The Investment Funds in Canada course explains that volatility measures the degree of price fluctuation over time and is commonly used as a proxy for investment risk. Among major asset classes, common shares (equities) exhibit the highest expected volatility due to their sensitivity to business performance, economic cycles, interest rates, and investor sentiment.

Common shareholders are residual claimants on a corporation’s earnings and assets. They are paid dividends only after all other obligations—such as interest on debt and preferred share dividends—have been met. As a result, common share prices fluctuate widely based on changes in earnings expectations, economic conditions, and market psychology. The CIFC text highlights that equities offer higher expected returns precisely because they carry higher risk and volatility.

Preferred shares are generally less volatile than common shares because they provide fixed dividend payments and have priority over common shares. Government bonds have the lowest volatility due to high credit quality and predictable cash flows. Corporate bonds are riskier than government bonds but still far less volatile than equities.

Because common shares are most exposed to market and company-specific risk, they experience the greatest price variability. Therefore, Option C is the correct and fully verified CIFC answer.