A measure correlating stock price movement to the movement of an index.
把股票价格的运动联系到指数运动的一种衡量方法。
The fluctuation of stock price index on the securities market is subject to many factors.
证券市场股价指数的变动是受多因素影响的。
The fluctuation of stock price index on the securities market is subject to many factors.
证券市场股价指数的变动是受多因素影响的。
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