Classification of Industries

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Classification of companies into industries must ideally be such that it helps analysts compare companies across the world. This helps in comparing industry trends and relative valuations. Industry classifications can be commercial or government classifications. Commercial industry classifications can be further sub-divided into the following:

  • Global Industry Classification Standard (GICS): This system classifies companies globally according to their principal business activity. The companies form part of a sub-industry, which belongs to an industry, which comes under an industry group. Each industry group comes under a sector. The composition of the industries under this classification has changed periodically to reflect the changes in the global economy. S&P and MSCI Barra developed this classification.

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