First Trust Morningstar Dividend Leaders Index Fund (FDL) Exchange: NYSE ARCA

The Fund will normally invest at least 90% of its net assets (including investment borrowings) in the common stocks that comprise the Index. The Fund, using an indexing investment approach, attempts to replicate, before fees and expenses, the performance of the Index. The Fund's investment advisor seeks a correlation of 0.95 or better (before fees and expenses) between the Fund's performance and the performance of the Index; a figure of 1.00 would represent perfect correlation. The Index is developed, maintained and sponsored by Morningstar, Inc. (the "Index Provider"). The Index Provider continually reviews the Index methodology to account for factors such as evolving market trends, feedback received from market participants or as an endeavor to adopt evolving best practices in the industry. Such reviews may cause the Index Provider to change the Index construction or calculation methodology, as well as the Index's treatment of various corporate actions. Such changes can impact the Index's selection universe, portfolio composition or the Index's on-going maintenance.The Index is designed to measure the performance of the 100 highest-yielding stocks that have a consistent record of dividend payment and have the ability to sustain their dividend payments. The securities comprising the Morningstar® US Market IndexSM (the "Base Index") serve as the Fund's selection universe. The Base Index is a broad market index representing 97% of U.S. equity market capitalization. To be eligible for inclusion in the Base Index, a security must be listed on a qualifying U.S. securities exchange and be issued by a company incorporated in the United States or its territories and whose primary stock market activities are carried out in the United States. Securities issued by companies incorporated outside the United States and its territories may nonetheless be included in the Base Index if the company files a Form 10-K/10-Q or equivalents, and its primary business activities, as measured by the geographic distribution of revenue and assets, are conducted in the United States. The Base Index also excludes securities with more than 10 non-trading days in the prior quarter and those securities not ranked in the top 75% of the companies in the investable universe based on liquidity score, which is the average of a security's rank on each of the following measures: (i) average monthly trading volume in U.S. dollars during the six calendar months immediately before reconstitution or, in the case of corporate entities younger than six months, since the security was first issued; and (ii) the security's lowest two months' total trading volume during the six calendar months immediately before reconstitution (the months need not be sequential).From this universe, the Index further excludes any securities issuing dividend payments that do not constitute qualifying income (i.e., real estate investment trusts). The Index also excludes securities issued by companies with a five-year indicated dividend per share growth of less than zero and a coverage ratio of less than one. A security's coverage ratio equals its one-year forecast of earnings per share divided by its indicated dividend per share. All remaining securities are then ranked by indicated dividend yield and the top 100 securities are selected for inclusion in the Index. The Index weights the component securities based upon an indicated dividend dollar weighted methodology. Weights are adjusted so that no individual security has a weight of greater than 10% and securities with a weight of more than 5% do not collectively exceed 50% of the entire portfolio.The Index is rebalanced quarterly and reconstituted annually and the Fund will make corresponding changes to its portfolio shortly after the Index changes are made public. The Index's quarterly rebalance schedule may cause the Fund to experience a higher rate of portfolio turnover. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated. As of March 31, 2020, the Index was composed of 99 securities and the Fund had significant investments in energy companies, although this may change from time to time. To the extent the Fund invests a significant portion of its assets in a given jurisdiction or investment sector, the Fund may be exposed to the risks associated with that jurisdiction or investment sector.