Methodologies / fx-forward-cip
Covered Interest Parity Forward
Theoretical outright forward from spot and simple interest rates with pair day-count conventions.
Formula
F = S × (1 + r_quote×τ_q) / (1 + r_base×τ_b)
Assumptions
- S and F are quote per 1 base.
- Rates are simple period rates.
- τ from ACT/360 or ACT/365 calendar days.
Limitations
- No holiday calendar or modified following in Phase 1.
- Ignores basis, credit, and liquidity premia.