The DJSI is based on an analysis of corporate economic, environmental and social performance, assessing issues such as corporate governance, risk management, branding, climate change mitigation, supply chain standards and labor practices. The trend is to reject companies that do not operate in a sustainable and ethical manner. It includes general as well as industry-specific sustainability criteria for each of the 58 sectors defined according to the Industry Classification Benchmark (ICB).
The DJSI family contains one main global index, the DJSI World, and various indexes based on geographic regions such as: Europe, Nordic, North America and Asia Pacific. The DJSI also contains industry-specific indexes called "blue chip indexes". In addition, the DJSI methodology facilitates the design, development and delivery of customized sustainability indexes; e.g., indexes covering different regions, indexes covering different segments of the leading sustainability companies, indexes covering additional exclusion criteria and indexes denominated in different currencies.
To be incorporated in the DJSI, companies are assessed and selected based on their long-term economic, social and environmental asset management plans. Selection criteria evolve each year and companies must continue to make improvements to their long-term sustainability plans in order to remain on the Index. Indexes are updated yearly and companies are monitored throughout the year.
Indexes are denominated in both US dollars and Euros and are calculated using the Laspeyres formula. All indexes that are not subsets include companies that generate revenue from alcohol, tobacco, gambling, armaments and firearms, and adult entertainment. Index components are based on free-float market capitalization and most main indexes are reviewed quarterly, excluding the world index. Customized indexes are continuously being developed and delivered to encompass different regions or individualized sections of companies to add additional exclusions when needed and to change the currencies they are denoted in.