The tag has no wiki summary.

learn more… | top users | synonyms

4
votes
0answers
57 views

“Extract” the density of the underlying, given the implied volatility “surface”

Suppose given implied volatility quotations $\widehat{\sigma}(T_i,K_j)$ of call options on an underlying $S$ for various expiries $T_i$'s and strikes $K_j$'s. I am interested in the following problem ...
2
votes
4answers
226 views

Copulas simply explained

I try to understand the basic idea of copulas, however I am still struggling and hope that someone can help me. I understood that in general a copula is a function which links several marginal ...
0
votes
0answers
31 views

Calculation of physical and risk neutral density using index options

I am asking professionals for a help. There have already been the post Data Selection for Empirical Pricing Kernel Estimation (Stochastic Discount Factor) from Finance_Newbie. But I am wondering ...
0
votes
1answer
27 views

y-axis unity of density probability function

What is the unity/interpretation of the y-axis of a density distribution function? The X-axis is the values of the random variable, the area is the probabilty what about the y-axis ?
2
votes
1answer
262 views

Implied probability density (Question 2 - Applications and Interpretation)

Using the second derivative of the Call-Option-Price one can try to recover the pricing density. Formally: Assuming a constant interst rate $r$ and also not making any assumptions on the model ...