BD6MM
The Shanghai Composite Index (full name: Shanghai Stock Exchange Composite Index), is one of the indices established by the Shanghai Stock Exchange, and it is also the most well-known index. The index code is 000001.
In addition to the Shanghai Composite Index, there are other classification indices within the Shanghai Series, which reflect the overall performance of different types of stocks, such as the A-share index reflecting the performance of A-shares and the B-share index reflecting the performance of B-shares.
In simple terms, it means observing whether a stock's price goes up or down.