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Relevant Laws

Title:Operating Rules of the Taiwan Stock Exchange Corporation (2022.04.28)
Article 59     When determining the daily price fluctuation limits for competitive auction trading of an initial listing of securities, unless otherwise provided by law, reference price shall be made to the public offering price before the listing date. Where the securities in the initial listing are already traded on the Taipei Exchange, reference shall be made to the closing price on the last trading day before the cessation of its Taipei Exchange trading. Competitive auction trading of the common stocks of a TIB listed company or a TIB primary listed company that is relisted as TWSE listed company or TWSE primary listed company, as applicable, shall refer to the price of public sale prior to relisting as the basis of price fluctuation limits.
    When a company limited by shares or a foreign company converts its shares to another newly established company or another already TWSE listed or TWSE primary listed existing company under Chapter IV-1, the daily price fluctuation limits for an initial listing of common shares of such newly established company shall be calculated on the basis of the following reference price: the price arrived at by multiplying (the closing price on the last trading day of the common shares of the TWSE or Taipei Exchange listed company or TWSE or Taipei Exchange primary listed company whose converted common shares are anticipated to account for the greatest proportion of the anticipated issued common shares of the newly established company) by (the number of shares required for exchange of one new share); the daily price fluctuation limits for securities other than common shares of the newly established company or the already TWSE listed or TWSE primary listed existing company shall be calculated on the basis of the following reference price: the price arrived at by multiplying (the closing price on the last trading day of the TWSE listed security or Taipei Exchange listed security anticipated to account for the highest proportion of those converted into the security) by (the number of shares [or trading units] required for exchange of one share [or one trading unit] of the new security).
    Where there is no closing price for the last trading day of any TWSE listed security used for the calculation of a reference price under the preceding paragraph, the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2 herein shall be used. Where there is no closing price for the last trading day of the Taipei Exchange listed security used for the calculation of reference price referred to in paragraph 1 or 2, the basis price for the opening of trading on the next day, determined in accordance with the provisions of the GreTai Securities Market Rules Governing Securities Trading on the Taipei Exchange, shall be used.
    The daily price fluctuation limits on initial listings of new capital stock, certificates evidencing right to subscribe to new shares, and certificate evidencing payment shall be determined with reference to the closing price of the old shares on the previous business day minus the value difference on rights; provided where the difference on rights cannot be determined, the price fluctuation limit shall be determined with reference to the closing price of the old shares on the previous business day. Where there is no closing price for the old shares on the previous business day, the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2 herein shall be used.
Article 59-1     Where trading of the TWSE listed securities of a TWSE listed company has been suspended or halted, unless otherwise provided, the price fluctuation limit of such securities on the first day of resumption of the suspended or halted trading shall be calculated based on the closing price of the last trading day. If there is no closing price for the last trading day, it shall be replaced by the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2 herein.
Article 62     The fluctuation unit (tick) of the prices of trading orders shall be determined as follows:
  1. Where the market price of a stock is less than 10 dollars per share, the tick shall be 1 cent, or 5 cents if the price is from 10 dollars to less than 50 dollars, or 10 cents if the price is from 50 dollars to less than 100 dollars, or 50 cents if the price is from 100 dollars to less than 500 dollars, or 1 dollar if the price is from 500 dollars to less than 100 dollars, or 5 dollars if the price is 1,000 dollars or more.
  2. The tick for government bonds and corporate bonds shall be five cents. The tick for convertible bonds shall be 5 cents if the price is less than 150 dollars, or 1 dollar if the price is from 150 dollars to less than 1,000 dollars, or 5 dollars if the price is 1,000 dollars or more.
Article 67     In the trading of stocks, where a listed company has set a date for suspension of changes to the shareholders register (i.e. a book closure date) based on the record date for distributing dividends, bonuses or other interests pursuant to paragraph 2 of Article 165 of the Company Act, all settlements conducted after the book closure date shall be ex-dividend and ex-rights; provided that the provisions of this Article shall not apply to a capital increase out of employee compensation.
    The daily price fluctuation limit after the distribution of dividends shall be based on the closing price of the previous day minus the amount of dividends and bonuses that have been distributed.
    The daily price fluctuation limit for the ex-rights date shall be calculated based on the following:
  1. Where a listed company uses retained earnings or capital surplus to increase capitalization, the calculation of daily price fluctuation limit for the ex-rights date shall be based on the closing price of the previous day minus the value of the distributed stock dividends.
  2. Where a listed company uses cash capital to issue new stocks, the calculation of daily price fluctuation limit for the ex-rights date shall be handled by one of the following methods:
    1. In case under cash capitalization the issue price of the newly issued stock is lower than the closing price on the day immediately preceding the ex-rights date, the daily price fluctuation limit for the ex-rights date shall be the closing price on the day immediately preceding the ex-rights date for the purpose of determining the maximum high, and the closing price on the day immediately preceding the ex-rights date minus the value of the newly issued cash capitalization stock for the purpose of calculating the maximum low.
    2. In case under cash capitalization the issue price of the newly issued stock is higher than the closing price on the day preceding the ex-rights date, the daily price fluctuation limit on the ex-rights date shall be the closing price on the day immediately preceding the ex-rights date minus the value of the newly issued cash capitalization stock for the purpose of determining the maximum high, and the closing price on the day immediately preceding the ex-rights date for the purpose of calculating the maximum low.
