The Hang Seng Index (HSI) is a benchmark index that tracks the performance of the largest and most liquid companies listed on the Hong Kong Stock Exchange. The index consists of 58 constituent stocks as of June 2021, representing various sectors such as financials, utilities, real estate, and consumer goods. The index is reviewed quarterly to ensure that it reflects the changes in the Hong Kong market.
Over the past 10 years, the HSI has undergone several changes in its constituent stocks, reflecting the dynamic nature of the Hong Kong economy and its integration with mainland China. Some of the notable changes include:
- In September 2011, China Construction Bank and Bank of China replaced China Unicom and China Resources Enterprise in the index.
- In March 2012, Sands China and Tingyi Holding joined the index, while Esprit Holdings and Li & Fung were dropped.
- In June 2013, Want Want China Holdings and PICC Group were added to the index, while Aluminum Corporation of China and China Coal Energy were removed.
- In March 2014, Lenovo Group and CITIC Pacific were included in the index, while China Overseas Land & Investment and China Resources Power Holdings were excluded.
- In June 2015, Belle International Holdings and Kunlun Energy Company were replaced by Cheung Kong Property Holdings and Hengan International Group in the index.
- In September 2016, Postal Savings Bank of China and Geely Automobile Holdings joined the index, while Cathay Pacific Airways and Kunlun Energy Company were dropped.
- In March 2017, WH Group and AAC Technologies Holdings were added to the index, while Li & Fung and Sino Land Company were removed.
- In June 2018, Sunny Optical Technology Group and Country Garden Holdings were included in the index, while Cathay Pacific Airways and Kunlun Energy Company were excluded.
- In September 2019, Budweiser Brewing Company APAC and Xiaomi Corporation joined the index, while Cathay Pacific Airways and Sino Land Company were dropped.
- In March 2020, Alibaba Group Holding and Meituan Dianping were added to the index, while Sino Land Company and Want Want China Holdings were removed.
- In September 2020, NetEase and JD.com were included in the index, while Swire Pacific A and Swire Pacific B were excluded.
- In March 2021, BYD Company and WuXi Biologics joined the index, while Wharf Real Estate Investment Company and Sino Biopharmaceutical were dropped.
- In June 2021, Li Ning Company, Xinyi Glass Holdings and China Merchants Bank were added to the index, while Bank of Communications was removed.
These changes reflect the growing importance of technology, consumer and health care sectors in the Hong Kong market, as well as the increasing presence of mainland Chinese companies.