16.10 Daily volatilities In option pricing we express volatility as volatility per year In VaR calculations we express volatility as volatility per day year 252 Options, Futures, and other Derivatives, 5th edition 2002 by John C. HullOptions, Futures, and Other Derivatives, 5th edition © 2002 by John C. Hull 16.10 Daily Volatilities • In option pricing we express volatility as volatility per year • In VaR calculations we express volatility as volatility per day 252 year day   =