# Questions tagged [caplet]

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### Caplet “in arrears” pricing formula

The forward Libor rate $L(t,t_1,t_2)$, with $0 \leq t \leq t_1$, must be a martingale under the T-forward measure associated with the zero coupon bond $P(t,t_2)$ that matures at time $t_2$. Pricing a ...
1answer
140 views

### Forward starting zero-coupon bonds

We trivially have that: $$\frac{Z(t_0,t_1)}{Z(t_0,t_2)}=1+\tau L(t_0,t_1,t_2)$$ Where $L(t_0,t_1,t_2)$ is the forward Libor between $t_1$ and $t_2$, as of $t_0$. Simply inverting this relationship ...
1answer
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### What is the correct implied volatility to use when valuing an FRA option?

To my understanding the value of an FRA option is identical to that of a caplet of equal maturity, strike and tenor. A volatility surface of cap implied volatilities is generally available, and from ...
1answer
57 views

### What is the correct volatility to use for inverting Black76?

I'm using VCUB on Bloomberg for ATM cap volatilities and have noticed there are a few "flavors" of volatilities. I would like simply use ATM flat vols to bootstrap forward volatilities from ...
1answer
41 views

### Quantlib error initializing CapFloor C++ Class

I'd like to use QuantLib as a C++ library to price interest rate derivatives, in particular Cap&Floors. To semplify things a little, let's say I have a vector of EURLibor1Y rates for different ...
0answers
35 views

### Where can (current) interest rate cap prices be found?

I'm somewhat new to interest rate models and am interested in obtaining ATM cap prices and volatilities for calibration purposes (Black-Derman-Toy, Hull-White, etc.). Ideally, this would enable me to ...
0answers
21 views

### Where to find Caps/Floor historical data?

I'm trying to calibrate the Lognormal Forward Libor Model to market data, in order to calculate market implied volatilities. However, I'm having some troubles finding any Cap/Floor historic price. Not ...