Difference Between Implied Volatility and Historical Volatility One approach to grasp implied volatility is to compare it to its polar opposite: historical volatility. Historical volatility, unlike IV, is a measure of what has actually occurred with an investment. It calculates the yearly average of a security's daily price fluctuations. Historical volatility can be a useful tool fo... https://topcollegesadmission.in/college-list/mtechme/pune