abnormal returns

Further study on the insider trading cases punished by CSRC shows there is a statistical significance for abnormal rate of return, cumulative abnormal returns and abnormal trading volumes before the public release of substantial information.

对我国内幕交易案件的实证研究进一步表明，在公司重要未公开事件公告前，该公司股票异常收益率、累积异常收益率和异常交易量都表现出统计显著性。

Can Backdating Explain the Abnormal Returns around Taiwanese Employee Stock Option Grants?

回溯日期可以解释台湾员工认股选择权给予日附近的异常报酬率 吗 ?

The result suggests that significantly negative cumulative abnormal returns arise around the publication of guarantee statements.

结果发现,上市公司发布担保公告日前后出现显著为负的累积非正常报酬.

Using the Buy-and-hold abnormal return, Cumulative abnormal returns and Fama-French three-factor model as three indicators constant, by comparing the approval system and approval system under the IPO pricing efficiency, to illustrate the affection of the Stock Offering System reform on the efficiency of IPO pricing.

采用了买入持有超额收益、累计超额收益和Fama-French三因素模型的常数项三个指标，通过对比审批制和核准制下的新股发行定价效率，来说明发行制度改革对IPO定价效率的作用。

Companies with high levels of customer satisfaction tend to generate abnormal returns.

顾客满意度高可以帮助企业在股票市场上获得超额利润.