Stock index adjustments, analyst coverage and institutional holdings: Evidence from China

• 作者: Song Zhu Xiaoli Ke Xiaoyu Bai Xiaoyu Jiang
• 来源期刊: 中国会计学刊：英文版
• 学科: 经济
• 关键词: 储备索引调整 分析家范围 机构的成立
• 年，卷（期）: 2017,（3）
• 页码范围: 281-293
• 页数: 13页
• 分类号: F832.51

摘要

Using 231 pairs of matched firms from 2009 to 2012 in Chinese stock market,we find that the stock index adjustment significantly affects the analyst coverage, which in addition to the stock index leads to more analyst coverage, while deletion from the stock index has no significant effect, indicating that stock index adjustment can significantly change the information environments of firms that are added to the index. An index adjustment also affects institutional holdings in consideration of new information(e.g., changes in fundamentals and information environments). Changes in institutional holdings are partially due to changes in analyst coverage, and both index funds and other types can change their portfolios in response to changes in the target firms’ informativeness.