# Questions tagged [binary-options]

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### Computation of limit

In Delta of binary option, I do not see how to prove that the limit of $\partial C_t/\partial S_t$ is equal to $+\infty$ as $t \rightarrow T$. Can someone help ?
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### What is the shape of the delta graph of the binary option?

I was wondering what the shape of the graph of the delta or the binary option would be.
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### Pricing binary options with kernel density estimation

Suppose I have a large enough set of prices of an asset, from which I can extract the following function: $f:T\to\mathcal{D}$, where $T$ is a fixed finite set of time intervals (say, 1 minute, 2 ...
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### Relation between one touch and binary option

Is there a relation between the price of a one touch option and the price of a binary option? By one touch option, I mean an option that pays off a fixed amount if the price of the underlying is ...
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### Close prices discrepancy between binary.com, google, yahoo and wsj?

My algorithm needs to extract the forex data of the last 48h (hourly) to get the last close price and to calculate the MACD. I use Google Finance api becouse is the only which provides free forex ...
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### Pricing Secured Barrier Call

A European barrier call with barrier $B = 50$, expiration $T = 31$, and strike $K = 33$ costs $12$. The investor is interested in a product that, unlike this barrier call, offers some protection for ...