Taipei: The Taiwan Stock Exchange's main index began trading with a decrease, opening down by 247.96 points at 27,399.91. The initial turnover for the day stood at NT$12.99 billion, equivalent to US$424.06 million.According to Focus Taiwan, the opening figures reflect a downturn in the market as investors react to the latest economic developments. The decrease in the main index suggests cautious sentiment among market participants as they navigate current financial conditions.