Commodity Prices: Interfor's earnings heavily rely on lumber prices; fluctuations directly impact revenue and profitability.

Housing Market: North American housing starts and renovation activity influence lumber demand, thus affecting Interfor's sales volumes and prices.

Interest Rates: Higher interest rates can dampen housing demand, reducing lumber consumption and negatively affecting Interfor's stock price.

Exchange Rates: Currency fluctuations, particularly between the Canadian and US dollar, impact Interfor's competitiveness and profitability in export markets.

Forest Fires/Supply Disruptions: Natural disasters like forest fires can disrupt lumber supply, causing price volatility and affecting Interfor's production and earnings.

Trade Policies: Tariffs and trade restrictions on lumber imports/exports can significantly impact Interfor's market access and profitability.

Company Performance: Interfor's operational efficiency, cost management, and production volumes influence investor confidence and stock valuation.

Overall Market Conditions: Broader economic trends and stock market sentiment can affect investor appetite for cyclical stocks like Interfor.

Industry Trends: Shifts in building materials preferences or technological advancements in lumber production can impact Interfor's long-term prospects.

Investor Sentiment: General optimism or pessimism towards the lumber industry and Interfor's management can influence buying and selling pressure on the stock.