• Font Size:
  • S
  • M
  • L

Amendments

Title:

The TAIEX Methodology  CH

Amended Date: 2023.04.17 
Categories: Basic Laws and Regulations

Title: Guidelines for Computation of the Taiwan Stock Exchange Capitalization Weighted Stock Index (TAIEX)(2016.07.22)
Date:
4     The formula for adjustment of the base value is as follows:
    Base value of the current day = Base value of the previous day * (Adjusted aggregate market value after the close of the previous day / closing aggregate market value of the previous day).
    Adjusted aggregate market value after the close of the previous day = Closing aggregate market value of the previous day + sum total of all adjustments in market value.
    Adjustments in market value are calculated as follows:
    Paragraph 1, Article 3 of these Directions:
    Adjusted market value = Closing price of the previous day * number of shares issued
    Paragraph 2, Article 3 of these Directions:
    Adjusted market value = Subscription price of cash capital increase * number of cash capital increase shares
    Paragraph 3, Article 3 of these Directions:
    Adjusted market value = Closing price of the commons shares before the listing date of distribution of common shares or certificates of entitlement to new shares to employees as compensation * number of shares resulting from compensation to employees
    Paragraph 4, Article 3 of these Directions:
    Adjusted market value = Ex-right reference price of common shares * total number of common shares issued as stock dividends on preferred shares
    Ex-right reference price of common stocks = (Closing price before ex-right date + cash capital increase subscription price * cash capital increase share distribution rate) / (1 + shareholder stock dividend rate + cash capital increase share distribution rate)
    Shareholder stock dividend rate = Number of capital increase shares distributed as dividends to shareholders / number of shares issued before the ex-right date
    Cash capital increase share distribution rate = Number of shares issued for the cash capital increase / number of shares issued before the ex-right date
    Paragraph 5, Article 3 of these Directions:
    Adjusted market value = Aggregate market value after the ex-right date - aggregate market value before the ex-right date
    Market value before the ex-right date = (Closing price before the ex-right date - cash dividends per share) * number of shares issued before the ex-right date
    Market value after the ex-right date = (Closing price before the ex-right date - cash dividends per share) / (1 + shareholder stock dividend rate) * number of shares issued after the ex-right date
    Paragraphs 6, 7, 8, 9, 10, 11, 12, 13, and 14, Article 3 of these Directions:
    Adjusted market value = Closing price of the previous day * change in the number of shares
    If the closing price is not available, the opening auction price of the current day may be used for the calculation of the various adjusted market values in accordance with Article 4 after the closing of the previous day.