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SSE Composite Index

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The SSE Composite Index also known as SSE Index is a stock market index of all stocks (A shares and B shares) that are traded at the Shanghai Stock Exchange.[2]

SSE Composite Index
SSE Composite Index.png
SSE Composite Index 1990–2016
  • 15 July 1991; 28 years ago (1991-07-15) (launch date)
  • 19 December 1990 (base date)
ExchangesShanghai Stock Exchange
Constituentsall stock (A & B shares)
Typeall cap
Market cap
  • CN¥32.697 trillion (September 2017)[1]
  • CN¥12.727 trillion (free-float adjusted, September 2017)[1]
Related indices
SSE Composite Index
Simplified Chinese上海证券交易所综合股价指数
Alternative Chinese name
Simplified Chinese上证综合指数
Second alternative Chinese name
Simplified Chinese上证综指

They are also SSE 180, SSE 50 and SSE Mega-Cap Indexes for top 180, 50 and 20 companies respectively.

Weighting and calculationEdit

SSE Indices are all calculated using a Paasche weighted composite price index formula. This means that the index is based on a base period on a specific base day for its calculation. The base day for SSE Composite Index is December 19, 1990, and the base period is the total market capitalization of all stocks of that day.[2] The Base Value is 100. The index was launched on July 15, 1991.[2]

  • The formula is:

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

Total market capitalization = ∑ (price × shares issued)

  • The B share stocks are generally denominated in US dollars for calculation purposes. 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 and then published by the exchange.

See alsoEdit


  1. ^ a b "SSE Composite Fact Sheet September 2017" (PDF) (Press release). China Securities Index. September 2017. Archived (PDF) from the original on 31 October 2017. Retrieved 31 October 2017.
  2. ^ a b c "Methodology of SSE Composite Index" (PDF). China Securities Index. Retrieved 31 October 2017.

External linksEdit