Hang Seng Index

Hang Seng Index
Historical logarithmic graph of the Hang Seng Index from 1969 to 2012.
FoundationJuly 31, 1964 (1964-07-31)[1]
OperatorHang Seng Indexes Company
ExchangesHong Kong Stock Exchange
Trading symbolHSI
Constituents82
Weighting methodCapitalization-weighted
Websitehsi.com.hk
Hang Seng Index 2001–2022
Hang Seng Index
Traditional Chinese恒生指數
Simplified Chinese恒生指数
Literal meaningever-growing index
Transcriptions
Standard Mandarin
Hanyu PinyinHéng Shēng zhǐshù
Wade–GilesHeng Sheng chihshu
Yale RomanizationHéng Shēng jřshù
IPA[xə̌ŋ ʂə́ŋʈʂɻ̩̀ʂû]
Yue: Cantonese
Yale RomanizationHàhng sāng jí sóu
JyutpingHang4 sang1 zi2 sou3
IPA[hɐ̏ŋ sɐ́ːŋ tɕǐːsǒu]


The Hang Seng Index (HSI) is a market-capitalization-weighted stock market index in Hong Kong, adjusted for free float. It tracks and records daily changes in the largest companies listed on the Hong Kong Stock Exchange and serves as the primary indicator of overall market performance in Hong Kong. These 82 constituent companies represent about 58% of the capitalisation of the Hong Kong Stock Exchange.[2]

HSI was publicized on November 24, 1969, and is currently compiled and maintained by Hang Seng Indexes Company Limited, which is a wholly owned subsidiary of Hang Seng Bank, one of the largest banks registered and listed in Hong Kong in terms of market capitalisation.[3] It is responsible for compiling, publishing and managing the Hang Seng Index and a range of other stock indexes, such as Hang Seng China Enterprises Index, Hang Seng China AH Index Series, Hang Seng China H-Financials Index, Hang Seng Composite Index Series, Hang Seng China A Industry Top Index, Hang Seng Corporate Sustainability Index Series and Hang Seng Total Return Index Series. Hang Seng in turn, despite being a public company, is controlled by another listed international financial institution HSBC Holdings plc. Both HSBC Holdings and Hang Seng are constituents of the index.

  1. ^ "HANG SENG INDEXES CELEBRATES 50TH ANNIVERSARY OF HANG SENG INDEX BASE DATE" (PDF). Hang Seng Indexes Company Limited. 16 September 2014. Retrieved 4 February 2024.
  2. ^ "AHSI and its Total Return Index" (PDF). August 2015. Archived from the original (PDF) on 2015-09-24. Retrieved 2015-09-21.
  3. ^ "A new chapter for the Hang Seng Index". SCMP. 7 August 2014. Archived from the original on 8 August 2014. Retrieved 4 February 2024.

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