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Have a question regarding regular option pricing.

In the standard Black-Scholes model, with interest r and volatility $\sigma$. Determine the arbitrage free price at t of an option which at $T>t$ pays the holder the amount of 100 USD dollar if the stock price is between 50 and 100 USD. I.e. option with pricing function:

$\phi = 100 $ if $50<S_T<100$ else nothing.

A thorough walk through in how to calculate this price would be highly appreciated.

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1 Answer 1

I am too lazy to write up a longer answer and I do not know how to write LateX, so here you go, Pricing Formulas for Binary Range Option

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we should really create a B&S realted Q&A ... –  Probilitator May 23 at 9:49
    
is there one in existence? –  Matt Wolf May 23 at 9:52
    
there must be one somewhere. I think I will create a question asking people to contribute their favourite sources. This question and the answers can be than used as a referrer for the type of question you just answered :) –  Probilitator May 23 at 9:55

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