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| Click here to view the data behind the chart. |
| Cleantech Index (CTIUS) |
| The Cleantech Index (CTIUS) is a modified equal-dollar weighted index of the leading cleantech companies worldwide 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. 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.
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