Volatility distribution in the S&P500 stock index
نویسندگان
چکیده
منابع مشابه
Volatility distribution in the S&P500 Stock Index
We study the volatility of the S&P500 stock index from 1984 to 1996 and find that the volatility distribution can be very well described by a log-normal function. Further, using detrended fluctuation analysis we show that the volatility is powerlaw correlated with Hurst exponent α ∼= 0.9. The volatility is a measure of the mean fluctuation of a market price over a certain time interval T . The ...
متن کاملRealize the Realized Stock Index Volatility*
This paper constructs estimates of daily stock index volatilities and correlation using high-frequency (one-minute) intraday stock indices. The key feature of these ‘realized’ volatilities and correlations is that they are not only model-free but also approximately measurement-error-free. In fact, they can be treated as observed rather than latent, so that direct modeling and forecasting of the...
متن کاملStock Index Futures Trading and Volatility in International Equity Markets
We examine stock market volatility before and after the introduction of equity index futures trading in twenty-five countries, using various models that account for asynchronous data, conditional heteroskedasticity, asymmetric volatility responses, and the joint dynamics of each country’s index with the world market portfolio. We find that futures trading is related to an increase in conditiona...
متن کاملInvestigating the Asymmetry in Volatility for the Iranian Stock Market
This paper investigates the asymmetry in volatility of returns for the Iranian stock market using the daily closing values of the Tehran exchange price index (TEPIX) covering the period from March 25, 2001 to July 25, 2012, with a total of 2743 observations. To this end, two sets of tests have been employed: the first set is based on the residuals derived from a symmetric GARCH (1,1) model. The...
متن کاملAsymptotic Behavior of the Stock Price Distribution Density and Implied Volatility in Stochastic Volatility Models
We study the asymptotic behavior of distribution densities arising in stock price models with stochastic volatility. The main objects of our interest in the present paper are the density of time averages of the squared volatility process and the density of the stock price process in the Stein-Stein and the Heston model. We find explicit formulas for leading terms in asymptotic expansions of the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 1997
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(97)00417-2