Investors are staring on: JA Solar Holdings NASDAQ:JASO), ReneSola (NYSE:SOL), GT Advanced (NASDAQ:GTAT), Hanwha Solarone (NASDAQ:HSOL)

JA Solar Holdings Co. Ltd. (ADR) (NASDAQ:JASO) (Shanghai) has announced that its multicrystalline silicon solar photovoltaic (PV) cells have achieved conversion efficiencies higher than 19%. JA Solar Holdings Co., Ltd. (ADR)(NASDAQ:JASO)stockopened at $9.73 in last session, and closed at $10.84, while the day range ofJA Solar Holdings Co., Ltd. (ADR)(NASDAQ:JASO)stock is $9.68 – $10.92. The stock showed a positive weekly performance of 12.80%.

ReneSola Ltd(ADR) (NYSE:SOL) has provided 10,000 of its high efficiency solar PV modules to Chevron Energy Solutions, one of the largest installers of solar power in the United States, for a 3.1MW multi-site project in Lemoore, California. ReneSola Ltd. (ADR)(NYSE:SOL)stockopened at $3.29, in last session and closed at $3.58, by gaining 8.81%. The 52 week range of $1.25 – $6.00. Company’s market capitalization is $321.08M.

GT Advanced Technologies Inc. (NASDAQ:GTAT) announced that it has now acquired the exclusive rights from Kya Technologies, for the latter’s plasma vapor deposition process technology as well as the know-how. GT Advanced Technologies Inc. (NASDAQ:GTAT)stock increased8.31% and finished the last session at $12.64. The EPS of the stock remained-1.71. Company’s market capitalization is $1.54B.

Hanwha Solarone Co Ltd (NASDAQ:HSOL) lost about 6% as solar stocks declined after a commission for the European Union proposed changes in the bloc’s alternative energy target. Hanwha Solarone Co Ltd(NASDAQ:HSOL)stock opened the session at $2.95, and closed the session at $3.12.The 52 week range of theHanwha Solarone Co Ltd(NASDAQ:HSOL) stock remained $0.86 – $5.70and the day range was $2.95 – $3.17.