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April 21, 2019 
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Why Understanding Volatility is so important to Options Traders:

The more a stock moves up and down, the better the chance that its option will pay off. Taking volatility into account can mean the difference between long-term success and steady losses.

Volatility = (high price - low price)/[(high price + low price)/2]. Or, you can use our Volatility Measurement Table.

Refer to Chapter Four in the On-Line Manual for more information.

Volatility Measurement Table

Historical Volatility Table

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