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Relevant Laws

Title:Operating Rules of the Taiwan Stock Exchange Corporation (2022.04.28)
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 63     The daily price fluctuation limits of securities, unless otherwise approved by the Competent Authority, shall be 10 percent above and below the auction reference price at market opening of the current trading session for stocks, and 5 percent above and below the auction reference price at market opening of the current trading session for bonds; provided, however, that if the price fluctuation limit is less than the minimum tick size, the minimum tick size shall be the price fluctuation limit, and the price may not fall lower than the minimum tick size.
    For newly TWSE listed common stocks other than those converted from Taipei Exchange listed stocks to TWSE listed stocks, there will be no price fluctuation limit imposed for the 5 trading days beginning from the listing date, and the minimum price shall be one cent.
    Paragraph 1 shall apply mutatis mutandis to price fluctuation limits for trading of the common stocks of a TIB listed company or a TIB primary listed company; provided in the case where its stocks are relisted as TWSE stocks, there are no price fluctuation limits for the first 5 trading days from the first listing day, during which period the lowest price shall be 1 cent.