Company Performance: GPX's profitability, revenue growth, and market share directly impact its stock price. Strong financial results generally lead to higher prices.

Overall Market Conditions: General economic trends, investor sentiment, and global events can influence all stocks, including GPX.ST.

Industry Trends: Developments within the specific industry that GPX operates in, such as regulatory changes or technological advancements, play a significant role.

Investor Sentiment: The prevailing attitude of investors towards GPX and the market can cause price fluctuations, driven by fear or optimism.

News and Announcements: Any news related to GPX, such as product launches, partnerships, or executive changes, can impact the stock's value.

Interest Rates: Changes in interest rates can affect borrowing costs for GPX and investor decisions, thereby influencing the stock price.

Dividends: If GPX pays dividends, the amount and frequency can affect investor demand and the stock's attractiveness.

Supply and Demand: The basic economic principle of supply and demand dictates stock prices. High demand and limited supply increase prices.

Competitor Actions: Actions of GPX's main competitors, such as price changes or new product offerings, can impact its stock price.