ALERIAN MLP ETF seeks investment results that correspond (before fees and expenses) to the price and yield performance of its underlying index, the Alerian MLP Infrastructure Index (the Index). The Index is a rules based, modified capitalization weighted, float adjusted index intended to give investors a means of tracking the overall performance of the United States energy infrastructure Master Limited Partnership (MLP) asset class. The Index is comprised of 25 energy infrastructure MLPs. The fund will invest at least 90% of its total assets in securities, which comprise the Index (or depositary receipts based on such securities). ALPS Advisors, Inc. is the investment adviser to the fund.