The rating of JA Solar Holdings Co., Ltd. (ADR) (NASDAQ:JASO) moves up this week, rising from a C to a B. JA Solar Holdings is engaged in the design, manufacture, and marketing of high-performance solar cells, which are made from specially processed silicon wafers. JA Solar Holdings Co., Ltd. (ADR) (NASDAQ:JASO) stock performance was 2.70% in last session and finished the day at $9.88. Traded … Continue reading Solar Stocks In News: JA Solar Holdings (NASDAQ:JASO), JinkoSolar (NYSE:JKS), Sunedison Inc (NYSE:SUNE), Yingli Green Energy (NYSE:YGE)