Hedged vs Unhedged ETFs: Currency Impact
Hedged ETFs neutralize currency swings on foreign holdings; unhedged ones let them ride. The right pick depends on your time horizon, the asset class, and the cost of hedging.
Don't have time? Here's what you need to know:
- 1Hedged ETFs strip out exchange-rate moves on foreign holdings; unhedged ETFs leave that currency exposure in.
- 2Hedging carries a cost, so it's usually not worth paying for on long-horizon international equities.
- 3International bonds are often best held hedged (e.g. BNDX), since currency swings can dwarf the bond yield.
- 4Avoid switching between hedged and unhedged funds to time the dollar; currency forecasting is unreliable and costly.
What Currency Hedging Actually Does
When you buy an international ETF, your return has two moving parts: how the foreign assets perform in their local currency, and how that currency moves against your home currency. A U.S. investor holding European stocks earns the stocks' return in euros, then converts that to dollars, and the euro-dollar exchange rate can add to or subtract from the result independently of how the companies did.
A currency-hedged ETF uses forward contracts to cancel out that exchange-rate effect, so your return tracks the foreign assets' local-currency performance with the currency swing removed. An unhedged ETF leaves the currency risk in, so a falling dollar boosts your foreign returns and a rising dollar drags on them. Neither is inherently safer in every situation; they shift where your risk sits.
The Cost: Hedging Is Not Free
Hedging carries a cost. Hedged ETFs typically charge a slightly higher expense ratio than their unhedged twins, and the rolling forward contracts themselves carry an embedded cost or benefit tied to interest-rate differences between the two countries. When your home currency has higher interest rates than the foreign one, hedging can actually add a small carry benefit; when it is lower, hedging drags on returns.
Because of these costs, hedging is generally not worth paying for over very long horizons on equities, where currency moves have historically tended to wash out and the hedging expense compounds against you. The case for hedging is stronger on shorter horizons and on bonds, where currency swings can swamp the modest yield of the underlying holding and turn a stable income asset into a volatile one.
| Factor | Hedged ETF | Unhedged ETF |
|---|---|---|
| Currency exposure | Removed | Fully retained |
| Typical cost | Slightly higher | Lower |
| Short-term volatility | Lower (currency removed) | Higher |
| Long-horizon equities | Cost usually not worth it | Often preferred |
| Foreign bonds | Often preferred | Currency can dominate return |
Equities vs Bonds: Where Hedging Earns Its Keep
For international equities held for decades, most evidence favors leaving the currency unhedged. Currency movements add volatility year to year but have historically been roughly a wash over long stretches, and the unhedged version also gives you a useful diversification benefit: foreign currency often strengthens when your home currency weakens, cushioning the portfolio. Broad unhedged funds like VXUS and VEA are the common default for long-term U.S. investors.
For international bonds, the calculus flips. A foreign government bond might yield a few percent, but the currency it is denominated in can move several percent in a year, so an unhedged foreign bond fund behaves more like a currency bet than a bond. That is why a flagship like BNDX, Vanguard's international bond fund, is currency-hedged by design: hedging lets the bonds behave like bonds rather than like a volatile forex position.
Tip: A useful rule of thumb: leave international stocks unhedged for the long run, and prefer hedged international bonds so currency swings don't overwhelm the modest yield.
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How to Decide for Your Portfolio
Start with your time horizon and the asset class. If you are a long-term equity investor, the simplest and usually cheapest choice is broad unhedged international exposure, accepting the currency wobble in exchange for lower cost and a diversification cushion. If you are investing for a near-term goal in a specific currency, or holding foreign bonds, hedging removes a risk you are not being paid to take.
Be wary of trying to time currencies by switching between hedged and unhedged funds based on a view about where the dollar is heading. Exchange-rate forecasting is notoriously unreliable, and flipping back and forth racks up trading costs and potential taxes. Pick a hedging stance that matches your horizon and asset mix, then leave it alone.
Important: Don't switch between hedged and unhedged funds to bet on currency direction. Exchange rates are extremely hard to forecast, and the trading costs and taxes usually outweigh any edge.
Frequently Asked Questions
Should I hedge currency risk on international stocks?
For long-term equity investors, usually no. Currency moves add short-term volatility but have historically roughly washed out over long horizons, and unhedged exposure provides a diversification cushion when your home currency weakens. Hedging also costs more, so most long-term investors hold broad unhedged international funds like VXUS or VEA.
Why are many international bond ETFs hedged?
Because currency swings can dwarf a bond's modest yield. A foreign bond might yield a few percent while its currency moves several percent in a year, making an unhedged foreign bond fund behave like a currency bet rather than a stable income holding. Funds like BNDX hedge so the bonds behave like bonds, not forex positions.
Does currency hedging cost money?
Yes. Hedged ETFs usually charge a slightly higher expense ratio, and the rolling forward contracts carry an embedded cost or benefit tied to the interest-rate gap between the two countries. When your home currency has higher rates, hedging can add a small carry benefit; when it has lower rates, hedging tends to drag on returns.
Can I switch between hedged and unhedged to time the dollar?
It is rarely worth trying. Currency direction is extremely difficult to forecast, and switching funds incurs trading costs and potential capital-gains taxes that usually outweigh any benefit. A better approach is to choose a hedging stance that fits your horizon and asset mix, then leave it in place.
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Alex Harrington
CFA Level II Candidate, Finance & Economics
Alex Harrington is an independent ETF researcher and personal finance writer with over 8 years of experience analyzing exchange-traded funds. A CFA Level II candidate with a background in economics, Alex has reviewed 800+ ETFs and helped thousands of beginners build their first investment portfolios through clear, jargon-free education.
This content is for educational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Consult a licensed financial advisor before making investment decisions.