Shanghai Composite Index

Shanghai Composite Index
Name	Shanghai Composite Index
Native name	上证综合指数
Operator	Shanghai Stock Exchange
Introduced	1991
Currency	Chinese yuan (CNY)
Constituents	Companies listed on Shanghai Stock Exchange
Homepage	Shanghai Stock Exchange

Shanghai Composite Index The Shanghai Composite Index is a principal stock market index that tracks the performance of all A-shares and B-shares listed on the Shanghai Stock Exchange and serves as a barometer for capital markets in Shanghai, People's Republic of China, and the broader Greater China financial landscape. It is followed by domestic institutions such as the China Securities Regulatory Commission, Securities Association of China, and international investors including BlackRock, Vanguard Group, and Allianz. Market participants include state-owned enterprises like Industrial and Commercial Bank of China, private conglomerates such as Alibaba Group (when listed activities touch mainland markets), and major financial centers like Hong Kong and New York City through cross-listing and depositary arrangements.

Overview

The index was launched by the Shanghai Stock Exchange to provide a comprehensive measure of market value and daily price movements across mainland listings, with methodology influenced by practices at the New York Stock Exchange, London Stock Exchange, and Tokyo Stock Exchange. It encompasses firms from sectors represented in benchmarks such as the CSI 300 Index, the Hang Seng Index, and the Shenzhen Component Index, and interacts with instruments managed by asset managers like ChinaAMC and E Fund Management. Investors include sovereign wealth entities like the China Investment Corporation and pension funds modeled on systems in United States and United Kingdom.

History and Development

The index's establishment in 1991 occurred amid reforms championed by leaders connected to the Deng Xiaoping era and economic policies linked to milestones like China's accession to the World Trade Organization in 2001. Early market phases featured listings of banks such as Bank of China and industrial firms like China Shenhua Energy Company, with regulatory evolution shaped by episodes that involved the China Securities Regulatory Commission and policy responses from the State Council of the People's Republic of China. Significant developments include the 2005 share reform affecting non-tradable shares, cross-border programs such as Shanghai–Hong Kong Stock Connect and later Shanghai–London Stock Connect discussions, and reforms influenced by advisers from international institutions including the International Monetary Fund and World Bank.

Composition and Calculation

Constituents include A-share issuers and B-share issuers across sectors represented by companies like China Petroleum & Chemical Corporation (Sinopec), PetroChina, China Mobile, and financial giants such as China Construction Bank and Agricultural Bank of China. The index uses a market capitalization-weighted methodology similar to indices at the Nasdaq Stock Market and the S&P Dow Jones Indices, with adjustments for free-float factors overseen by the Shanghai Stock Exchange technical committee. Corporate events involving firms such as Tencent (via cross-listings), Ping An Insurance, China Life Insurance, and state groups like China National Petroleum Corporation affect index composition through listings, delistings, mergers, and spin-offs adjudicated under rules influenced by the China Securities Regulatory Commission and adjudicated in listings committees akin to those at the Hong Kong Exchanges and Clearing.

Market Performance and Major Events

The index has experienced pronounced cycles comparable to historical episodes referenced by commentators about the 1997 Asian Financial Crisis and the 2008 Global Financial Crisis, and was central to the 2015 Shanghai stock turbulence involving margin trading, retail speculation, and interventions by the China Securities Regulatory Commission and state-owned brokerages like CITIC Securities and Guotai Junan Securities. Other notable events include reactions to macro policies announced by the People's Bank of China, trade tensions associated with the United States–China trade war, stimulus measures coordinated with the State Council, and market responses to major corporate scandals or restructurings at firms like Anbang Insurance Group and HNA Group.

Regulation and Trading Mechanisms

Trading follows rules set by the Shanghai Stock Exchange under supervision of the China Securities Regulatory Commission, with mechanisms such as circuit breakers, daily price limits, and trading bands comparable to mechanisms at NASDAQ and the London Stock Exchange. Cross-border schemes like Stock Connect link clearing and settlement with Hong Kong Exchanges and Clearing and involve custodians and clearinghouses modeled after institutions such as the DTCC in United States and Euroclear in Belgium. Regulatory enforcement has involved coordination with prosecutorial and administrative bodies including the Supreme People's Court on securities litigation and agencies managing corporate governance standards influenced by the Organisation for Economic Co-operation and Development guidelines.

Economic Significance and Criticism

The index functions as an indicator for policymakers in bodies such as the People's Bank of China and National Development and Reform Commission, and it influences decisions by institutional investors like Norway Government Pension Fund Global and hedge funds active in Shanghai. Critics point to concerns raised by academics from institutions such as Peking University, Tsinghua University, and think tanks including the China Center for International Economic Exchanges about retail investor dominance, state ownership concentration, market transparency, and corporate governance challenges at firms like China Evergrande Group. Debates involve comparisons to market structures overseen by the Securities and Exchange Commission in the United States and policy dialogues with the International Monetary Fund and World Bank on liberalization and financial stability.

Category:Stock market indices