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Are investors moonstruck?: lunar phases and stock returns

Yuan, Kathy, Zheng, Liu and Zhu, Qiaoqiao (2006) Are investors moonstruck?: lunar phases and stock returns. Journal of Empirical Finance, 13 (1). pp. 1-23. ISSN 0927-5398

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Identification Number: 10.1016/j.jempfin.2005.06.001


This paper investigates the relation between lunar phases and stock market returns of 48 countries. The findings indicate that stock returns are lower on the days around a full moon than on the days around a new moon. The magnitude of the return difference is 3% to 5% per annum based on analyses of two global portfolios: one equal-weighted and the other value-weighted. The return difference is not due to changes in stock market volatility or trading volumes. The data show that the lunar effect is not explained away by announcements of macroeconomic indicators, nor is it driven by major global shocks. Moreover, the lunar effect is independent of other calendar-related anomalies such as the January effect, the day-of-week effect, the calendar month effect, and the holiday effect (including lunar holidays).

Item Type: Article
Official URL:
Additional Information: © 2006 Elsevier
Divisions: Finance
Subjects: H Social Sciences > HB Economic Theory
H Social Sciences > HG Finance
JEL classification: G - Financial Economics > G1 - General Financial Markets > G12 - Asset Pricing; Trading volume; Bond Interest Rates
G - Financial Economics > G1 - General Financial Markets > G14 - Information and Market Efficiency; Event Studies
Date Deposited: 10 Nov 2011 11:41
Last Modified: 20 Oct 2021 01:42

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