KeyBanc upgraded Enphase Energy (NASDAQ: ENPH) to a Sector Weight rating, reflecting positive sentiment in the renewable energy sector.Virginia Retirement Systems significantly increased its investment in Enphase Energy by 134.5%, showcasing strong institutional support.The stock's recent performance and high trading volume indicate active interest and confidence among investors.Enphase Energy (NASDAQ: ENPH) is a prominent player in the renewable energy sector, specializing in solar energy solutions. The co ...