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CBOE Volatility Index (VIX) from December 1985 to May 2012 (daily closings) In finance, volatility (usually denoted by "σ") is the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns. Historic volatility measures a time series of past market prices.
The VIX is an index run by the Chicago Board Options Exchange, now known as Cboe, that measures the stock market’s expectation for volatility over the next 30 days based on option prices for the ...
The resulting VIX index formulation provides a measure of market volatility on which expectations of further stock market volatility in the near future might be based. The current VIX index value quotes the expected annualized change in the S&P 500 index over the following 30 days, as computed from options-based theory and current options ...
The price of this option is influenced by multiple factors, including the stock’s current price, the option’s strike price, time to expiration and implied volatility. If the market expects a ...
Volatility is up, and the S&P 500 chalked both its best and worst day of the year this past week. And that you can have both in the span of a few days is an important market lesson.
An important factor is the underlying instrument's volatility. Volatility in underlying prices increase the likelihood and magnitude of a gain in IV, thus enhancing the option's value and stimulating option demand. Numerically, this value depends on the time until the expiration date and the volatility of the underlying instrument's price.
Volatility index (VIX): Often referred to as the “fear index,” the VIX measures market expectations for future volatility. It is calculated based on the prices of options on the S&P 500 index.
The Acertus Market Sentiment Indicator (AMSI) incorporates five variables (in descending order of weight in the indicator): Price/Earnings Ratio (a measure of stock market valuations); price momentum (a measure of market psychology); Realized Volatility (a measure of recent historical risk); High Yield Bond Returns (a measure of credit risk ...
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