High idiosyncratic volatility and low returns: International and further US evidence

• 成果类型: Article
• 署名作者: Ang, Andrew; Hodrick, Robert J.; Xing, Yuhang; Zhang, Xiaoyan
• 署名单位: Columbia University; National Bureau of Economic Research; Rice University; Cornell University
• 刊物名称: JOURNAL OF FINANCIAL ECONOMICS
• ISSN/ISSBN: 0304-405X
• DOI: 10.1016/j.jfineco.2007.12.005
• 发表日期: 2009
• 页码: 1-23
• 关键词: Cross-section of stock returns; predictability; factor model

摘要

Stocks with recent past high idiosyncratic volatility have low future average returns around the world. Across 23 developed markets, the difference in average returns between the extreme quintile portfolios sorted on idiosyncratic volatility is -1.31% per month, after controlling for world market, size, and value factors. The effect is individually significant in each G7 country. In the United States, we rule out explanations based on trading frictions, information dissemination, and higher moments. There is strong covariation in the low returns to high-idiosyncratic-volatility stocks across countries, suggesting that broad, not easily diversifiable factors lie behind this phenomenon. (C) 2008 Elsevier B.V. All rights reserved.