Hedged vs Unhedged ETF: Which Currency Share Class Should Singapore Investors Choose?
A hedged ETF uses financial contracts to offset the currency exchange rate risk between the fund’s underlying assets and its listed currency, so returns mainly reflect the assets’ performance, while an unhedged ETF leaves that currency exposure in place, meaning returns are affected by both the assets and the exchange rate.
Not financial advice. All figures for educational reference only. Data as at July 2026. Last updated: July 2026.
Key Takeaways
- Currency hedging matters most when an ETF’s underlying assets are in one currency (e.g. USD for US stocks) but the ETF itself is bought and listed in another (e.g. SGD or GBP).
- Hedged share classes typically cost 0.05%–0.30% more in annual expense ratio than the unhedged version of the same ETF, due to the ongoing cost of rolling currency forward contracts.
- Popular examples for Singapore investors include CSPX (unhedged, USD-denominated S&P 500 ETF) versus SGD-hedged share classes offered by some fund providers.
- Hedging removes currency risk but does not remove currency cost entirely — interest rate differentials between currencies can make hedging a net cost or, less commonly, a net benefit.
- Most long-term Singapore equity investors accept unhedged currency exposure, since currency effects tend to average out over long holding periods and hedging adds an ongoing cost.
What Is Currency Hedging in ETFs?
When a Singapore investor buys a US-listed ETF tracking the S&P 500, they are exposed to two separate return drivers: the performance of the underlying US stocks, and the movement of the USD/SGD exchange rate over the holding period. If the US stocks rise 10% but the USD weakens 5% against the SGD, the investor’s SGD-denominated return is closer to 5%, not 10%.
A currency-hedged ETF share class attempts to strip out that second variable. The fund manager enters into currency forward or futures contracts that offset gains or losses from exchange rate movements, so the ETF’s return should track the underlying assets’ local-currency performance much more closely, regardless of what the exchange rate does.
An unhedged ETF simply holds the underlying assets in their native currency without any offsetting contracts, so the investor’s return is a combination of the asset’s performance and the currency’s movement relative to whatever currency the investor is measuring returns in.
How Does Hedging Work for Singapore ETF Investors?
Most globally popular ETFs used by Singapore investors, such as US-domiciled S&P 500 or world equity ETFs, are unhedged by default and denominated in USD. Some fund providers (particularly UCITS-domiciled ETFs) offer both hedged and unhedged share classes of the same underlying fund, letting investors choose.
| Feature | Unhedged ETF | Hedged ETF |
|---|---|---|
| Currency risk | Fully exposed to exchange rate movement | Largely offset via forward contracts |
| Expense ratio | Lower (no hedging cost) | Typically 0.05%–0.30% higher |
| Tracking to local-currency index return | Diverges with currency moves | Tracks more closely to local-currency return |
| Best suited for | Long-term investors comfortable with currency swings | Investors wanting pure asset-class exposure without FX noise |
| Interest rate differential effect | None directly | Hedging cost/benefit driven by rate gap between currencies |
The cost of hedging is influenced by the interest rate differential between the two currencies involved. When the currency you’re hedging into (e.g. SGD) has a lower interest rate than the currency being hedged (e.g. USD), the hedge typically carries an ongoing cost, which is layered on top of the ETF’s stated expense ratio via the forward contract’s roll cost.
Source: Fund provider (e.g. UCITS ETF issuers) factsheets and prospectuses on hedged/unhedged share classes, 2026.
Hedged vs Unhedged ETF Example
An investor puts S$20,000 into an unhedged, USD-denominated S&P 500 ETF. Over one year, the S&P 500 rises 12% in USD terms, but the USD weakens 4% against the SGD. Her SGD return is approximately 12% − 4% ≈ 8%, rather than the full 12% the index delivered in USD.
Had she instead bought a SGD-hedged share class of a similar S&P 500 tracking fund, with a hedging cost drag of roughly 0.5% for the year (reflecting the USD-SGD rate differential and hedging costs), her return would be closer to 12% − 0.5% ≈ 11.5%, much closer to the index’s local-currency return, regardless of what the exchange rate did.
In a year where the USD instead strengthened against the SGD, the unhedged version would have benefited from that currency tailwind, while the hedged version would have missed out on it.
Advantages of Hedged and Unhedged ETFs
Unhedged advantage — lower ongoing cost. Without a hedging mechanism, expense ratios are lower, and there’s no drag from rolling forward contracts.
Unhedged advantage — potential currency tailwind. If the foreign currency strengthens against SGD over your holding period, you benefit from that on top of the asset’s performance.
Hedged advantage — cleaner asset exposure. If your goal is pure exposure to an index’s local-currency performance without currency noise, a hedged share class delivers a more predictable, apples-to-apples return.
Hedged advantage — useful for short/medium holding periods. Currency swings can be sharp and unpredictable over shorter timeframes, so hedging can reduce volatility if you have a defined, nearer-term investment horizon.
Risks and Limitations
Hedging is not free. The ongoing cost of rolling currency contracts, often 0.05%–0.30% or more annually, compounds over long holding periods and can meaningfully drag on returns.
Unhedged exposure can cut both ways. Currency moves are unpredictable — an unhedged position can just as easily hurt returns as help them, depending on the direction of the exchange rate.
Hedges are rarely perfect. Currency hedging typically offsets most, not all, of the currency exposure, and can introduce tracking error relative to the fund’s local-currency benchmark.
Fewer hedged options may be listed or liquid. Hedged share classes are less common and can have lower trading volumes or wider bid-ask spreads than their unhedged counterparts, particularly on SGX.
The Bottom Line
For most Singapore investors with a long time horizon, staying unhedged is the simpler and often cheaper default, since currency effects tend to wash out over decades — but hedged share classes are worth considering for shorter holding periods, large lump-sum allocations, or investors who specifically want to isolate asset performance from currency swings.
Frequently Asked Questions
What is the difference between a hedged and unhedged ETF?
A hedged ETF uses currency contracts to offset exchange rate movements between the fund’s assets and its listing currency, so returns mainly reflect the underlying assets. An unhedged ETF leaves that currency exposure in place.
Do hedged ETFs cost more than unhedged ETFs?
Yes, typically. Hedged share classes usually carry a higher expense ratio, often 0.05% to 0.30% more per year, to cover the ongoing cost of rolling currency forward contracts.
Should Singapore investors choose hedged or unhedged ETFs?
It depends on your time horizon and goals. Many long-term investors stay unhedged since currency effects tend to average out over long periods, while hedged share classes suit investors who want returns closer to the local-currency index performance or have a shorter holding period.
Can currency hedging ever benefit an ETF's returns?
Yes, if the currency being hedged into has a higher interest rate than the currency being hedged away from, hedging can sometimes add a small return benefit rather than a cost, though this varies over time as interest rate differentials change.
Is CSPX a hedged or unhedged ETF?
CSPX, a popular USD-denominated S&P 500 UCITS ETF, is unhedged — it does not use currency contracts to offset movements between the USD and other currencies.