The First Trust NASDAQ® Clean Edge® Green Energy Index Fund is an exchange-traded index fund. The objective of the Fund is to seek investment results that correspond generally to the price and yield (before the Fund's fees and expenses) of an equity index called the NASDAQ® Clean Edge® Green Energy IndexSM The index is a modified market capitalization weighted index designed to track the performance of clean energy companies that are publicly traded in the United States and includes companies engaged in manufacturing, development, distribution and installation of emerging clean-energy technologies including, but not limited to, solar photovoltaics, biofuels and advanced batteries.