The Camino solar index has fallen 5.8 % since last Friday continuing its adjustment driven by concerns about slowing market demand.   In addition to plunging 76% YTD, SOLAR is also the most volatile of the sustainable energy sectors we track and approximately twice as volatile as the S&P500: 

Examining similar data shows that Renewable Generation, Fuel Cells, and LED & Lighting may have passed their peak volatility.    Biofuels, like Solar, may not have started to decline.  

A daily volatility tool has been added to the site for subscribers to access at PurePlay Indices>Daily volatility.  Up-to-date plots can be created for the Camino Indices, broad market comparables, and selected sustainable mutual funds and ETFs.