The Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in the securities that comprise the Index. The Fund, using an indexing investment approach, attempts to replicate, before fees and expenses, the total return performance of the Index. The Fund will generally employ a full replication strategy, meaning that it will normally invest in all of the securities comprising the Index in proportion to their weightings in the Index. The Index is determined, composed and calculated by Bloomberg Index Services Limited (BISL or the Index Provider). The Index Provider reserves the right to make exceptions when applying the methodology if the need arises to ensure that the Index continues to achieve its objective. In addition, the Index Provider may revise Index policy covering rules for selecting companies, treatment of dividends, share counts or other matters. First Trust Advisors L.P., the Fund's investment advisor, maintains no discretion with regard to the compilation and composition of the Index or any changes thereto.