yangphoto/E+ via Getty Images Introduction A bit less than a year ago, I published an article concerning the Global Clean Energy Index ETF (ICLN) suggesting that investors would be buying into extreme valuations across the board and that the ETF wasn’t attractive despite having come significantly down from its peak at $32.5 to $22.7 at that point in time. The ICLN has delivered -16% returns since then, while the S&P 500 returned 16.85% meanwhile. I’ve also covered both Invesco Solar Portfolio ETF (TAN) and First Trust Global Wind Energy ETF (FAN) during the same time, having been skeptic of the valuations, especially for the solar companies who was trading at very high price to sales ratios. As such, one of the positives about ICLN has been its diversification across green energy. The top ten holdings at that time traded with an average P/S ratio of 12.8 and an average price…
