The Shanghai Stock Exchange (SSE) is one of the largest stock exchanges in the world, located in Shanghai, China. Established in 1990, it plays a crucial role in the Chinese economy by providing a platform for companies to raise capital and for investors to buy and sell shares. The SSE primarily lists large state-owned enterprises and is known for its focus on domestic companies. The exchange operates under a system of regulations set by the China Securities Regulatory Commission (CSRC). It features two main indices: the SSE Composite Index, which tracks all listed stocks, and the SSE 50 Index, which focuses on the top 50 companies by market capitalization.