沪深股票后复权因子

获取沪深股票用来调整历史行情的后复权因子数据（以上市价格为基准），包含除权除息日、除权除息事项具体数据、本次复权因子、累积复权因子以及对应的生效日期区间。该因子用来调整历史行情，不作为预测使用，于除权除息日进行计算调整。只在发生分红、配股、股改事件的除权除息日才有复权因子记录。

This dataset provides backward adjustment factors (using the IPO price as the benchmark) for adjusting historical market quotes of Shanghai and Shenzhen-listed stocks. It includes the ex-dividend and ex-rights date, detailed information of the specific ex-dividend/ex-rights event, the single-period adjustment factor, the cumulative backward adjustment factor, and the corresponding valid date range. This factor is exclusively used for adjusting historical market data, not for forecasting purposes, and is calculated and adjusted on the ex-dividend and ex-rights date. Records of such backward adjustment factors are only available on the ex-dividend and ex-rights dates when cash dividend distribution, rights offering, or share structure reform events take place.