Taipei: The Taiwan Stock Exchange's main index opened up 269.46 points at 22,001.48 on Tuesday. The early trading session saw a turnover of NT$7.42 billion, equivalent to US$250.81 million.According to Focus Taiwan, the increase in the index suggests a positive start for the market this week. The rise in points reflects investor confidence and activity in the financial markets. The turnover indicates the volume of trade and suggests an active participation by investors.Market analysts are monitoring the developments closely as the trading day progresses. The performance could set the tone for the rest of the week in the Taiwan Stock Exchange.