Take a look at the ETF dashboard on this site and count the currencies. Almost every fund — SPY, VTI, QQQ, VXUS, BND, HYG, LQD, TLT, SHY, GLD, VNQ and even the Ireland-listed emerging-markets ETF (EIMI.L) — is priced in US dollars. The UCITS route readers favour (VWRA, CSPX) trades in USD too. Only two funds speak your language: the STI ETF (ES3.SI) and the SGD investment-grade bond ETF (MBH.SI).
Your rent, your grocery bill and your retirement spending are priced in SGD. So every dollar-denominated fund you buy carries a second, quieter position: a currency bet you never explicitly took.
What Currency Risk Actually Is
A USD fund's return to you is two layers stacked together: what the assets did (in US dollars), plus what the dollar did against the Singapore dollar (in your terms). A 6% gain in the S&P 500 with a dollar that fell 3% against the SGD nets you a little under 3%.
That is the layer that makes an identical portfolio behave differently for a Singaporean than for an American. The assets are the same; the currency layer is local.
The Singapore Twist: a Structurally Strong Dollar
Most currency research across Europe and North America says "over long horizons, currencies wash out — the ups and downs roughly cancel." That holds for neutral currencies. The Singapore dollar is not neutral.
Singapore runs its monetary policy through the exchange rate. The Monetary Authority of Singapore (MAS) guides the SGD against a basket of trading-partner currencies inside an undisclosed band, and its historical bias has been to let the dollar appreciate to keep imported inflation down. The result is visible over four decades: USD/SGD sat near 2.31 in 1985 and trades around 1.28 in mid-2026. Those endpoints imply a historical drift of roughly 1–1.5% a year - a description of the period, not a permanent annual forecast or a guaranteed headwind.
It is also current, not ancient history. Recent SGD moves and MAS policy settings can materially change the result from one year to the next, so treat historical currency moves as context rather than a forecast.
Why Unhedged Equity Is Still the Default
If the headwind is real, why not just hedge it away? Because hedging is not free. A currency-hedged fund's result reflects interest-rate differentials, forward-market pricing, basis and fund tracking; a 1–2% annual figure is only an illustration, not a fixed charge. Many long-term investors leave global equities unhedged and consider hedging the bond sleeve, but the appropriate choice depends on the investor's liabilities, horizon and tolerance for currency risk.
There is a second, subtler argument for keeping your equities unhedged: diversification. The US dollar tends to strengthen exactly when global stock markets sell off, which softens the SGD blow at precisely the moments that hurt most. Hedge that away and you have removed one of the few currency positions that might cushion a crash.
Bond Money Is Different
Your bond sleeve is where currency deserves respect — because yields are small. A 5% swing in USD/SGD can eat several years of BND coupons in a single quarter.
For the fixed-income part of a Singapore portfolio, the clean solution is to buy SGD-priced bonds and skip the currency fight entirely: MBH.SI and the ABF Singapore Bond Index Fund (A35) are the natural defaults — both CPFIS-eligible, both priced in your own money. If you hold USD bonds (BND, TLT), you are quietly short the same strong-Singdollar policy that MAS is running.
Practical Rules
- Don't time the Singapore dollar. MAS sets the rate; the market debates it daily. You will not out-guess either.
- Do not treat hedging as automatic. Many investors leave long-term equity unhedged, while SGD investors often consider hedging the bond sleeve; compare the objective and cost rather than following a universal rule.
- Consider keeping bonds local. SGD bonds (MBH.SI, A35) can remove FX noise from the bond sleeve, but fund duration, credit risk and liquidity still matter.
- Convert thoughtfully, not often. Every conversion carries a spread — the broker post covers the 0.1–0.5% range. Convert once, buy in the same currency, hold.
- Know your dashboard. Nearly every fund priced in USD, and just two in SGD, is not a mistake; it simply reflects where the world's investable assets live. It just should not be a surprise.
The Takeaway
Currency risk on long-term equity is mostly a story you read about rather than a cost you can cheaply remove. The two places it genuinely bites are bonds — solved by buying SGD funds — and frequent conversions — solved by not converting often. Leave the rest alone, and let the assets do the work.