FIRST TRUST EXCHANGE TRADED FUND NASDAQ CLEAN EDGE GREEN ENERGY INDEX FD

First Trust Nasdaq Clean Edge Green Energy ETF (the "First Trust ETF") seeks to replicate, to the extent possible, the performance of an index of U.S. listed companies designed to track the performance of clean energy companies engaged in manufacturing, development, distribution and installation of clean-energy technologies including, but not limited to, solar photovoltaics, wind power, advanced batteries, fuel cells, and electric vehicles, initially the NASDAQ® Clean Edge® Green Energy IndexSM.