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^TWII on Taiwan Stock Exchange

Taiwan Stock Exchange Capitalization Weighted Stock Index

Taiwanese stock market index

The Taiwan Stock Exchange Capitalization Weighted Stock Index (Chinese: 臺灣證券交易所發行量加權股價指數), TWSE Capitalization Weighted Stock Index, or TAIEX (Chinese: 加權指數) is a stock market index for companies traded on the Taiwan Stock Exchange (TWSE). The TAIEX covers all of the listed stocks excluding preferred stocks, full-delivery stocks and newly listed stocks, which are listed for less than one calendar month. It was first published in 1967 by TWSE with 1966 being the base year with a value of 100.2 Its shares trade on Taiwan Stock Exchange under the symbol ^TWII.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1966Founded1

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Market data on display at Taiwan Stock Exchange 20210208
Photo: ​中華民國總統府, CC BY 2.0, via Wikimedia Commons3

The Taiwan Stock Exchange Capitalization Weighted Stock Index (Chinese: 臺灣證券交易所發行量加權股價指數), TWSE Capitalization Weighted Stock Index, or TAIEX (Chinese: 加權指數) is a stock market index for companies traded on the Taiwan Stock Exchange (TWSE). The TAIEX covers all of the listed stocks excluding preferred stocks, full-delivery stocks and newly listed stocks, which are listed for less than one calendar month. It was first published in 1967 by TWSE with 1966 being the base year with a value of 100. As of February 2026, there were 1066 companies listed on TAIEX.2

Subsidiaries and ownership

Owners

  • Taiwan Stock Exchange

From Wikidata.1

Timeline

  1. Jan 5, 1967Went public Listed on Taiwan Stock Exchange1
  2. 1966Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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