Taipei: Taiwan shares ended down 439.72 points, or 1.37 percent, at 31,634.03 Monday on turnover of NT$740.40 billion (US$23.39 billion).According to Focus Taiwan, the decline in the stock market highlights the fluctuations and challenges faced by investors. The substantial turnover indicates active trading, reflecting the market's response to various factors influencing the financial environment.The performance of Taiwan shares is closely monitored by market analysts and investors alike, as it can provide insights into broader economic trends and investor sentiment.