Taiwan Stock Exchange market conditions: Overall bullish or bearish sentiment in the Taiwan stock market significantly impacts individual stock prices.

Company financial performance: Positive earnings reports, revenue growth, and profitability improvements generally lead to higher stock prices.

Industry trends: Trends and developments within the food and beverage industry, where 1909.TW operates, influence investor perception and valuation.

Global economic factors: Global economic conditions, such as interest rates, inflation, and trade policies, can affect investor sentiment and capital flows into or out of Taiwanese stocks.

Company-specific news: Major announcements related to product launches, mergers, acquisitions, or significant contracts directly affect the stock price.

Investor sentiment: General investor confidence, driven by various factors, can lead to buying or selling pressure on the stock.

Dividend policy: Changes in dividend payouts can attract or deter investors, impacting the stock price.

Regulatory changes: New regulations affecting the food and beverage industry in Taiwan can impact the company's operations and stock value.