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Reconstitution Central
Your guide to Russell's annual index reconstitution

In order to maintain true representation of global equity markets and avoid capitalization and style slippage, Russell annually rebalances the entire Russell family of indexes.
Annual reconstitution ensures that the indexes reflect the changes in the market over time and accurately represent the true opportunity set of institutional managers. Russell's U.S. and global index families reconstitute simultaneously.
2008 reconstitution
The 2008 reconstitution of the Russell Indexes took place after the market closed on June 27, 2008.
Final Russell U.S. Indexes membership
Final Russell Global Index membership
Frequently asked questions
Press release: Russell Global Index adds 1,242 stocks (July 3)
New for 2008
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- In the calculation of styles in 2008, Russell will not adjust for the impact of Financial Accounting Standards Board (FASB) 158 for U.S. companies as in 2007.
- Government holders have been divided into three categories; Direct Government Holders, Indirect Government Holders, Government Pensions. Each category is defined differently in terms of determining available shares/float.
- Anguilla, Antigua and Barbuda, Barbados, the Faroe Islands and the Turks and Caicos Islands have been added to the BDI list of countries.
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For further details and a complete list of all changes for 2008 please see the following:
Russell U.S. Index Construction & Methodology document (PDF)
Russell Global Index Construction & Methodology document (PDF)
Contact your client service associate
Featured articles
Capitalization banding: Russell Indexes
Market index change: Why it creates better measures
Russell research: Price pressure at Russell index reconstitution (PDF)
The importance of reconstitution
Complete reconstitution is important for an index designed to represent market segments because market characteristics change over time. For example, a small-cap security can grow into the mid-cap range over time. Lack of complete reconstitution results in sector, capitalization, and style biases, all of which challenge the ability of an index to represent the market.
Russell research has shown that increasing the frequency of Russell index reconstitution involves substantial increases in turnover costs to investors without offsetting benefits. Research concludes that the combination of annual reconstitution and the quarterly addition of eligible initial public offerings (IPOs) results in the most effective balance between index turnover and market representation.


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© Russell Investments 1995-2008. All rights reserved.
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Russell Investment Group is a Washington, USA corporation, which operates through subsidiaries worldwide, including Russell Investments, and is a subsidiary of The Northwestern Mutual Life Insurance Company.
Indexes are unmanaged and cannot by invested in directly. Returns represent past performance, are not a guarantee of future performance, and are not indicative of any specific investment.
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