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thinkorswim Standard Deviation Price Change 03/19/09

The last bar’s price change is represented as its ratio to the standard deviation of the price.

  1. Eric Purdy
    In his book, The Volatility Edge in Options Trading[​IMG], Jeff Augen describes a method for recasting absolute price changes in terms of recent volatility using the standard deviation. In this representation of price action, the last bar’s price change is represented as its ratio to the standard deviation of the price action over a recent period. augen.png
    John Koh likes this.