Option pricing uses the Garman-Kohlhagen model (extension of Black-Scholes for FX), which accounts for both domestic and foreign risk-free rates. Forward rates use covered interest parity: F = S × e^((r_d − r_f) × T).
Greeks computed: Delta (rate sensitivity), Gamma (delta change per 1% spot move), Theta (time decay per day), Vega (sensitivity to 1% vol change).
Payoff diagrams show P&L at expiry across a ±15% spot range. Hedge effectiveness is the ratio of hedged position variance to unhedged variance reduction.
- Garman, M.B. & Kohlhagen, S.W. (1983) — Foreign currency option values. Journal of International Money and Finance
- ISDA — FX Derivatives Product Definitions (2002/2012)
- BIS Triennial Central Bank Survey 2022 — OTC FX derivatives outstanding