Questions tagged [cap]
The cap tag has no usage guidance.
15 questions
0
votes
0
answers
41
views
The problem of inaccurate valuation of cap by different parameters
My question is that I used two different sets of valuation parameters, but both used December 29, 2023 as the valuation date. One set of valuation parameters is from October 3, 2024 to October 3, 2029,...
2
votes
1
answer
482
views
Python Quantlib for the calibration of interest rate caps
I am trying to calibrate the G2++ model to interest rate caps using the Quantlib library in Python.
I have the problem that my optimization always stops with the starting values. So probably either my ...
2
votes
0
answers
91
views
ATM cap prices in Vasicek model (Filipovic)
I am trying to replicate the ATM cap prices in table 7.1 (see bottom of this post) from Filipovic's book "Term Structure Models - A Graduate Course" which assume the Vasicek model and uses ...
0
votes
0
answers
513
views
How to price an inflation caplet/floorlet using Bachelier Formula?
I am trying to recalculate the prices of inflation cap in order to calibrate a SABR model.
I have this table which gives me the normal volatilities values in % for the different strikes and different ...
3
votes
0
answers
144
views
Which expiry interpolation method for caplet/floorlet surfaces?
I want to bootstrap an (implied volatility) caplet/floorlet surface from quoted cap/floor volatilities on a fixed strike grid. I'm thinking about either using a left-continuous or a linear ...
1
vote
1
answer
227
views
Quantlib - bond with capped coupons
Using QuantLib I want to price a Floating rate bond whose coupons are capped at some rate.
I understand I could price the coupon caps separately and then add that to a zero-bond.
However, I've noticed ...
0
votes
0
answers
180
views
LIBOR-in-arrears swap
Let's say we have a situation where all 12-month LIBOR forward rates at 8% per annum with annual compounding. All cap volatilities are 16%. Estimates the difference between the way a sophisticated ...
0
votes
1
answer
480
views
Should one calibrate SABR model on caps or caplets?
I want to build a volatility surface for caps on a 3M index implied from SABR model. I have a set of cap normal volatilities for a range of strikes (4%, 6%, 8%, 10% and ATM) and maturities (1, 2, 3, 4 ...
1
vote
1
answer
1k
views
How to build a volatility surface for caps from the SABR model?
My end goal is to build a volatility surface for caps. It's well known that SABR model has Hagan approximation formulas for log-normal and normal implied volatilities of options, e.g. caplets, ...
4
votes
0
answers
298
views
IR Cap Forward Premium
A well known broker quotes cap/floors as spot premium for ATM straddles but forward premium for the skew, given that the difference between spot premium and forward premium is that the option is not ...
1
vote
0
answers
540
views
Greeks of caps,floors and swaptions
I will have an interview for a junior position as interest rates volatility trader.
I would like ask you some questions about greeks of caps floors and swaptions.
Are Caps vega positive? Are floors ...
0
votes
1
answer
995
views
Delta and vega sensitivities for Cap
I have a task to do but it is very difficult..
I have to calculate the:
Delta Sensitivity analytically, that is the first derivative of caplet price wrt the forward rate, using the black model to ...
1
vote
2
answers
2k
views
What are "greeks" in general for non-standard options (swaptions, capfloors, etc)
I know what greeks are for standard options: just take the derivative with respect to some parameter, like spot, time, rate, etc.
But how does one calculate greeks for swaptions and capfloors? I was ...
0
votes
0
answers
141
views
Is the implied volatility different for forward starting caps?
Suppose we know (from looking at an available volatility surface) the implied volatility (flat volatility) of a cap with a maturity of 10 years and strike of 1%. This would correspond to a cap that's ...
1
vote
1
answer
664
views
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 ...