| Stock |
Symbol |
 Weight |
Sector |
| Plant Health Care PLC | | 0.2% | |
Westport Innovations Inc. | *WPT | 0.3% | |
Accsys Technologies PLC | | 0.3% | |
EnerNOC Inc. | ENOC | 0.3% | |
Kadant Inc. | KAI | 0.4% | |
Fuel Tech Inc. | FTEK | 0.5% | |
Gurit Holding AG | | 0.5% | |
Vaisala Oyj | | 0.5% | |
Zoltek Cos. | ZOLT | 0.5% | |
Landec Corp. | LNDC | 0.5% | |
bwt AG | | 0.5% | |
Fuel Systems Solutions Inc. | FSYS | 0.5% | |
Solar Millennium AG | | 0.5% | |
WaterFurnace Renewable Energy Inc. | *WFI | 0.6% | |
Polypore International Inc. | PPO | 0.6% | |
Energy Recovery Inc. | ERII | 0.6% | |
Interface Inc. (Cl A) | IFSIA | 0.6% | |
RuggedCom Inc. | *RCM | 0.6% | |
American Superconductor Corp. | AMSC | 0.7% | |
Lindsay Corp. | LNN | 0.7% | |
Meyer Burger Technology AG | | 0.7% | |
Roth & Rau AG | | 0.7% | |
Grontmij N.V. | | 0.7% | |
Badger Meter Inc. | BMI | 0.7% | |
Insituform Technologies Inc. (Cl A) | INSU | 0.7% | |
Power Integrations Inc. | POWI | 0.7% | |
Energy Conversion Devices Inc. | ENER | 0.7% | |
Hyflux Ltd. | | 0.7% | |
Chloride Group PLC | | 0.8% | |
Hansen Transmissions International N.V. | | 0.8% | |
Tomra Systems ASA | | 0.8% | |
Eurofins Scientific S.E. | | 0.8% | |
Telvent GIT S.A. | TLVT | 0.8% | |
Asahi Holdings Inc. | | 0.8% | |
GT Solar International Inc. | SOLR | 0.8% | |
Saft Groupe S.A. | | 0.8% | |
Martek Biosciences Corp. | MATK | 0.9% | |
EnerSys Inc. | ENS | 0.9% | |
Hexcel Corp. | HXL | 1.0% | |
centrotherm photovoltaics AG | | 1.0% | |
Kingspan Group PLC | | 1.1% | |
arcadis N.V. | | 1.1% | |
Energy Development Corp. | | 1.1% | |
Horiba Ltd. | | 1.1% | |
Woodward Governor Co. | WGOV | 1.2% | |
Ormat Technologies Inc. | ORA | 1.3% | |
Dionex Corp. | DNEX | 1.3% | |
ESCO Technologies Inc. | ESE | 1.3% | |
Baldor Electric Co. | BEZ | 1.4% | |
CLARCOR Inc. | CLC | 1.4% | |
China High Speed Transmission Equipment Group Co. Ltd. | | 1.4% | |
SunPower Corp. (Cl A) | SPWRA | 1.8% | |
Tetra Tech Inc. | TTEK | 1.8% | |
Cree Inc. | CREE | 1.8% | |
Itron Inc. | ITRI | 1.9% | |
Renewable Energy Corp. ASA | | 1.9% | |
Trimble Navigation Ltd. | TRMB | 1.9% | |
Nalco Holding Co. | NLC | 1.9% | |
Suntech Power Holdings Co. Ltd. (ADS) | STP | 1.9% | |
SPX Corp. | SPW | 2.0% | |
Tandberg ASA | | 2.1% | |
Ansys Inc. | ANSS | 2.1% | |
Donaldson Co. Inc. | DCI | 2.2% | |
Pall Corp. | PLL | 2.2% | |
Autodesk Inc. | ADSK | 2.3% | |
MEMC Electronic Materials Inc. | WFR | 2.3% | |
Gamesa Corporacion Tecnologica S.A. | | 2.4% | |
Roper Industries Inc. | ROP | 2.5% | |
Novozymes A/S | | 2.6% | |
Kurita Water Industries Ltd. | | 2.7% | |
First Solar Inc. | FSLR | 2.7% | |
Vestas Wind Systems A/S | | 2.8% | |
Iberdrola Renovables S.A. | | 2.9% | |
Schneider Electric S.A. | | 2.9% | |
Corning Inc. | GLW | 3.0% | |
Siemens AG | | 3.2% | |
ABB Ltd. | | 3.2% | |
