Company Performance: Strong financial results, increased profitability, and positive growth outlook tend to drive the stock price up. Conversely, poor performance can negatively impact investor sentiment.

Industry Trends: The overall health and outlook of the semiconductor industry greatly influence 003090.KO. Positive trends boost investor confidence.

Market Conditions: Broad market sentiment, economic indicators (like GDP growth and interest rates), and global events can significantly affect the stock price, creating volatility.

Investor Sentiment: Public perception of the company and its prospects, along with risk appetite, plays a vital role in determining demand and price.

Competitor Actions: Developments from key competitors in the semiconductor manufacturing market may alter expectations of market share and profitability.

Regulatory Changes: Government regulations and policies impacting the semiconductor industry or the South Korean economy can influence the stock's performance.