Alerian is an independent provider of Master Limited Partnership (MLP) and energy infrastructure market intelligence. Its benchmarks, including the flagship Alerian MLP Index (AMZ), are widely used by industry executives, investment professionals, research analysts, and national media to analyze relative performance. As of April 28, 2017, over $18 billion is directly tied to the Alerian Index Series through exchange-traded funds and notes, separately managed accounts, and structured products.