Iron Ore Prices: FMG's primary business is iron ore. Higher iron ore prices mean higher revenue and profits, driving the stock price up. Lower iron ore prices lead to the opposite effect.

Production Volumes: The amount of iron ore FMG produces and ships significantly impacts its earnings. Increased production generally translates to higher stock value.

Australian Dollar Exchange Rate: As an Australian company selling commodities priced in USD, FMG's profits are affected by the AUD/USD exchange rate. A weaker AUD boosts earnings.

Global Economic Growth: Strong global economic growth, particularly in China (a major iron ore importer), increases demand for iron ore, supporting FMG's stock price.

Company-Specific News: News regarding FMG's operations, exploration projects, debt levels, dividend policy, and management changes can influence investor sentiment and stock price.

Market Sentiment: Overall market sentiment towards the mining sector and resource stocks impacts FMG. Positive sentiment can lead to increased investment.

Interest Rates: Changes in interest rates, particularly in Australia and globally, can affect FMG's borrowing costs and, consequently, its profitability and valuation.

Geopolitical Factors: Global political events, trade tensions, and government regulations related to mining and international trade can influence investor confidence.