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Implied Volatility / VIX

The Volatility Index (or VIX) is a weighted measure of the implied volatility for SPX put and call options. The puts and calls are weighted according to time remaining and the degree to which they are in or out of…
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All About Volatility

There are several measures of volatility. (Historical Volatility, Implied Volatility, Average True Range, Bollinger Bands, etc..) The first is the actual volatility of the stock. This is seen in the HistoricalVolatility, which can be measured over any time frame but…