Company Performance: Profitability, revenue growth, and successful project delivery boost investor confidence, driving up demand and the stock price. Conversely, losses or project delays can negatively impact the stock.

Commodity Prices: As a resources company, TCO.AU's performance is closely tied to prices of commodities it produces (e.g., coal, iron ore). Higher commodity prices usually translate to increased revenue and profits, positively affecting the stock price.

Market Sentiment: General investor optimism or pessimism towards the resources sector or the Australian stock market overall can impact TCO.AU's stock price, regardless of company-specific news.

Economic Conditions: Strong economic growth typically increases demand for commodities, benefiting TCO.AU. Economic downturns can have the opposite effect.

Regulatory Environment: Changes in environmental regulations, mining policies, or taxes can significantly affect TCO.AU's operational costs and profitability, impacting its stock price.