Implied Volatility (IV) in Option Chains: The Hidden Market Sentiment. How IV affects option pricing The rate at which security rises and falls is measured by volatility. Volatility is high when a security moves swiftly up and down. In contrast, volatility is low when a security moves slowly up or down. Historical volatility (also known as realized volatility) is a recording of how ... https://topcollegesadmission.in/college-list/mtechme/pune