It seems far more cautious than many solar energy companies. There was a year-over-year gain in the solar sector, but we heard a level of the solar equipment business currently being down as much as 50% in its crystalline-silicon solar sector. Does more than 50% revenue growth and nearly 75% earnings growth sound overly optimistic? Right now there is a crack in the solar sector. The ETF for the solar sector is the Claymore/MAC Global Solar Energy (NYSE: TAN) and it shows all of the sector woes in one spot.