Currency Pair
A currency pair is two currencies quoted against each other — EUR/USD, USD/JPY, GBP/INR. The first is the base currency, the second the quote currency, and the price says how many units of the quote currency one unit of the base is worth.
Also called: FX pair
In EUR/USD 1.0850, the euro is the base and the dollar is the quote: one euro buys 1.0850 dollars. Reversing the order reverses the arithmetic, which is why a rate quoted without its pair, in the correct order, is not a rate at all. Market convention fixes which currency comes first for the actively traded pairs, and getting the convention backwards is one of the most common errors in payments pricing spreadsheets.
Pairs are conventionally grouped by how heavily they trade. The majors all involve the US dollar and account for most of global turnover; crosses are pairs quoted directly without going through the dollar; and exotics pair a major with a thinly traded currency. The grouping is about liquidity, and liquidity is what determines the spread a business will actually be quoted.
For a cross-border payments business the practical point is that many pairs are not traded directly at all. A GBP to PKR payment is usually GBP to USD and then USD to PKR, which means two conversions, two spreads and two opportunities for a markup — and a customer comparing a single headline rate will not see the second one.
In practice
Quoting a pair does not tell you it trades as a pair. Where the market routes through the dollar, the customer pays two conversions, and the all-in cost has to be measured against the amount the recipient receives rather than against either leg's advertised rate.
Example
A quote of "USD/COP 4,050" means one US dollar buys 4,050 Colombian pesos. Written as COP/USD it would be roughly 0.000247. Both describe the same market; only one is the convention, and a pricing sheet that mixes the two produces errors of four orders of magnitude.
Commonly confused with
| Term | How it differs |
|---|---|
| Mid-Market Rate | The pair names which two currencies are being exchanged. The mid-market rate is one particular price for that pair — the midpoint, with no margin added. |
| FX Spread | The spread is the gap between buying and selling prices in a pair. The pair is the market; the spread is a property of how liquid it is. |
See also
- Mid-Market RateThe mid-market rate is the midpoint between the price at which a currency pair is being bought and the price at which it is being sold — the rate with no margin added. It is a reference point for pricing, not a rate a customer transacts at.
- FX SpreadStrictly, the FX spread is the bid/ask spread: the gap between the price at which a currency can be bought and the price at which it can be sold at the same moment. It is a property of the market and of liquidity in that pair.
- FX MarkupAn FX markup is the difference between a reference rate — normally the mid-market rate — and the rate actually offered to the customer. It is the provider’s price for the conversion, and on a cross-border transfer it is usually the largest part of the cost.
- Exotic CurrencyAn exotic currency is one that trades thinly — wide spreads, limited market depth, few willing counterparties, and often restrictions on converting or moving it. The label is about liquidity and tradability, not about geography or how unfamiliar the country is.
- Spot RateThe spot rate is the price for exchanging one currency for another for near-immediate settlement. "Immediate" is a convention rather than a fact: standard spot settlement in most currency pairs is two business days after the trade.
- Basis PointA basis point is one hundredth of one percentage point — 0.01%. FX and payments pricing is quoted in basis points because small percentages are easy to misread: 25 basis points is 0.25%, and 100 basis points is 1.00%.