---
title: "IDX Composite: Methodology"
description: "IDX Composite is maintained by Indonesia Stock Exchange and covers broad indonesian 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/idx-composite/
source: "Swoopr Investment: https://www.getswoopr.com"
---

# IDX Composite: What It Measures and How It Is Built







## Direct Answer



> The IDX Composite is a rule-based measurement of broad indonesian equity benchmark, maintained by Indonesia Stock Exchange. 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 IDX Composite covers broad indonesian equity benchmark, within the Indonesia market. Indonesia Stock Exchange 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 Indonesia Stock Exchange's current methodology document, so none is stated here rather than guessed. The provider link below is authoritative.








## Current IDX Composite constituents



Indonesia Stock Exchange publishes and licenses the IDX Composite constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.


        






## Related reading



- [All stock market indexes](https://www.getswoopr.com/stocks/indexes/): how indexes are built, weighted and revised.
- [Emerging Markets indexes](https://www.getswoopr.com/stocks/indexes/emerging-markets/): 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 IDX Composite?



Indonesia Stock Exchange maintains the IDX Composite and publishes the methodology document that defines its eligibility and weighting rules.




### What does the IDX Composite measure?



It measures broad indonesian 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 IDX Composite constituents?



Indonesia Stock Exchange 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.