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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 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 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 .
Simple works best, and that principle applies perfectly to the one stock that earned the title of "The Motley Fool's Top Stock for 2012." To learn about this rare opportunity, request your free ...
It’s important to remember that stocks can be volatile and high returns aren’t guaranteed. Here’s a breakdown of the average stock market return and how stocks have performed in recent ...
The purpose of Bollinger Bands is to provide a relative definition of high and low prices of a market. By definition, prices are high at the upper band and low at the lower band. This definition can aid in rigorous pattern recognition and is useful in comparing price action to the action of indicators to arrive at systematic trading decisions. [3]
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.