iShares Global Clean Energy ETF (NASDAQ:ICLN) seeks to track the investment results of the S&P Global Clean Energy IndexTM composed of global equities in the clean energy sector. The index is designed to track the performance of approximately 100 clean energy-related companies. The fund generally invests at least 80% of its assets in the component securities of the index and in investments that have economic characteristics that are substantially identical to the component securities of the index and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents, as well as in securities not included in the index. It is non-diversified.

This iShares fund is among the most liquid and well-established clean energy ETFs out there. The fund debuted in 2008, and it currently has more than $6 billion in assets under management. It holds all manner of clean energy stocks, from U.S.-based hydrogen fuel cell company Plug Power (PLUG) to European electric utility Verbund that is a leader in hydroelectric dams and wind power technology. ICLN has an expense ratio of 0.46%. There are only 33 total holdings in this ETF, but they make up a great mix of renewable energy plays around the globe. Currently, this fund has a 1-year daily total return of 59.54% and 3-year daily total return of 37.40%.

Top 10 Holdings (48.26% of Total Assets)

Name	Symbol	% Assets
Vestas Wind Systems A/S	VWS	7.93%
Enphase Energy Inc	ENPH	6.63%
Orsted A/S	ORSTED	5.83%
Plug Power Inc	PLUG	4.81%
Xcel Energy Inc	XEL	4.14%
NextEra Energy Inc	NEE	4.05%
SolarEdge Technologies Inc	SEDG	3.99%
Iberdrola SA	IBE.BC	3.95%
Enel SpA	ENEL.MI	3.89%
SSE PLC	SSE.L	3.04%