OA research:

Volatility calculator:
http://www.cboe.com/framed/IVolframed.aspx?content=http%3a%2f%2fcboe.ivolatility.com%2fcalc%2findex.j%3fcontract%3d07502EC4-4AB7-4103-97DC-3DF250F3F4E7&sectionName=SEC_TRADING_TOOLS&title=CBOE%20-%20IVolatility%20Services


investopedia----oa article on options....

cboe->tools->volatility optimizer->IV Index  (looks at golden graph on the bottom right)
Only buy options when on lower end....
Otherwise sell options....

IV is a range varies for each stock... and used as a number

Prophet charts -> Option controls -> Avg I V graph

Chart Patterns: http://thepatternsite.com/visualcpindex.html