The fund holds a variety of CAD-denominated mortgage-backed securities (MBS) guaranteed by the Canada Mortgage and Housing Corporation (CMHC). The market-value-weighted index consists of fixed-rate NHA MBS with a pool type of 975. Eligible securities must have more than one year until maturity. The index is rebalanced monthly. The fund aims to hold MBS in parallel proportions as they are reflected in the index. The Manager may also use a sampling methodology, which uses quantitative analysis to select bonds that resemble index constituents in terms of key risk factors, performance attributes, industry weightings, market capitalization and other appropriate financial characteristics.