---
title: "EURO STOXX 50: Methodology"
description: "EURO STOXX 50 is maintained by STOXX and covers 50 blue-chip euro-area companies. How the index selects and weights its constituents, and what that means for what it measures."
canonical: https://www.getswoopr.com/stocks/indexes/euro-stoxx-50/
source: "Swoopr Investment: https://www.getswoopr.com"
---

# EURO STOXX 50: What It Measures and How It Is Built







## Direct Answer



> The EURO STOXX 50 is a rule-based measurement of 50 blue-chip euro-area companies, maintained by STOXX. 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 EURO STOXX 50 covers 50 blue-chip euro-area companies, within the Eurozone market. STOXX defines which securities are eligible, how they are selected from that pool, and how much each one contributes to the published number.



The name states a target of 50 companies. A target is not a guarantee of the exact count on any given day: corporate actions, dual share classes and pending additions all move the real number around it.








## How constituents are weighted



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








## Current EURO STOXX 50 constituents



STOXX publishes and licenses the EURO STOXX 50 constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.



[STOXX: official EURO STOXX 50 page](https://stoxx.com/)








## Related reading



- [All stock market indexes](https://www.getswoopr.com/stocks/indexes/): how indexes are built, weighted and revised.
- [Europe indexes](https://www.getswoopr.com/stocks/indexes/europe/): 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 EURO STOXX 50?



STOXX maintains the EURO STOXX 50 and publishes the methodology document that defines its eligibility and weighting rules.




### What does the EURO STOXX 50 measure?



It measures 50 blue-chip euro-area companies. 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 EURO STOXX 50 constituents?



STOXX 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.