What is it worth for your bill?
€1.00
€0.90
Convert the full $110 at the later rate. The extra dollars do not make up for each dollar buying fewer euros.
One dollar buys €1.00 at the start and €0.90 at the end. No cash flows or income payments; fees and taxes excluded.
Follow the conversion
Start: $100 × €1.00 per dollar = €100. End: $110 × €0.90 = €99, a €1 loss on €100.
The changes multiply: 1.10 × 0.90 = 0.99. Adding +10% and −10% misses the changed dollar base. Favourable exchange rates can improve the result instead; these figures predict neither return.
Measure funding for a euro bill in euros. The dollar return leaves the conversion out.
Different listings can lead to the same assets.
Confirm that both listings represent that same class. Buying its euro listing changes the transaction currency; it does not turn the investments into euro assets or add a hedge.
Five currency labels to distinguish
| Label | Meaning |
|---|---|
| Spending currency | What you expect to use for a goal. |
| Trading currency | The exchange listing’s quotation and settlement currency. |
| Fund base currency | Accounting and valuation currency; a class can have its own denomination. |
| Underlying exposure | Exchange-rate effects on assets, payments and businesses. |
| Hedge currency | The currency towards which the policy reduces specified exposure. |
Listings of one class can differ in conversion costs and spreads or dealing arrangements while owning the same portfolio. Base currency is an accounting choice, not a hedge.
For an ordinary bond, inspect the currency of promised payments. A company can earn, pay suppliers and borrow in several currencies; its listing or headquarters cannot capture them all.
A hedge covers a particular exposure.
Financial contracts aim to reduce specified exchange-rate effects, including adverse losses and favourable gains. They cannot eliminate every currency effect.
Scope, costs and interest-rate differences
Check the exact class’s documents. A share-class hedge against the fund’s base currency can cover a different exposure from hedging underlying assets’ currencies. Implementation can leave gaps; company business exposures remain.
Transaction costs and interest-rate differences, reflected in contracts such as FX forwards, affect returns. The rate-difference component can add or subtract: it is neither an exchange-rate forecast nor guaranteed extra return. The whole effect is not a fixed insurance fee.
Reading a fund’s policy does not require maintaining currency contracts yourself.
Put currency beside each spending goal.
Exchange-rate moves can undermine a bond allocation’s intended stability for spending in a few years. Long-term shares have a different role and substantial business risk. No hedge rule fits every goal or asset class; currency matching still leaves inflation risk.
Several goals or a possible move
Record material commitments by date and currency: retirement at home and tuition abroad may differ. A single reporting currency can hide a particular payment mismatch.
For a possible move, use likely spending and revisit when plans clarify; daily exchange-rate predictions cannot decide where you will live. Compare each goal with actual exposure and hedge policy, not just the currency on the account screen.