Black76 Floorlet Price
Price an interest rate floorlet using the Black76 model. A floorlet is a put option on an interest rate that pays off when the reference rate falls below the strike rate.
Payoff: max(K - L, 0) × τ × N × DF
Use Cases:
- Price interest rate floors (sum of floorlets)
- Hedge against falling interest rates
- Value lender’s protection against rate decreases
- Construct floating rate collars (cap + floor)
Tier: Standard (2 credits/request) [Tier: PRO, Credits: 5]
Authorizations
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Body
Forward interest rate for the period (decimal format)
0.03
Strike rate of the caplet/floorlet (decimal format)
0.035
Discount factor to present value
0.95
Annualized volatility of the forward rate (decimal format)
0.2
Start time of the accrual period in years
1
End time of the accrual period in years
1.25
Notional amount
1000000
