The Shanghai Composite Index is a stock market index that tracks the performance of all stocks listed on the Shanghai Stock Exchange. It includes both A-shares, which are traded in Chinese yuan, and B-shares, which are available to foreign investors. The index serves as a key indicator of the overall health of the Chinese economy and stock market. Investors and analysts use the Shanghai Composite Index to gauge market trends and make investment decisions. It is one of the most widely followed indices in Asia and reflects the performance of various sectors, including finance, technology, and consumer goods.