Fund Description: First Trust Mid Cap US Equity Select ETF is an exchange-traded index fund or Index ETF which is a separate investment portfolio of the First Trust Exchange-Traded Fund VI, an open-end investment management company. INVESTMENT OBJECTIVE: The First Trust Mid Cap US Equity Select ETF seeks investment results that correspond to the price and yield, before the Fund's fees and expenses, of the Nasdaq Riskalyze Mid Cap US Equity Select Index. INDEX DESCRIPTION: The Nasdaq Riskalyze Mid Cap US Equity Select Index is designed to select dividend-paying US mid cap securities that are included in the Nasdaq US 600 Mid Cap Index (the Base Index). The Base Index is a comprehensive, rules-based index designed to measure stock market performance of mid cap US companies, as determined by Nasdaq. The Index is rebalanced and reconstituted on a quarterly basis. The securities of companies represented in the Index generally have market capitalizations that are consistent with the name of the Index. FUND STRATEGY: The Fund will normally invest at least 90% of its net assets (including investment borrowings) in common stocks that comprise the Index. The Fund, using an indexing investment approach attempts to replicate the performance of the Index. The Fund will be concentrated in an industry or a group of industries to the extent that the Index is so concentrated. FUND MANAGEMENT: First Trust Advisors L.P. serves as the investment adviser to the Fund.