Abstract

https://ssrn.com/abstract=2186267
 
 

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Time-Varying Relationship of News Sentiment, Implied Volatility and Stock Returns


Lee A. Smales


Curtin University - School of Economics and Finance

October 12, 2012

Applied Economics, Forthcoming
Asian Finance Association (AsFA) 2013 Conference

Abstract:     
I examine the relationship between aggregate news sentiment, S&P 500 Index returns, and changes in the implied volatility index (VIX). I find a significant negative contemporaneous relationship between changes in VIX and both news sentiment and stock returns. This relationship is asymmetric whereby changes in VIX are larger following negative news and/or stock market declines. VAR analysis of the dynamics and cross-dependencies between variables reveals a strong positive relationship between previous and current period changes in implied volatility and stock returns, while current period and lagged news sentiment has a significant positive (negative) relationship with stock returns (changes in VIX). I develop a simple trading strategy whereby high (low) levels of implied volatility signal attractive opportunities to take long (short) positions in the underlying index, while extremely negative (positive) news sentiment signals opportunities to enter short (long) index positions.

Number of Pages in PDF File: 23

Keywords: VIX, VAR, News Sentiment, S&P500, Equity

JEL Classification: G1, G10, G14


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Date posted: December 13, 2012 ; Last revised: March 16, 2016

Suggested Citation

Smales, Lee A., Time-Varying Relationship of News Sentiment, Implied Volatility and Stock Returns (October 12, 2012). Applied Economics, Forthcoming; Asian Finance Association (AsFA) 2013 Conference. Available at SSRN: https://ssrn.com/abstract=2186267 or http://dx.doi.org/10.2139/ssrn.2186267

Contact Information

Lee A. Smales (Contact Author)
Curtin University - School of Economics and Finance ( email )
GPO Box U 1987
Perth, Western Australia 6845
Australia
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