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MSCI World Index

MSCI World Index Brochure

The MSCI World Index, which is part of The Modern Index Strategy, is a broad global equity index that represents large and mid-cap equity performance across 23 developed markets countries. It covers approximately 85% of the free float-adjusted market capitalization in each country and MSCI World Index does not offer exposure to emerging markets.


Download the MSCI World Index Brochure



MSCI world Index market allocation



MSCI World: How do you see the world?

MSCI World Index 23 Developed Markets

Evolves to measure and capture equity markets as they exist today. Our indexes are built using an innovative maintenance methodology that provides superior balance between the need for a stable index that is flexible enough to adjust quickly to a constantly changing opportunity set. We provide timely and consistent treatment of corporate events and synchronized rebalancings, globally.


Covers the full opportunity set and all its segments, including GICS® sectors. All of MSCI’s indexes are created using the Global Industry Classification Standard (GICS®), an industry classification system developed by MSCI and S&P Global, which provides a common framework to classify stocks. They offer exhaustive coverage of the investable opportunity set with non-overlapping size and style segmentation.


Consistent methodology for every market. Where other providers use either a long- or short-term liquidity measure to assess the eligibility of stocks for their indexes, MSCI uses both, recognizing the differences in liquidity between developed and emerging markets and enhancing the investability and replicability of our indexes.
MSCI puts strong emphasis on investability and replicability of its indexes through
the use of size and liquidity screens.


The MSCI World Index represents approximately 88% of the MSCI ACWI Index
MSCI World Index Pie Chart



  • MSCI World Index: Covers more than 1,600 securities across large and mid-cap size segments and across style and sector segments in 23 developed markets.
    Performance | Factsheet
  • MSCI World Investable Market Index (IMI): Covers more than 4,500 securities across large, mid and small-cap size segments and across style and sector segments in 23 developed markets.
    Performance | Factsheet
  • MSCI World All Cap Index: Covers a comprehensive set of approximately 6,100 securities and includes large, mid, small and micro-cap size segments for all 23 developed markets countries.
    Performance | Factsheet

The MSCI World Index is a broad global developed markets equity benchmark designed to support:

  • Asset allocation: Consistent, broad representation of the performance of developed equity markets worldwide, without home bias.
  • Performance measurement and attribution: Respected industry benchmark for global equity mandates without emerging markets equity exposure, with regional, sector and other subsets available for more targeted investment mandates.
  • Research: A trusted source for global developed markets indexes and underlying security-level data for sell-side research.
  • Investment product development: can be licensed for use as the basis for structured products and other index-linked investment vehicles, such as ETFs and ETNs.

MSCI World Index Building Block Approach


our Building Block Approach

MSCI World Indexes offer a building block approach with a rules-based, consistent and transparent methodology.

Using MSCI World as a framework to build global developed market equity portfolios can help to avoid unintended bets and risks.

Robust foundation allows investors to measure exposure to all sources of equity returns using a single global framework.

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Want to learn more about MSCI World indexes?

The "New Classic" Equity Allocation?

Our research suggests that global equity mandates, together with dedicated emerging market mandates and small-cap mandates, may be emerging as the "new classic" structure for implementing equity allocation.

GDP Weighting in Asset Allocation

In this bulletin, we examine the effects of an alternative global index weighting scheme that weights countries in a regional index by their GDP.

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