What is Currency Risk? (Plain English Definition)
Definition: Currency risk is the potential for investment returns to be affected by changes in exchange rates when investing in foreign assets.
Currency Risk Explained Simply
Currency risk, also called exchange rate risk, arises when you invest in assets denominated in a foreign currency. If you buy an international ETF that holds European stocks priced in euros, your returns depend not only on how those stocks perform but also on how the euro moves against the U.S. dollar.
If the euro strengthens against the dollar, your international returns get a boost when converted back to dollars. If the euro weakens, your returns are reduced. For example, if a European stock ETF gains 10% in euro terms but the euro falls 5% against the dollar, your return in dollar terms is roughly 5% -- the currency change ate into your gains.
Some international ETFs offer currency-hedged versions that use derivatives to neutralize the impact of currency movements. These funds aim to deliver the local market return without currency effects. However, hedging has costs that slightly reduce returns, and currency movements can sometimes work in your favor. Most long-term investors accept unhedged currency exposure as part of the diversification benefit of international investing.
Currency Risk Example
You invest $10,000 in an unhedged international stock ETF. The underlying stocks gain 12% in local currency terms. But over the same period, the U.S. dollar strengthens by 4% against the foreign currencies. Your return in U.S. dollars is approximately 8% (12% minus the 4% currency headwind), giving you about $10,800 instead of the $11,200 you would have earned without the currency impact. That $400 difference is the cost of currency risk in this case.
Why Currency Risk Matters for ETF Investors
Currency risk is an unavoidable consideration for ETF investors who hold international funds. Since international diversification is important for most portfolios, understanding how currency movements affect your returns helps set realistic expectations. For ETF investors, the key decision is whether to use hedged or unhedged international ETFs. Most financial advisors suggest unhedged funds for long-term investors because currency effects tend to average out over time and add a layer of diversification. However, during periods of dollar strength, unhedged international funds can underperform. Being aware of this dynamic helps you avoid abandoning international ETFs during periods when the dollar is strong.
Currency Risk vs Emerging Market
| Currency Risk | Emerging Market |
|---|---|
| Currency risk is the potential for investment returns to be affected by changes in exchange rates when investing in foreign assets. | See full definition of Emerging Market |
While currency risk and emerging market are related concepts, they serve different purposes in the world of ETF investing. Understanding both terms helps you make more informed decisions about which funds to include in your portfolio and how to evaluate their performance.
Related Terms
Deepen your understanding of ETF investing by exploring these related concepts:
Emerging Market
An emerging market is a country with a developing economy that is becoming more engaged with global markets, offering higher growth potential but also greater risk.
Diversification
Diversification is the strategy of spreading investments across different assets to reduce risk, based on the principle of not putting all your eggs in one basket.
Hedge
A hedge is an investment made to reduce the risk of adverse price movements in another investment, acting as a form of financial insurance.
Risk Tolerance
Risk tolerance is the degree of variability in investment returns that an investor is willing and able to withstand.
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