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 | Trading Range Simulator 
                                        It allows you to see the 1 and 2 Standard Deviation moves of the underlying stock. You can default to 1 Standard Deviation by clicking on the Normal button and 2 Standard Deviation by clicking on the Wide button.
                                        The P&L charts will be re-drawn and the Options Play Score will be recalculated  based on the range you select.
                                        
Standard deviation is a measure of the price-fluctuations of an underlying.  68.27% of the historical movements lie within 1 standard deviation of the mean move. Likewise, 95.45% of the movements lie within 2 standard deviations of the mean move. |