The fund gains exposure to a wide spectrum of public, US investment grade debt securities by tracking an index weighted by market value. These securities are generally issued by government, corporate and other issuers. Investments may also include fixed income securities with different maturity dates, issue currencies, methodologies for interest payments (such as fixed or floating rate) and other attributes. Although the fund aims to replicate the performance of its index, the manager may also use a sampling methodology that uses quantitative analysis to select its investments. Any foreign currency exposure in the portfolio is hedged back to the Canadian dollar.