  3. Where a listed company simultaneously uses retained earnings or capital surplus to increase capitalization, and also uses cash capital to issue new stocks, the daily price fluctuation limit shall be calculated as follows:
    1. In case under cash capitalization the issue price of the newly issued stock is lower than the closing price of the day prior to the ex-rights date minus the value of the capitalized retained earnings or capital surplus, the daily price fluctuation limit for the ex-rights date shall be the value of the closing price on the day immediately preceding the ex-rights date minus the value of the capitalized retained earnings or capital surplus for the purpose of calculating the maximum high, and the closing price on the day immediately preceding the ex-rights date minus the value of the capitalized retained earnings or capital surplus and value of the newly issued cash capitalization stock for the purpose of calculating the maximum low.
    2. In case under cash capitalization the issue price of the newly issued stock is higher than the closing value of the day prior to the ex-rights date minus the value of the capitalized retained earnings or capital surplus, the daily price fluctuation limit for the ex-rights date shall be the value of the closing price on the day immediately preceding the ex-rights date minus the value of the capitalized retained earnings or capital surplus and the value of the newly issued cash capitalization stock for the purpose of calculating the maximum high, and the closing price on the day immediately preceding the ex-rights date minus the value of the capitalized retained earnings or capital surplus for the purpose of calculating the maximum low.
  4. In case any of the procedures in the above subparagraphs cannot be suitably used, the daily price fluctuation limit for the ex-rights date shall be determined by the TWSE in view of the current circumstances.
    The value of the rights referred to in the preceding paragraph shall be determined by the TWSE.
    Where there is no preceding day's closing price on the commencement date of ex-dividend or ex-rights trading, the closing price used as the basis for the calculations referred to in paragraphs 2 and 3 shall be replaced by the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2 herein.
    The matters relating to ex-dividend and ex-rights in connection with securities eligible for margin purchase and short sale shall be handled in accordance with the Operating Rules for Securities Firms Handling Margin Purchases and Short Sales of Securities or the Operating Rules for Securities Finance Enterprises Handling Margin Purchases and Short Sales.
Article 67-1     Where a listed company carries out procedures for capital reduction and issuance of new replacement shares, the daily price limits on its stock for the date on which the stock begins to list after the capital reduction shall be calculated based on the following methods according to the circumstances of the capital reduction:
  1. For a capital reduction for purposes of making up losses, the price limits shall be calculated on the basis of the closing price on the last trading day before the issuance of the new replacement shares divided by the ratio of the post-reduction number of issued shares to the original number of issued shares.
  2. For a capital reduction by cash refund of capital stock, the price limits shall be calculated on the basis of the closing price on the last trading day before the issuance of the new replacement shares minus the cash amount refunded per share, and then divided by the ratio of the post-reduction number of issued shares to the original number of issued shares.
  3. For a demerger accompanied by capital reduction:
    1. If the stock of the transferee company of the demerger, on the date that its listed trading begins after the capital reduction, is stock of a TWSE listed or Taipei Exchange listed company, the price limits shall be calculated on the basis of the closing price on the last trading day before the issuance of the new replacement shares minus the value calculated by the auction reference price at market opening on the date of commencement of listed trading of the TWSE listed shares of the transferee company of the demerger obtained per share after the capital reduction, or the value calculated by the basis price for the opening of trading of the Taipei Exchange listed shares, and then divided by the ratio of the post-reduction number of issued shares to the original number of issued shares.
    2. If the stock of the transferee company of the demerger is stock of a company that is neither TWSE listed nor Taipei Exchange listed, the calculation shall be done by the method below, and the higher figure shall be the basis for calculation of the upper price limit and the lower figure shall be the basis for calculation of the lower price limit, and the price arrived at by processing, pursuant to Article 62 herein, the average of the two figures shall be taken as the auction reference price at market opening:
      1. The reference price calculated by first calculating the market capitalization by multiplying the closing price of the last trading day prior to the issuance of the new replacement shares by the original number of issued shares, then calculating the market capitalization after the capital reduction by the ratio of the company's net worth after the capital reduction to the company's original net worth, and then further dividing it by the number of issued shares after the capital reduction.
      2. The reference price calculated by the closing price of the last trading day prior to the issuance of the new replacement shares minus the net worth of the shares of the transferee company of the demerger obtained in replacement per share, and then divided by the ratio of the post-reduction capital amount to the original capital amount.
    Where there is no closing price for the last trading day prior to the issuance of new replacement shares referred to in the preceding paragraph, it shall be replaced by the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2 herein.
Article 67-2      For a TWSE listed company carrying out procedures for the issuance of new replacement shares due to a change of par value, the price fluctuation limits of the stock on the commencement date of trading on the TWSE after the change of par value shall be calculated based on the closing price on the last trading day before the issuance of the new replacement shares divided by the ratio of the number of issued shares after the change of par value to the original number of issued shares.
    In the event there was no closing price on the last trading day before the issuance of the new replacement shares, the calculation shall be based on the price determined by the principles set out in Article 58-3, paragraph 4, subparagraph 2.