Alumina Price: Alumina is ALUPG's main product. Higher alumina prices usually translate to higher revenues and profits, increasing the stock price. Conversely, lower alumina prices can decrease the stock price.

Production Costs: Factors like energy costs (electricity is a major input in alumina production) and labor costs can significantly impact profitability. Higher costs erode margins, potentially lowering the stock price.

Global Economic Conditions: Economic slowdowns can reduce demand for aluminum (and therefore alumina), impacting sales and potentially the stock price. Strong economic growth typically supports demand and prices.

Company Performance: ALUPG's production volumes, efficiency, and ability to manage costs are crucial. Positive performance generally leads to higher investor confidence and a higher stock price.

Market Sentiment: Overall investor sentiment towards the aluminum and mining sectors can influence ALUPG's stock price. Optimism in the sector could drive up the price, while pessimism might drag it down.

Regulatory Environment: Changes in environmental regulations or trade policies (e.g., tariffs on alumina imports) can affect ALUPG's operations and profitability, thus affecting the stock price.

Currency Fluctuations: As a global company, ALUPG's earnings are affected by exchange rate fluctuations. Changes in the EUR/USD exchange rate, for example, can impact reported earnings and the stock price.

Competitor Activity: Actions by major alumina producers, such as production cuts or expansions, can influence alumina prices and, consequently, ALUPG's stock price.

Geopolitical Risks: Political instability in regions where ALUPG operates or sources raw materials can disrupt supply chains and increase risk, potentially impacting the stock price.