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Market timing with aggregate and idiosyncratic stock volatilities

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Author Info
Hui Guo
Jason Higbee

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Abstract

Guo and Savickas [2005] show that aggregate stock market volatility and average idiosyncratic stock volatility jointly forecast stock returns. In this paper, we quantify the economic significance of their results from the perspective of a portfolio manager. That is, we evaluate the performance, e.g., the Sharpe ratio and Jensen's alpha, of a mean-variance manager who tries to time the market based on those two variables. We find that, over the period 1968-2004, the associated market-timing strategy outperforms the buy-and-hold strategy, and the difference is statistically and economically significant.

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Paper provided by Federal Reserve Bank of St. Louis in its series Working Papers with number 2005-073.

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Date of creation: 2006
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Handle: RePEc:fip:fedlwp:2005-073

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Keywords: Stock exchanges;

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  2. Fama, Eugene F. & French, Kenneth R., 1993. "Common risk factors in the returns on stocks and bonds," Journal of Financial Economics, Elsevier, vol. 33(1), pages 3-56, February. [Downloadable!] (restricted)
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  4. French, Kenneth R. & Schwert, G. William & Stambaugh, Robert F., 1987. "Expected stock returns and volatility," Journal of Financial Economics, Elsevier, vol. 19(1), pages 3-29, September. [Downloadable!] (restricted)
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  6. Miller, Edward M, 1977. "Risk, Uncertainty, and Divergence of Opinion," Journal of Finance, American Finance Association, vol. 32(4), pages 1151-68, September. [Downloadable!] (restricted)
  7. John Y. Campbell, 2001. "Have Individual Stocks Become More Volatile? An Empirical Exploration of Idiosyncratic Risk," Journal of Finance, American Finance Association, vol. 56(1), pages 1-43, 02. [Downloadable!] (restricted)
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  8. Lehmann, Bruce N., 1990. "Residual risk revisited," Journal of Econometrics, Elsevier, vol. 45(1-2), pages 71-97. [Downloadable!] (restricted)
  9. Balduzzi, Pierluigi & Lynch, Anthony W., 1999. "Transaction costs and predictability: some utility cost calculations," Journal of Financial Economics, Elsevier, vol. 52(1), pages 47-78, April. [Downloadable!] (restricted)
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  11. Chance, Don M. & Hemler, Michael L., 2001. "The performance of professional market timers: daily evidence from executed strategies," Journal of Financial Economics, Elsevier, vol. 62(2), pages 377-411, November. [Downloadable!] (restricted)
  12. Amit Goyal & Ivo Welch, 2002. "Predicting the Equity Premium With Dividend Ratios," NBER Working Papers 8788, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  13. Martin Lettau, 2001. "Consumption, Aggregate Wealth, and Expected Stock Returns," Journal of Finance, American Finance Association, vol. 56(3), pages 815-849, 06. [Downloadable!] (restricted)
  14. Hui Guo, 2003. "On the real-time forecasting ability of the consumption-wealth ratio," Working Papers 2003-007, Federal Reserve Bank of St. Louis. [Downloadable!]
  15. John Y. Campbell & John Cochrane, 1999. "Force of Habit: A Consumption-Based Explanation of Aggregate Stock Market Behavior," Journal of Political Economy, University of Chicago Press, vol. 107(2), pages 205-251, April. [Downloadable!] (restricted)
  16. Levy, Haim, 1978. "Equilibrium in an Imperfect Market: A Constraint on the Number of Securities in the Portfolio," American Economic Review, American Economic Association, vol. 68(4), pages 643-58, September. [Downloadable!] (restricted)
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  18. Bruce N. Lehmann, 1990. "Residual Risk Revisited," NBER Working Papers 1908, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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