Hedged vs Unhedged ETFs: When Currency Protection Matters

Currency hedging in ETFs removes the impact of exchange rate movements on your investment returns. An unhedged USD ETF gains when USD strengthens against your base currency and loses when USD weakens. A EUR-hedged version eliminates this effect, delivering only the underlying asset's return.

Quick Answer

The mainstream rule is simple: hedge bonds, do not hedge long-term stocks. Bond returns (2-5%/year) are too small to absorb 5-15% annual currency swings, so unhedged FX defeats the stability bonds provide. Equity returns (8-10%/year) are large enough that currency effects tend to wash out over 15-20 years, while the 1-2% annual hedging cost compounds into meaningful drag. Hedging cost equals the rate differential — roughly 1.5% for USD→EUR, 3.5% for JPY→EUR, 1.25% for USD→PLN. For Polish investors: keep equities (VWCE, IWDA, CSPX) unhedged, hold bonds EUR-hedged (AGGH), and accept PLN/EUR exposure as a diversifier since PLN-hedged UCITS ETFs barely exist.

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The core decision framework

Hedge bonds, do not hedge stocks

This is the consensus among most portfolio managers, and the reasoning is straightforward:

Bond returns are small (2-5% per year). Currency movements of 5-15% per year can overwhelm bond returns. An unhedged global bond ETF has currency-driven volatility that defeats the purpose of holding bonds (stability). Hedge your bonds.

Stock returns are larger (8-10% per year). Currency movements, while meaningful, are smaller relative to equity returns. Over 20+ years, currency effects tend to wash out. The 1-2% annual hedging cost compounds to significant return drag. Do not hedge long-term equities.

Performance comparison (S&P 500 from EUR investor perspective)

In 2022, the strong USD added returns for unhedged investors. In 2023, EUR strength helped hedged investors. The direction of the benefit is unpredictable, which is precisely the point.

Hedging cost breakdown

The cost is highest for currencies with large interest rate differentials. JPY hedging to EUR costs approximately 3.5% per year, making hedged Japanese equity ETFs expensive.

For Polish investors specifically

PLN adds another layer. Most "hedged" ETFs hedge to EUR, not to PLN. A Polish investor in an EUR-hedged S&P 500 ETF still has PLN/EUR exposure.

Full hedging stack: PLN to EUR (you hedge externally or accept this risk) + EUR to USD (the ETF hedges this). The PLN/EUR component is typically left unhedged because:

1. PLN-hedged UCITS ETFs barely exist
2. The cost would be high (PLN rates are higher than EUR)
3. EUR exposure provides useful diversification for a PLN-based investor

Practical recommendation for Polish investors:

• Equities (long-term): Unhedged (VWCE, IWDA, CSPX)
• Bonds: EUR-hedged (AGGH). Accept PLN/EUR exposure as a diversifier
• Short-term savings in PLN: Keep in PLN savings accounts or Polish Treasury bonds

The evidence over long periods

Research by Vanguard and others shows that over 20+ year periods, hedging equity positions provides no statistically significant improvement in risk-adjusted returns. The hedging cost consistently drags returns, while currency movements mean-revert. For bonds, hedging consistently improves risk-adjusted returns.

Track your hedged and unhedged positions in Freenance. Understanding your total currency exposure across all investments helps you make informed decisions about where hedging adds value.

Related Articles

• Currency Hedged ETFs — General hedging guide
• AGGH Review — The standard hedged bond ETF
• Asset Allocation by Age — Portfolio construction context

FAQ

What is the carry cost of hedging a USD ETF to EUR or PLN?

The hedging cost equals the short-term interest rate differential between the two currencies. With USD rates higher than EUR rates, hedging USD to EUR costs roughly 1.5% per year in 2026, and hedging USD to PLN costs roughly 1.25% because PLN rates are even closer to USD rates. This cost is paid silently inside the ETF and shows up as a drag on returns versus the unhedged version.

When does an EUR-hedged ETF help a Polish investor?

A EUR-hedged ETF helps mainly when the foreign currency (typically USD) weakens against EUR during your holding period and your time horizon is short. For multi-year EUR-denominated bond exposure, hedging usually improves the risk profile because FX volatility otherwise dominates bond returns. For long-term equity holdings, the benefit is statistically weak once you subtract the carry cost.

Should I hedge stocks or only bonds?

The mainstream consensus is to hedge bonds and not hedge long-term equities. Bond returns are too small to absorb 5-15% FX swings, while equity returns are large enough that currency effects tend to wash out over 15-20 years. The 1-2% annual hedging cost compounds heavily on a long equity timeline.

Why is there almost no PLN-hedged UCITS ETF?

The UCITS market is built around EUR investors, so the vast majority of hedged share classes are EUR-hedged. PLN is a smaller currency with higher rates, which makes hedging both expensive and operationally niche. In practice Polish investors either accept the PLN/EUR exposure or hedge the PLN leg externally with EUR deposits.

Does hedging change the tax treatment of the ETF in Poland?

No. Polish tax treatment depends on whether you realised a gain in PLN terms when you sold the ETF, not on whether the share class is hedged. The 19% Belka tax applies to the PLN-denominated profit on sale and to any distributions, regardless of the hedging mechanism inside the fund. This is general information, not tax advice.

This article is for educational purposes only and is not investment advice or a recommendation to choose a hedged or unhedged ETF. Currency and market risk apply either way; weigh your own horizon and goals before deciding.