Why base currency matters
Confusing trading and reporting meanings causes position and return errors.
How it is applied
Systems record both pair convention and reporting currency.
Portfolio example
In EUR/USD, euro is the trading base. A yen portfolio can still report the position in yen.
How to interpret it
A rising pair means the trading base strengthened against quote.
Limitations and common misconceptions
Market conventions and portfolio usage differ, so context must be explicit.
Sources and further reading
- Triennial Central Bank Survey of Foreign Exchange and OTC Derivatives MarketsBank for International Settlements
- Exchange RatesInternational Monetary Fund
- Currency Exchange RatesCFA Institute