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Software error could lead to DJSI changes

November 2010

Company scores that feed into the Dow Jones Sustainability Indexes (DJSI) could be adjusted next month after the discovery of a software glitch.

SAM, the Switzerland-based investment company that provides the corporate ratings on which the DJSI is based, has been reassessing all company marks after finding ‘an issue in the software used to evaluate the results’.

It says a re-evaluation was deemed essential ‘to ensure the scores and related products meet SAM’s high standards for quality and accuracy’.

Preliminary results indicate that ‘limited adjustments’ to some company scores may be necessary. It is not clear whether this will affect the ranking of any  business, their position as a sector leader, or even lead to deletions of companies from the DJSI altogether.

The scores being re-assessed are used to determine a company’s eligibility for inclusion and potential weight in certain indexes. Any adjustment will be implemented after close of trading on 17 December.




Dow Jones Sustainability Index | Global | Benchmarking

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