to Add to Portfolio
Guide to bond ETFs available for Polish investors. Types, costs, risk and when to add them to portfolio.
9 min czytaniaWhy Bonds in Portfolio?
Bonds serve three roles:
- Stabilization — reduce portfolio volatility
- Income — regular coupons / interest
- Bear market ammunition — when stocks fall, sell bonds and buy cheap stocks
You don't need to buy individual bonds — bond ETFs do it for you.
Types of Bond ETFs
Short-term Government Bonds (1–3 years)
- Low volatility, low return
- Example: iShares EUR Govt Bond 1-3yr (IBGS)
- For whom: short horizon, low risk tolerance
Medium-term Government Bonds (3–7 years)
- Moderate volatility
- Example: iShares EUR Govt Bond 3-7yr
- For whom: stable portfolio part 5–10 years
Long-term Government Bonds (10+ years)
- High volatility (interest rate sensitivity)
- Example: iShares EUR Govt Bond 15-30yr
- For whom: speculation on interest rate decline
Corporate Bonds (investment grade)
- Higher coupon than government, higher risk
- Example: iShares EUR Corp Bond (IEAC)
- For whom: seeking higher income while accepting credit risk
Inflation-linked Bonds
- Protect against inflation
- Example: iShares EUR Inflation Linked Govt Bond (IBCI)
- Alternative: Polish EDO bonds (not ETF, but similar function)
Key Selection Parameters
1. Duration (Average Maturity)
The higher the duration, the greater the sensitivity to interest rate changes. Duration 5 = ~5% price drop with 1 percentage point rate increase.
2. TER (Total Expense Ratio)
Annual management fee. For bond ETFs: 0.05–0.25%. Avoid funds above 0.30%.
3. Currency
EUR/USD ETFs generate currency risk. Options:
- Accept risk (currency diversification)
- Choose hedged versions (PLN-hedged) — more expensive, but without currency risk
- Buy Polish treasury bonds directly
4. Accumulating vs Distributing
- Accumulating (Acc) — reinvests interest, better tax-wise
- Distributing (Dist) — pays out interest, better when you need income
When to Add Bonds to Portfolio?
- Age 20–35, horizon 20+ years: 0–20% bonds (time is on your side)
- Age 35–50, horizon 10–20 years: 20–40% bonds
- Age 50+, horizon < 10 years: 40–60% bonds
- Approaching FIRE: gradually increase bonds (glide path)
Bond ETFs vs Polish Treasury Bonds
| Bond ETFs | Treasury Bonds (EDO/COI) | |
|---|---|---|
| Liquidity | Daily (exchange) | Early redemption with fee |
| Diversification | Hundreds of issues | One (Polish Treasury) |
| Inflation protection | Depends on type | EDO — yes ✅ |
| Currency risk | Yes (EUR/USD) | None ✅ |
| Costs | TER 0.05–0.25% | 0 PLN (but early redemption fee) |
Conclusion: Polish EDO/COI bonds are a great alternative to bond ETFs — without currency risk and with inflation protection. ETFs better for global diversification.
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