---
title: "MSCI ACWI: Methodology"
description: "MSCI ACWI is maintained by MSCI and covers developed + emerging-market equities. How the index selects and weights its constituents, and what that means for what it measures."
canonical: https://www.getswoopr.com/stocks/indexes/msci-acwi/
source: "Swoopr Investment: https://www.getswoopr.com"
---

# MSCI ACWI: What It Measures and How It Is Built







## Direct Answer



> The MSCI ACWI is a rule-based measurement of developed + emerging-market equities, maintained by MSCI. Like every index it owns nothing: it is a number produced by applying a published weighting formula to a selected list of companies, revised on a schedule the provider sets.








## What this index covers



The MSCI ACWI covers developed + emerging-market equities, within the Global market. MSCI defines which securities are eligible, how they are selected from that pool, and how much each one contributes to the published number.



The index name does not state a fixed company count, so the number of constituents follows the eligibility rules rather than a target.








## How constituents are weighted



Swoopr has not verified the weighting method for this index against MSCI's current methodology document, so none is stated here rather than guessed. The provider link below is authoritative.








## Current MSCI ACWI constituents



MSCI publishes and licenses the MSCI ACWI constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.



[MSCI: official MSCI ACWI page](https://www.msci.com/indexes)








## Related reading



- [All stock market indexes](https://www.getswoopr.com/stocks/indexes/): how indexes are built, weighted and revised.
- [Global indexes](https://www.getswoopr.com/stocks/indexes/global/): others covering the same region.
- [Index concentration](https://www.getswoopr.com/technical-analysis/market-concentration/index-concentration/): measuring how much of an index sits in its largest holdings.
- [Index rebalancing and inclusion effects](https://www.getswoopr.com/stocks/corporate-actions-catalysts/index-rebalancing-and-inclusion-effects/): what happens to a stock when index membership changes.








## Frequently Asked Questions


### Who maintains the MSCI ACWI?



MSCI maintains the MSCI ACWI and publishes the methodology document that defines its eligibility and weighting rules.




### What does the MSCI ACWI measure?



It measures developed + emerging-market equities. The index is a calculated number applying a weighting formula to a selected list of companies, and it holds nothing itself.




### Where can I see the current MSCI ACWI constituents?



MSCI publishes the current constituent list. Swoopr does not republish it, because index providers license constituent data and Swoopr holds no such licence.











## About the author



The [Swoopr Editorial Team](https://www.getswoopr.com/authors/swoopr-editorial-team/) writes Swoopr Investment's educational library, covering market structure, analysis methods and the mechanics behind the numbers investors read every day.



Our [editorial policy](https://www.getswoopr.com/legal/editorial-policy/) and [corrections policy](https://www.getswoopr.com/legal/corrections-policy/) set out how this content is produced, reviewed and fixed when it is wrong.