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Search options not deleted user 40873

A contract that gives the owner the right, but not the obligation, to buy or sell a security at a fixed price in the future.

4 votes

How to normalise options? Normalise strike price, premium, tenors

This makes it difficult to compare option quotes accross strikes and tenors and certainly makes it impossible to compare the price of options accross different underlying stocks. … For these reasons, the options price are often quoted in terms of (Black-Scholes) implied volatilities. …
raptor22's user avatar
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1 vote
0 answers
126 views

Procedure of model calibration

Say that your end goal is to price an equity exotic derivative under both Heston and the local volatility models (Black Scholes model with vola dependent on strike and underlying level). Do the follow …
raptor22's user avatar
  • 628
8 votes
1 answer
3k views

Implied interest rate using put-call parity

Here is an example to illustrate based on S&P500 options. Here I assumed a swap zero rate curve to use in the put-call parity formula. I interpolated this curve using cubic splines. …
raptor22's user avatar
  • 628
2 votes
1 answer
289 views

Arbitrage-free IV surface definition vs. real arbitrage process

In the literature, it seems that conditions for arbitrage are defined in a way that assumes that options can be traded at the same price for buying and selling (i.e. no bid-ask spread). …
raptor22's user avatar
  • 628
3 votes
0 answers
189 views

How to shock the IV surface w.r.t VIX and keep AOA

I have to compute the sensitivity of a set of option prices on a single sotck (range of tenor is over the whole surface) to an increase of 100% in the VIX.. and I am trying to get to the most reasonab …
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  • 628