What is csi 100 index

The CSI 100 Index is a capitalization-weighted, free float adjusted stock market index designed to replicate the performance of the top 100 stocks traded in the Shanghai and Shenzhen stock markets. It is maintained by the China Securities Index Co. Ltd. (CSI) and is used as a benchmark for measuring the overall performance of the Chinese stock market. The index was launched on December 30, 2005, with a base value of 1000.