Currency-Hedged vs Unhedged ETFs: What Every Canadian Investor Should Know
| Scenario | Underlying index (USD) | CAD move vs USD | Your actual CAD return |
|---|---|---|---|
| CAD appreciates | +10% | CAD up 5% vs USD | ~5%, not 10% |
| CAD depreciates | +10% | CAD down vs USD | Amplified beyond 10% (local performance exceeded) |
Same 10% USD gain, very different CAD outcome depending on which way the exchange rate moves.
How Exchange Rates Affect Your Returns
Picture this: you hold a Canadian-listed ETF that owns US stocks. The underlying index rises 10% in USD over the year โ but the Canadian dollar also appreciates 5% against the USD over that same period. Your actual CAD return ends up around 5%, not 10%. Flip the scenario: if the CAD depreciates, your CAD return is amplified beyond the local performance. This dynamic is called currency risk or foreign exchange risk. For Canadian investors, the dominant exposure is usually the US dollar, since most global equity ETFs are heavily weighted toward American companies. But the euro, Japanese yen, and British pound also factor in depending on the fund's composition. Currency moves can act as either a tailwind or a headwind โ and you often can't predict which.
Hedged ETFs: Neutralizing Currency Swings
A currency-hedged ETF uses forward contracts or currency swaps to cancel out the effect of exchange rate movements. In practice, the fund manager continuously sells foreign currency forward so that the CAD value of the fund reflects almost exclusively the performance of the underlying assets, not the currency. Asset managers like iShares (BlackRock) Canada and Vanguard Canada offer hedged versions of many popular ETFs โ often identifiable by the label "CAD-Hedged" in the fund name. For instance, XSP (iShares Core S&P 500 Index ETF CAD-Hedged) is the hedged counterpart to an unhedged S&P 500 exposure. This hedging comes at a cost: the management expense ratio (MER) of a hedged ETF is typically a little higher than its unhedged equivalent, and the ongoing management of forward contracts introduces a slight tracking error relative to the benchmark index.
Unhedged ETFs: Letting Currency Ride
An unhedged ETF gives you full exposure to both the underlying assets and the foreign currencies those assets are priced in. If you hold an unhedged global equity ETF, your CAD return will reflect both the performance of foreign markets and the movement of the corresponding currencies. For equities, many researchers and fund managers โ including teams at Vanguard โ argue that currency risk for global stocks tends to fade over long time horizons: currency swings partially cancel out over 10-, 20-, or 30-year periods. Furthermore, many large multinational companies held in these funds manage their own currency exposure operationally, which indirectly mutes some of the risk. Buying the US-listed version of an ETF (e.g., VTI in USD on the NYSE) does not eliminate currency risk for a Canadian investor โ the CAD value of your holdings will still fluctuate with the USD/CAD rate. The difference is that you settle transactions in USD, which can be advantageous if you have income or expenses in US dollars.
Lean unhedged โ global equities
- Hedging costs money without a clearly measurable long-run benefit
- Short-term currency volatility is real, but tends to average out over time
- Many large multinationals already manage their own currency exposure operationally
Lean hedged โ foreign bonds
- Bonds are held for stability and predictability in a portfolio
- Currency risk can be a large share of a foreign bond's total volatility
- That defeats the bond's purpose as a ballast, so many investors and institutional managers prefer hedged bond ETFs
It isn't an absolute rule, but it's a widely used heuristic among investors and fund managers.
Why the Right Answer Differs by Asset Class
The equity vs. bond distinction matters enormously here. For equities, the prevailing view among passive index fund managers is that hedging costs money without delivering a clearly measurable long-run benefit โ especially in a globally diversified portfolio. Short-term currency volatility is real, but it tends to average out. For bonds, the logic flips: bonds are typically held for stability and predictability in a portfolio. Currency risk can represent a large share of the total volatility of a foreign bond, which defeats its purpose as a ballast. That's why many investors โ and several institutional managers โ prefer currency-hedged bond ETFs when buying foreign fixed income. In short: hedging is often justified for bonds, less compelling for long-run equity holdings. See our comparison of XEQT vs VEQT vs VFV for concrete examples of globally diversified equity ETFs.
Short horizon (3 to 5 years)
- Currency effects can be substantial
- A 10% CAD appreciation can meaningfully cut your US equity return in a single year, even if underlying assets performed well
Long horizon (20 to 30 years)
- Currency effects tend to diminish over time
- Short-term currency volatility is real, but it tends to average out
Your time horizon is one of the practical questions the article suggests asking before choosing hedged vs unhedged.
How to Choose: Practical Questions to Ask Yourself
Before deciding between a hedged and unhedged ETF, consider these questions:
- What is your time horizon? Over 20 or 30 years, currency effects tend to diminish. Over 3 to 5 years, they can be substantial.
- How much short-term volatility can you tolerate? A 10% CAD appreciation can meaningfully cut your US equity return in a single year โ even if your underlying assets performed well.
- Which asset class are you buying? Foreign bonds deserve closer attention to currency risk. Globally diversified equities, less so over the long run.
- What is the actual cost of hedging? Compare the MERs of both versions. The annual cost difference may seem small, but it compounds over decades.
- Do you have foreign-currency expenses? If you plan to spend in USD โ retiring in the US, frequent travel โ a natural USD exposure in your portfolio can itself act as a hedge against your future spending needs.
There is no universal answer. The right choice depends on your personal situation, time horizon, and financial goals โ which is exactly why this article is educational only and does not constitute financial advice. Consult a licensed financial professional for recommendations tailored to your circumstances.
Frequently asked questions
Is a hedged ETF always safer?
Not necessarily. Hedging removes currency risk but adds costs and minor tracking error. For long-horizon equity investors, that cost can outweigh the benefit of reducing currency volatility.
Why do hedged ETFs have a higher MER?
Hedging requires the ongoing purchase and rollover of currency forward contracts, which generates additional costs that the fund manager passes through in the MER and trading costs.
If I buy a US-listed ETF in USD, am I protected from currency risk?
No. Even if you buy and sell in USD, the CAD value of your holdings still fluctuates with the CAD/USD exchange rate. You are exposed to currency risk โ you're just transacting in a different currency.
What's the general rule of thumb for bonds vs equities?
Many investors and fund managers hedge their foreign bonds (to preserve their stabilizing role in the portfolio) but leave global equities unhedged (because the cost of hedging often exceeds the benefit over the long term). It isn't an absolute rule, but it is a widely used heuristic.
Sources & references
Educational content; verify figures with official sources before acting.