The Fund aims to provide higher returns (before charges and tax are deducted from the Fund) than the Markit iBoxx GBP Corporates Index plus 1% per year, over three-year periods. To achieve its objective the Fund will invest at least 80% of its value in bonds that have a credit rating of investment grade and are issued in sterling or are hedged back to sterling. The bonds may be issued by companies and supranational or government-backed organisations which may be located anywhere in the world. The types of bond the Fund may invest in include covered bonds and asset backed securities. The Fund may also invest up to 20% of its value in other types of bonds such as bonds issued by governments, bonds with lower credit ratings, convertible bonds, contingent convertible bonds and shares (equities) of companies arising from convertible bonds.