Wikipedia
QCLN
The First Trust Clean Edge Green Energy ETF (NYSE: QCLN) is an exchange-traded fund (ETF) that contains only US companies that produce or distribute clean energy. It is listed in the United States on the NASDAQ stock exchange and managed by First Trust Advisors L.P.
The Fund is an equity index that tracks the performance of clean energy companies that are publicly traded in the US and is based on the NASDAQ Clean Edge U.S. Liquid Series Index (Symbol: CELS).