Desc: Implementation with a Jupyter Notebook of the VIX index modelization provided in its CBOE white paper, which you can browse here:

https://www.cboe.com/micro/vix/vixwhite.pdf

Packages necessary to run the script:

datetime, pandas, numpy, matplotlib, math, re, requests, xml.etree.ElementTree scipy, yahoo_fin

Disclaimer: The use of the yahoo_fin module can lead to some issue when running outside of market hours as yahoo may sometimes set the bid and ask value of options to 0 (happened on June 6th, 2019)

Update on June 8th, 2019:

1. Updated function comments
2. Updated how near- and next-term Fridays are calculated
3. Updated markdowns for: pronounciation, punctuation, missing information
4. Patched the VIX formula: some days could yield a negative sigma square
5. Updated the README.md to reflect changes

Update on July 25th, 2019:

1. Updated how near- and next-term Fridays are calculated
2. Patched the VIX formula: some data retrievals could yield uncomputable data (i.e. "-")
3. Updated the README.md to reflect changes