Cleantech Index (CTIUS) The Cleantech Index (CTIUS) is a modified equal-dollar weighted index of the leading cleantech companies from a broad range of industry sectors. "Cleantech" is defined as knowledge-based products and services that improve operational performance, productivity or efficiency; while reducing costs, resource and energy consumption, waste or pollution. Component stocks are traded on the NYSE, AMEX, and NASDAQ. The Cleantech index was established with a base value of 500.00, at market close, December 31, 1999. The Index is rebalanced every March, June, September and December. The Index was created by and is a trademark of Cleantech Indices LLC. http://www.amex.com/?href=http://www.amex.com/othProd/prodinf/OpPiIndMain.jsp?Product_Symbol=CTIUS
PZD a Powershares ETF tracks this index
components as of Monday:
Index Components as of: 12/31/07
Company Name Symbol % Weighting
Nalco Holding Co. NLC 3.08% ABB Ltd. (ADS) ABB 3.00% International Rectifier Corp IRF 2.99% Donaldson Co DCI 2.99% Roper Indus ROP 2.98% Veolia Environnement VE 2.98% Itron Inc ITRI 2.98% Siemens Ag Ads SI 2.97% Spx Corp SPW 2.96% Ansys Inc ANSS 2.96% Corning Inc GLW 2.94% Pall Corp PLL 2.91% Trimble Navigation Ltd TRMB 2.88% MEMC Electronic Materials Inc WFR 2.86% First Solar Inc. FSLR 2.85% Woodward Governor WGOV 2.84% Hexcel Corp HXL 2.84% Suntech Power Holdings Co Ltd STP 2.79% Sunpower Corp SPWR 2.76% Cree Inc CREE 2.75% Dionex Corp DNEX 2.53% Baldor Electric Co BEZ 2.51% Clarcor Inc CLC 2.46% Zoltek Cos Inc ZOLT 2.30% Esco Technologies ESE 2.22% Tetra Tech TTEK 2.19% Interface Inc. IFSIA 2.12% Martek Biosciences Corp. MATK 2.09% Ormat Technologies Inc ORA 2.03% Clean Harbors Inc. CLHB 2.00% EnerSys Inc ENS 1.75% Lindsay Manufacturing Co. LNN 1.70% Fuel Tech N.V. FTEK 1.62% N.A. LDK 1.58% Badger Meter BMI 1.52% Insituform Technol'a' INSU 1.49% Headwaters Inc. HW 1.48% Kadant Inc KAI 1.46% Energy Conversion Devices Inc ENER 1.15% Landec Corp LNDC 0.96% N.A. PPO 0.95% Echelon Corp ELON 0.87% N.A. POWR 0.62% Power-One Inc PWER 0.56% American Superconductor Corp AMSC 0.53% N.A. COMV 0.52% N.A. ENOC 0.48%
have not looked into it, but the 'modified equal-dollar weighted index ' seems to mean a significant rebalancing every quarter. don't know if that caps performance of the best performers and/or magnifies the share size of the underperformers..
not as liquid on first glance as PBW, but might be interesting as a potential source for individual up&coming tickers
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