Company Performance: SOMB.F's profitability, revenue growth, and overall financial health significantly impact its stock price. Strong earnings typically lead to higher stock prices.

Market Sentiment: General investor confidence or fear, often influenced by economic news or global events, can drive SOMB.F's stock price up or down.

Industry Trends: The performance of the broader real estate investment trust (REIT) sector, specifically those focused on mortgage-backed securities, affects SOMB.F. Positive industry trends generally support the stock price.

Interest Rates: Changes in interest rates, particularly those set by central banks, are crucial for mortgage REITs like SOMB.F. Higher rates can negatively impact profitability and therefore stock price.

Dividend Yield: As an mREIT, SOMB.F's dividend yield is a key attraction for investors. A higher dividend yield compared to peers can increase demand and potentially boost the stock price.

Management Decisions: Strategic decisions made by SOMB.F's management team, such as asset allocation or hedging strategies, can influence investor perception and affect the stock price.

Economic Conditions: Overall economic conditions, including GDP growth, employment rates, and inflation, impact the demand for real estate and mortgage-backed securities, thus affecting SOMB.F's stock price.