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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 $4 billion in assets under management (as of March 2021).


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Q1 2021 REVIEW

by Ron Pernick

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

Over the past year markets have exhibited remarkable resiliency, with 12-month returns up considerably from the lows of March 2020 (when the global pandemic first hit). Over the 12-month period tracked, Nasdaq Clean Edge thematic indexes benchmarking clean-energy sectors showed particular resilience, outperforming the S&P 500 and the IXE (Energy Select) indexes. The energy transition solidified during this period, with the International Renewable Energy Agency finding that in the midst of the economic turmoil caused by the global pandemic, the world added a record 260 gigawatts (GW) of renewable energy capacity in 2020 (up nearly 50% from 2019), representing more than 80% of all new electricity capacity added globally last year.


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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 March 2021, First Trust ETFs tracking the indexes equaled more than than $4 billion in AUM.

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

Q1 2021 Index Performance

Clean Edge Stock Indexes