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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-market data. To summarize, VIX is a volatility index derived from S&P 500 options for the 30 days following the measurement date, [5] with the price of each option ...
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 average magnitude of the observations is merely an approximation of the standard deviation of the market index. Assuming that the market index daily changes are normally distributed with mean zero and standard deviation σ, the expected value of the magnitude of the observations is √(2/ π)σ = 0.798σ. The net effect is that this crude ...
(But the VIX itself is an index and does not actually trade, much like the S&P 500.) Investors might assume that a low VIX means markets are stable and not in need of hedging. But a low VIX is an ...
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Volatility risk is the risk of an adverse change of price, due to changes in the volatility of a factor affecting that price.It usually applies to derivative instruments, and their portfolios, where the volatility of the underlying asset is a major influencer of option prices.
IVX is the abbreviation of Implied Volatility Index and is a popular measure of the implied volatility [1] of each individual stock. [2] IVX represents the cost level of the options for a particular security and comparing to its historical levels one can see whether IVX is high or low and thus whether options are more expensive or cheaper.
A look at what last month's historically heightened VIX can tell us about stocks