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Clean Edge, Inc. is a developer and publisher of thematic stock indexes tracking clean energy, transportation, water, and the grid. The firm’s first index, the Nasdaq Clean Edge Green Energy Index (CELS), was launched with Nasdaq in 2006. Financial products tracking the firm’s indexes and universes exceed $3 billion in assets under management (as of January 2021).


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Q4 2020 REVIEW

by Ron Pernick

Quarterly overview of stock index performance and the top trends impacting the state of clean tech.

2020 proved to be a banner year for thematic clean-energy and broader clean-tech indexes. A combination of factors is at play, including improving economics (solar and wind power are now among the most cost competitive sources of new electricity capacity additions in the U.S. and abroad); record-breaking growth of multiple clean-energy sectors during the global COVID-19 pandemic (shining a light on the resilience of wind and solar markets, in particular); and the expansion of green stimulus plans across Europe, Asia, and the U.S. (with the election win of Joe Biden being the proverbial feather in the cap).


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Published by NASDAQ in collaboration with Clean Edge, Clean Energy & Smart Grid Infrastructure describes the trends and developments currently driving the clean energy sector. 

Stock Indexes

Nasdaq-Clean Edge stock indexes cover U.S. and global clean energy, water, and grid infrastructure markets. As of January 2021, First Trust ETFs tracking the indexes equaled more than $3 billion in assets under management (AUM). 

  • CELS: U.S. clean energy 
  • GWE: Global wind  
  • HHO: U.S. potable water and wastewater 
  • QGRD: Global smart grid and grid infrastructure 

Q4 2020 Index Performance

Clean Edge Stock Indexes