Axiom upgrades solar sector two notches on China demand outlook By: TalkMarkets October 06, 2016 at 16:24 PM EDT esearch firm Axiom upgraded its rating on the solar energy sector two notches to Overweight from Underweight. Read More >> Related Stocks: Canadian Solar Inc First Solar JA Solar Holdings, Co., Ltd. - American depositary shares, each representing fiv Sunpower Corp Tesla, Inc. Yingli Green Energy Holding Company