Alerian MLP Index ETN (AMJB) is an exchange-traded fund in the Energy Limited Partnership category. It has $805.16M in assets, an expense ratio of 0.85% and a 5.81% dividend yield. The index measures the composite performance of MLPs that earn the majority of their cash flows from qualified activities involving energy commodities, which are referred to as index components, using a capped, float-adjusted, capitalization-weighted methodology. Qualified activities include compression, gathering and processing, liquefaction, marketing, pipeline transportation, rail terminating and storage of energy commodities.