abnormal trading volume
Then we find that the market has strong reactions in abnormal return and abnormal trading volume during the two event-day periods.
研究发现在两个事件日前后和当天,市场在超额收益率和超常交易量上都有强烈反应。
·2,447,543篇论文数据，部分数据来源于NoteExpress
研究发现在股票更名前后存在超常交易量和超额收益率，市场对更名事件存在过度反应。
The abnormal trading volume and returns around the period of the rename of the stock and the overreaction of the market on the rename of the stock are found.
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