... classic forecasting techniques, such as regres-sion analysis, time series analysis, and even classic chart patterns such ashead and shoulders and trendlines. However, professional options traderswill ... volatil-ity. Usually, the value for volatility is plugged in and the formula is solved for the value of the option. Here, the situation is reversed—the formula issolved for volatility because the ... distribution pattern. For example,the price of stock index and stock options has an upward drift to it. Stock prices have moved erratically higher since stocks began trading under thebuttonwood tree in...