---
title: "SBF 120: Methodology"
description: "SBF 120 is maintained by Euronext and covers broader french equity benchmark. How the index selects and weights its constituents, and what that means for what it measures."
canonical: https://www.getswoopr.com/stocks/indexes/sbf-120/
source: "Swoopr Investment: https://www.getswoopr.com"
---

# SBF 120: What It Measures and How It Is Built







## Direct Answer



> The SBF 120 is a rule-based measurement of broader french equity benchmark, maintained by Euronext. 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 SBF 120 covers broader french equity benchmark, within the France market. Euronext 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 120 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 Euronext's current methodology document, so none is stated here rather than guessed. The provider link below is authoritative.








## Current SBF 120 constituents



Euronext publishes and licenses the SBF 120 constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.



[Euronext: official SBF 120 page](https://live.euronext.com/en/products/indices)








## 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 SBF 120?



Euronext maintains the SBF 120 and publishes the methodology document that defines its eligibility and weighting rules.




### What does the SBF 120 measure?



It measures broader french equity benchmark. 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 SBF 120 constituents?



Euronext 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.