Taipei: The Taiwan Stock Exchange's main index experienced a decline as it opened down 123.92 points at 45,685.27 on Wednesday. The initial turnover was reported at NT$7.96 billion, equivalent to approximately US$249.93 million. According to Focus Taiwan, the decline in the main index reflects a cautious sentiment among investors, affecting the market's opening performance. The turnover figures indicate significant trading activity as the market adjusts to the opening downturn.