First Trust US IPO Index Fund (the Fund) seeks investment results that correspond generally to the price and yield of an equity index called the IPOX-100 U.S. Index (the Index). The Fund will normally invest at least 90% of its assets in common stocks that comprise the Index. The Index is a modified value-weighted price index measuring the performance of the top 100 United States companies ranked quarterly by market capitalization in the IPOX Global Composite Index. The Index utilizes a 10% capping on all constituents and includes the 100 largest, typically best-performing and most liquid initial public offerings (IPOs) of the United States companies in the IPOX Global Composite Index. The IPOX Global Composite Index is reconstituted regularly with IPOs being added to the IPOX Global Composite Index at their seventh trading day upon going public and automatically exiting after 1,000 trading days or approximately four years thereafter. Its investment advisor is First Trust Advisors L.P.