The SZSE Component Index is a stock index that tracks the performance of the 500 largest companies listed on the Shenzhen Stock Exchange, one of the three stock exchanges operating independently in Mainland China. It's often seen as a benchmark of Shenzhen equities, a market rich enough to have other indices alongside SZSE Component Index, e.g. SZSE 300 Index or SZSE 1000 Index. Following SZSE Component Index helps investors stay in touch with what's happening in the Chinese economy.