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卖空约束下股票的信息吸收

Information absorption in stocks with short‐selling constraints

The Journal of Financial Research · 2025
被引 0
人大 BABS 3

中文导读

利用日本独特监管数据,研究发现卖空限制导致股票对已公开信息反应延迟,表现为增发日价格显著波动,而美国市场无此现象。

Abstract

Abstract We use a Japanese dataset with unique regulatory features to examine information absorption in stocks with short‐selling constraints. Japanese stock exchanges place short‐sales restrictions on a specific subset of stocks and have distinctive regulations pertaining to seasoned equity offerings (SEOs). In sharp contrast to the United States, no offer‐related information is released on the Japanese SEO issue date. We observe a significant price reaction on the issue date only for short‐ sales restricted stocks, manifested when additional shares are introduced. We posit that the phenomenon is attributable to short‐sales restrictions causing a delayed reaction to the stale publicly available information, to which the market has already reacted at its announcement.

金融市场卖空限制信息效率日本股市