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Accessing SIC-to-GICS Industry Classification Crosswalks

Article Quant Q&A · Author: Psi
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Summary

The document addresses whether a public mapping exists between the Standard Industrial Classification system and the Global Industry Classification Standard. It reports that mappings between some other systems, including SIC and NAICS, are available, but says the GICS crosswalk is difficult to obtain because GICS is owned by S&P and the mapping is not public. Existing S&P customers may be able to request it directly.

A second response points to a commercial source selling the crosswalk. The discussion therefore provides practical data-acquisition guidance for researchers who need to reconcile company industry labels across classification schemes. It does not describe the structure or coverage of a mapping, compare alternative crosswalks, or evaluate how classification differences affect analysis. Access may depend on customer status or a paid purchase, so the document does not establish a freely available route for obtaining the SIC-to-GICS mapping.

Key ideas

  • The SIC-to-GICS crosswalk is described as nonpublic because GICS is owned by S&P.
  • Existing S&P customers may be able to request the mapping from the provider.
  • A commercial vendor is also cited as a source for purchasing the crosswalk.
  • Mappings between other classification systems, such as SIC and NAICS, may be easier to find.

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EquitiesFactor investing
Full text
# Mapping/crosswalk between SIC to GICS industry classification systems


# Mapping/crosswalk between SIC to GICS industry classification systems












Is anyone aware of a public SIC to GICS industry classification crosswalk?

I am aware of a mapping/crosswalk for:

- SIC to NAICS

- ISIC to NAICS

## Answer by Psi (score 3, accepted)

https://quant.stackexchange.com/a/49408

Since GICS is owned by S&P, the mapping is not public information and as such finding a public mapping is difficult. On the other hand, emailing S&P works for existing customers.

## Answer by Jami (score 1)

https://quant.stackexchange.com/a/68934

It costs money https://classification.codes/store/selection/?from_id=81&to_id=116 in euros, not in dollars

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.