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Archive for August, 2012

Volatility and Correlation Forecasting

24 Aug

Article by: Andersen, T.G., Bollerslev, T., Christoffersen, P.F., and Diebold, F.X.
Published by: Handbook of Economic Forecasting. Amsterdam: North-Holland
Date: 2006

“Volatility has been one of the most active and successful areas of research in time series econometrics and economic forecasting in recent decades. This chapter provides a selective survey of the most important theoretical developments and empirical insights to emerge from this burgeoning literature, with a distinct focus on forecasting applications. Volatility is inherently latent, and Section 1 begins with a brief intuitive account of various key volatility concepts. Section 2 then discusses a series of different economic situations in which volatility plays a crucial role, ranging from the use of volatility forecasts in portfolio allocation to density forecasting in risk management. Sections 3–5 present a variety of alternative procedures for univariate volatility modeling and forecasting based on the GARCH, stochastic volatility and realized volatility paradigms, respectively. Section 6 extends the discussion to the multivariate problem of forecasting conditional covariances and correlations, and Section 7 discusses volatility forecast evaluation methods in both univariate and multivariate cases. Section 8 concludes briefly.”

Full article (PDF): Link

 
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Posted in Realized volatility

 

Variance swaps and CBOE S&P 500 variance futures

04 Aug

Article by: Lewis Biscamp and Tim Weithers
Published by: Chicago Trading Company, LLC
Date: ?

“Over the past several years, equity-index volatility products have emerged as an asset class in their own right. In particular, the use of variance swaps has skyrocketed in that time frame. A recent estimate from Risk magazine placed the daily volume in variance swaps on the major equity-indices to be US$5m vega (or dollar volatility risk per percentage point change in volatility). Furthermore, variance trading has roughly doubled every year for the past few years.

“Along with the proliferation of the breadth and complexity of available volatility products has come increased anxiety and confusion about how investors can most effectively and efficiently trade volatility. We offer a brief overview of the concept of variance and volatility; describe how a variance swap can be used to trade equity-index volatility; and illustrate some advantages that variance swaps offer over other volatility-based assets. Lastly, we will describe how CBOE variance futures contracts are essentially the same as an OTC variance swap.”

Full article (PDF): Link