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Python for Finance

Python for Finance

By : Yuxing Yan
3.9 (22)
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Python for Finance

Python for Finance

3.9 (22)
By: Yuxing Yan

Overview of this book

A hands-on guide with easy-to-follow examples to help you learn about option theory, quantitative finance, financial modeling, and time series using Python. Python for Finance is perfect for graduate students, practitioners, and application developers who wish to learn how to utilize Python to handle their financial needs. Basic knowledge of Python will be helpful but knowledge of programming is necessary.
Table of Contents (14 chapters)
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5. Introduction to Modules
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13
Index
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Using keyboard commands to stop an infinitive loop

Sometimes, because of carelessness or other reasons, we might end up with an infinitive loop (refer to the following program). Our original intention is to print just four numbers ranging from one to four. However, since we forgot to add 1 to the variable i after each printing, the exit condition will never be satisfied, that is, it leads to an infinitive loop. For such cases, we could use Ctrl + C or Ctrl + Enter to stop such an infinitive loop:

i=1
While i<5:
    Print i
>>>

If these commands do not work, then use Ctrl + Alt + Del to launch the Task Manager, choose Python, and then click on End Task.

Estimating implied volatility by using a while loop

This time, we use the Black-Scholes-Merton put option model and a while loop to estimate the implied volatility. First, we present the put option model as follows:

def bs_put(S,X,T,rf,sigma):
    from scipy import log,exp,sqrt,stats
    d1=(log(S/X)+(rf+sigma*sigma/2.)*T)/(sigma...

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