MSCI Sustainability and Climate Historical Methodologies and Historical Disclosures

Our methodology documents describe our methodologies and include a description of the input data used in the models. They are not intended to provide an exhaustive description of all inputs, data sources, or derived calculations used to arrive at the final assessment.

Our methodology documents and related disclosure documents are updated from time to time. Historical versions of our methodology and disclosure documents can be accessed by clicking on the links below. Only historical methodology and disclosure documents in effect on or after January 1, 2026 are shown.

Some methodology and disclosure documents become obsolete because of changes to the level of transparency or other changes that do not reflect changes in the underlying methodologies, input data, or models. Where such changes occur, there is no change in version number.

Our methodology documents currently in effect are available on the MSCI Sustainability and Climate Methodologies page.