Taipei: The Taiwan Stock Exchange's main index opened up 497.62 points at 28,029.88 Monday on turnover of NT$17.71 billion (US$575.34 million).According to Focus Taiwan, the opening surge in the stock exchange indicates a positive investor sentiment driving the market higher. The early trading activity reflects a significant boost from the previous sessions, suggesting a favorable environment for market participants.The increased turnover highlights active trading on the exchange, pointing to substantial interest from both domestic and international investors. This development is being closely monitored by financial analysts who are assessing the implications for the broader economic outlook.