Roth Capital Downgrades JA Solar Holdings To Neutral By: Benzinga via Benzinga May 21, 2015 at 08:05 AM EDT Analysts at Roth Capital downgraded JA Solar Holdings Co., Ltd. (ADR) (NASDAQ: JASO) from Buy to Neutral. The price target for JA ... Read More >> Related Stocks: JA Solar Holdings, Co., Ltd. - American depositary shares, each representing fiv