AMNA tracks a narrow index of energy infrastructure MLP companies that are selected by distributions and weighted by market cap. Securities in the fund are linked to the price-return performance of the index, meaning only the capital appreciation is taken into account. To be included in the underlying index, midstream energy companies must have their principal office in the US or Canada and earn the majority of their cash flow from qualifying midstream activities, such as gathering and processing, liquefaction, pipelines transportation, rail terminaling, and storage of energy commodities. The index is rebalanced quarterly. As an ETN wrapper, AMNAs distribution are taxed as ordinary income. After the close on June 30, 2020 the underlying index began using the WM/Reuters USD/CAD foreign exchange rate as of 4:00 pm Eastern Time (rather than London Time) to convert the value of Canadian index constituent securities, for purposes of determining distributions and Index values.