向前复权和向后复权

百度百科==垃圾

百度的资料应该写的是这个意思,http://www.fintools.com/wp-content/uploads/2012/02/DividendAdjustedStockPrices.pdf

但网页中最新复权因子,最大复权因子乱用一气,不是处女座的人都tmd受不了了。

向后复权=当日收盘价格*当日share数

向前复权=当日收盘价格*(当日shares数量/统计截至日期最后一日的share数)

http://www.crsp.com/products/documentation/crsp-calculations

https://ycharts.com/glossary/terms/total_return_price

http://www.vectorvest.com/realtime/training/help/Price_Actual_and_Price_Split_Adjusted.htm

不光价格需要复权,Share and volume data也得复权。

 

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