Currency Pair Quant Interview Guide
Currency pair quant interview guide for base currency, quote currency, price meaning, returns, crosses, examples, and mistakes.
Candidates learning FX notation and currency return conventions.
Currency pairs have direction
In a currency pair, the base currency is priced in units of the quote currency. A move up means the base currency appreciates against the quote currency.
Returns need a home currency
The same FX move can mean gain or loss depending on which currency is the investor base or liability. Always define the perspective.
Concrete example
If USD/JPY rises from 150 to 153, one dollar buys more yen. That is dollar strength versus yen under the usual quotation.
Cross rates connect pairs
Pairs can imply cross rates through shared currencies, but bid-ask spreads and execution costs determine whether an apparent discrepancy is tradable.
Common mistakes
Candidates often say the wrong currency strengthened. Slow down and translate the quote into plain language before calculating.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.