I am trying to price a Cap with Quantlib in Python. I have the following lists given: dates_3M starting at ql.Date(25,11,2019) rates_3M dates_ois starting at ql.Date(25,11,2019) rates_ois My code so far looks like this: ref_date = ql.Date(25,11,2019) calendar = ql.TARGET() curve_ois = ql.ZeroCurve(dates_ois, rates_ois, ql.Actual360(), calendar, ql.Linear(), ql.Compounded, ql.Annual) curve_ois_handle = ql.YieldTermStructureHandle(curve_ois) curve_3M = ql.ZeroCurve(dates_3M, rates_3M, ql.Actual360(), calendar, ql.Linear(), ql.Compounded, ql.Annual) curve_3M_handle = ql.YieldTermStructureHandle(curve_3M) startDate = ref_date + 2 endDate = calendar.advance(ref_date, ql.Period('72M') schedule = ql.Schedule(startDate, endDate, ql.Period(ql.Quarterly), calendar, ql.ModifiedFollowing, ql.ModifiedFollowing, ql.DateGeneration.Forward, False) nom = 1000000 capRate = 0.03 cap = ql.Cap(ql.IborLeg([nominal], schedule, ql.Euribor3M(curve_3M_handle)), [capRate]) engine = ql.BachelierCapFloorEngine(curve_ois_handle, ql.QuoteHandle(ql.SimpleQuote(0.3439)) cap.setPricingEngine(engine) print(cap.NPV()) I get the error: "Missing Euribor3M Actual/360 fixing for February 25th, 2025." My Euribor Curve starts with the reference date 25.11.2025 and goes until 27.11.2079. In the beginning I have a data point every month but from 2022 only once a year. I got 28.11.2022, 27.11.2023, 27.11.2024, 27.11.2025, ... The cap I am trying to price starts at reference_date + 2 days and goes for 72 Months. So it should end in November 2025. However, the missing fixing is in February 2025. Continue reading...