Seasonality in the cross-section of stock returns |
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Authors: | Steven L Heston Ronnie Sadka |
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Institution: | 1. R.H. Smith School of Business, University of Maryland, College Park, MD, 20742, USA;2. University of Washington Business School, Seattle, WA, 98195, USA |
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Abstract: | This paper presents a new pattern in the cross-section of expected stock returns. Stocks tend to have relatively high (or low) returns every year in the same calendar month. We recognize the annual cross-sectional autocorrelation pattern documented in Jegadeesh 1990. Evidence of predictable behavior of security returns. Journal of Finance 45, 881–898] at lags of 12, 24, and 36 months as part of a general pattern that lasts up to 20 annual lags, superimposed on the general momentum/reversal patterns. This pattern explains an economically and statistically significant magnitude of the cross-sectional variation in average stock returns. Volume and volatility exhibit similar seasonal patterns but they do not explain the seasonality in returns. The pattern is independent of size, industry, earnings announcements, dividends, and fiscal year. The results are consistent with the existence of a persistent seasonal effect in stock returns. |
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Keywords: | G12 G14 |
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