In the latest trading session, SunPower (SPWR) closed at $0.80, marking a -1.6% move from the previous day. This move lagged the S&P 500's daily loss of 0.5%. Elsewhere, the Dow gained 0.5%, while the tech-heavy Nasdaq lost 1.28%.Shares of the solar products and services company have depreciated by 70.17% over the course of the past month, underperforming the Oils-Energy sector's loss of 10.92% and the S&P 500's gain of 0.1%.The investment community will be closely monitoring the performance of SunPower in ...