Shanghai Stock Exchange (SSE) Composite Index

The SSE Composite is a weighted index of all stocks traded on the Shanghai Stock Exchange.

2 categories of stocks are traded on the SSE:

A shares are Renminbi denominated shares in Chinese commercial entities, traded on the Shanghai and Shenzen exchanges, and ownable only by Chinese nationals.

B shares, on the other hand, are non-RMB denominated shares, ownable initially only by foreigners, but from 2001 by both foreigners and Chinese nationals.