Volatility S&P 500 Index
VIX CBOE

VIX
Volatility S&P 500 Index CBOE
 
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Day's Range

VIX Index Chart

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VIX is a trademarked ticker symbol for the CBOE Volatility Index, a popular measure of the implied volatility of S&P 500 index options; the VIX is calculated by the Chicago Board Options Exchange (CBOE). Often referred to as the fear index or the fear gauge, the VIX represents one measure of the market's expectation of stock market volatility over the next 30-day period.

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