The short answer: a currency-hedged ETF aims to reduce the effect of exchange-rate movements between the portfolio’s foreign currencies and your home currency. An unhedged ETF leaves that currency effect in your return. Hedging can make a global bond allocation behave more like bonds in your home currency; for global equities, the decision is less automatic because currency movements can either soften or amplify share-price moves.
The trading currency shown beside an ETF is not the same thing as its currency exposure. Buying a global equity ETF in euros does not remove exposure to the currencies of the companies and assets inside the fund. The useful question is whether the fund or share class uses currency forwards to hedge those underlying exposures back to euros.
Hedged and unhedged ETFs compared
| Feature | Unhedged ETF | Currency-hedged ETF |
|---|---|---|
| Currency effect | Foreign-currency moves add to or subtract from the asset return | Forwards aim to reduce the selected currency exposure |
| Expected match | Unhedged benchmark in the investor’s reporting currency | The corresponding hedged benchmark and hedge currency |
| Extra return components | Spot currency movement | Carry, trading costs, hedge timing and residual exposure |
| Common role | Long-term global equity exposure where FX variation is accepted | Global bonds or a portfolio with a deliberate home-currency risk target |
| Main mistake | Assuming a EUR listing removes foreign-currency exposure | Assuming the hedge is free, exact or permanently beneficial |
How currency changes the return
For a simplified one-currency example, the unhedged return in your home currency is:
Unhedged return = (1 + local asset return) × (1 + foreign-currency return versus your home currency) − 1
Suppose a EUR-based investor owns foreign assets that rise 8% in their local currency. If that foreign currency also rises 10% against the euro, the home-currency return is 18.8%: 1.08 × 1.10 − 1. If the foreign currency falls 10%, the result is −2.8%: 1.08 × 0.90 − 1.
| Local asset return | Foreign currency vs EUR | Unhedged EUR return | Hedged approximation before carry and implementation |
|---|---|---|---|
| +8% | +10% | +18.8% | About +8% |
| +8% | 0% | +8.0% | About +8% |
| +8% | −10% | −2.8% | About +8% |
| −8% | +10% | +1.2% | About −8% |
| −8% | 0% | −8.0% | About −8% |
| −8% | −10% | −17.2% | About −8% |
The hedged column is deliberately approximate. A real hedge is not a switch that deletes currency from the return. Interest-rate differences between currencies affect forward prices, trades have costs, the fund resets hedges on a schedule, and asset values move between resets.
What the hedge actually does
A common hedged benchmark sells each foreign currency forward against the home currency, usually with contracts rolled monthly. The hedge amount is based on the portfolio’s currency weights at a defined calculation date. Because holdings, prices and exchange rates keep moving, the hedge can be slightly above or below the exposure before the next reset.
This creates four separate items to inspect:
- Carry: the effect of the interest-rate difference embedded in forward exchange rates.
- Transaction costs: the cost of establishing and rolling the currency forwards.
- Hedge timing: the gap between the exposure measured for the hedge and the portfolio’s later value.
- Fund charge: the ongoing charge of the exact hedged share class, which may differ from the unhedged class.
Calling all four items a fixed “hedging fee” hides why the gap changes through time. Compare matched share classes against their correct hedged and unhedged benchmarks. The ETF TER vs tracking difference guide explains why the headline charge alone does not establish the realised result.
Why bonds and equities lead to different decisions
High-quality bonds are often used to reduce portfolio volatility. Unhedged exchange-rate movement can be much larger than the expected movement in a short- or intermediate-term bond portfolio, weakening that stabilising role. Vanguard’s 2026 multi-asset research therefore gives a practical rule of thumb: hedge foreign bonds while leaving most foreign equity exposure unhedged.
That rule is a starting point, not a universal instruction. A short spending horizon, a liability fixed in euros or a low tolerance for exchange-rate variation can support more hedging. A long equity horizon and a willingness to accept currency variation can support an unhedged allocation. Taxes, available share classes and trading costs also depend on the investor’s country and account.
Check the exact share class
Fund names can look nearly identical while one share class is hedged to EUR and another is not. Record the ISIN, hedge currency, distribution policy, benchmark, ongoing charge and exchange listing. “EUR” in a ticker or trading line may describe only the currency used to buy and sell units.
A EUR-hedged class is designed for investors treating the euro as the home currency. It does not hedge every business risk faced by the underlying companies, and it does not make a foreign equity portfolio behave like euro-area equities.
A practical decision framework
- Choose the home currency tied to your future spending or liability.
- Decide whether the allocation’s job is growth, stability or a known payment.
- Identify the exact hedged and unhedged share classes and their benchmarks.
- Compare ongoing charges and matched-period tracking difference.
- Check how the index or fund sets and resets its hedge ratio.
- Model a stronger and weaker home currency rather than assuming one direction.
For a growth-oriented global equity allocation, unhedged exposure is a coherent default when the investor accepts currency variation. For global bonds intended to stabilise a EUR portfolio, EUR hedging has a stronger structural case. The right answer comes from the asset’s role, home currency and exact implementation.
Frequently asked questions
Does buying an ETF in euros remove currency risk?
No. The trading currency is how units are quoted and settled. Economic currency exposure comes mainly from the assets held by the fund and any hedge the fund applies.
Can currency hedging increase returns?
Yes, in some periods. Hedging removes adverse currency moves but also removes favourable ones, while carry and implementation affect the result. A higher historical hedged return does not prove that hedging will add return in the next period.
Is a hedged ETF safer?
It can reduce one source of volatility relative to a chosen home currency. It does not remove market, credit, duration, liquidity, counterparty or fund-structure risk.
Should global bond ETFs be currency hedged?
There is a stronger case for hedging high-quality foreign bonds because exchange-rate movement can overwhelm the stabilising return pattern investors expect from bonds. The appropriate hedge still depends on the liability currency, fund and portfolio.
Sources and limitations
Vanguard’s July 2026 research evaluates currency hedging in multi-asset portfolios. The MSCI hedged-index methodology documents the forward-based index process. BlackRock’s ETF due-diligence guide separates carry, transaction costs and hedge imperfections. UBS’s currency-hedging explanation describes implementation through hedged share classes.
The scenario grid is deterministic and rounded to one decimal place. It is not a forecast or historical backtest. It ignores fund fees, tax, bid-ask spreads and specific forward carry. Exact results depend on the fund, benchmark, hedge currency, reset method and period.