Constituents for SSE Composite Index are all listed stocks (A shares and B shares) at Shanghai Stock Exchange.The Base Day for SSE Composite Index is December 19, 1990. The Base period is the total market capitalization of all stocks of that day. The Base Value is 100. The index was launched on July 15, 1991.


SSE Composite Index Methodology
Index Calculation
• 1) Base Day, Base Period and Base Value
a) The Base Day for SSE New Composite Index is December 30, 2005 . The Base period is the total market capitalization of all constituents of that day. The Base Value is 1000. The index was launched on January 4, 2006 .
b) The Base Day for SSE Composite Index is December 19, 1990 . The Base period is the total market capitalization of all stocks of that day. The Base Value is 100. The index was launched on July 15, 1991 .
c) The Base Day for SSE A Share Index is December 19, 1990 . The Base Period is the total market capitalization of all A shares of that day. The Base Value is 100. The index was launched on February 21, 1992 .
d) The Base Day for SSE B Share Index is February 21, 1992 . The Base Period is the total market capitalization of all B shares of that day. The Base Value is 100. The index was launched on August 17, 1992 .
e) The Base Day for SSE Sector Indices is April 30, 1993 . The Base Period is the total market capitalization of all stocks of respective sector of that day. The Base Values for all sector indices are 1358.78(closing value for SSE Composite Index on April 30, 1993 ). The indices were launched on May 3, 1993 .

• 2) Calculation Formula
a) SSE Indices are all calculated using a Paasche weighted composite price index formula.
b) Composite Indices and Sector Indices are weighted by shares.
The formula is


                                           Current total market cap of constituents
Current index = ───────────────────────── × Base Value
                                                             Base Period


Total market capitalization = ∑ (price × shares issued)
c) B share Price unit
B share stocks are denominated in US dollars when B share index are calculated. For calculation of other indices, B share stock prices are converted to RMB at the applicable exchange rate (the middle price of US dollar on the last trading day of each week) at China Foreign Exchange Trading Center.