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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 ...
Although it is an excellent measure of averaged implied volatility of the stock, the IVX sometimes cannot be calculated for stocks with illiquid options that have no volume traded and a huge spread in prices. This is because none of the option models will produce good volatility measure using the options with unreliable prices.
The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on the American stock exchanges (including the 30 companies that compose the Dow Jones Industrial Average). The index includes about 80 percent of the American market by capitalization.
Dec. 18 was a big down day in the stock market with the Nasdaq Composite (NASDAQINDEX: ^IXIC) falling 3.6% and the S&P 500 (SNPINDEX: ^GSPC) tumbling 2.9%. The main catalyst for the sell-off was ...
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 ...
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 ...
It was the second stock market hiccup in less than a week after a glitch last Thursday affected the dissemination of real-time data for the S&P 500 and Dow Jones indexes for over an hour.
Cboe has two main proprietary index options products, options on the VIX Index, an index that measures expectations for stock market volatility [52] and options on SPX, the Standard & Poor's 500 index. [43] The company also provides platforms for trading options on other indices, including the Russell 2000 Index. [51]