指数效应是指在成份指数调整前后，调入指数和调出指数的股票的价格和成交量均会有的异常的市场反应。
The index effect is defined as the abnormal market reflection of price and volume of the stocks being added into and deleted from an index as the index adjusts its sample stocks timely.
指数效应是指在成份指数调整前后，调入指数和调出指数的股票的价格和成交量均会有的异常的市场反应。
The index effect is defined as the abnormal market reflection of price and volume of the stocks being added into and deleted from an index as the index adjusts its sample stocks timely.
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