Daily closing prices of S&P 500 and Shanghai Composite indices (2006–2025)

This dataset contains daily closing prices for two major equity market indices: the S&P 500 index (SPX) representing the U.S. stock market and the Shanghai Composite index (SSE) representing the Chinese A-share market. The sample covers all available trading days from 3 January 2006 to 30 June 2025.The original index series were obtained from WIND and are redistributed here for research and academic use.

本数据集收录了两大主流股票市场指数的每日收盘价：代表美国股票市场的标普500指数（S&P 500 index, SPX），以及代表中国A股市场的上证综合指数（Shanghai Composite index, SSE）。样本区间覆盖2006年1月3日至2025年6月30日的全部可获取交易日。本数据集的原始指数序列均取自万得（WIND），现重新发布以供研究与学术用途。