--- title: "QE All Share Index: Methodology" description: "QE All Share Index is maintained by Qatar Stock Exchange and covers all companies listed on the Qatar Stock Exchange weighted by market capitalisation." canonical: https://www.getswoopr.com/stocks/indexes/qe-all-share/ source: "Swoopr Investment: https://www.getswoopr.com" --- # QE All Share Index: What It Measures and How It Is Built ## Direct Answer > The QE All Share Index is a rule-based measurement of all companies listed on the Qatar Stock Exchange weighted by market capitalisation, maintained by Qatar 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 QE All Share Index covers all companies listed on the Qatar Stock Exchange weighted by market capitalisation, within the Qatar market. Qatar 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 Free float market capitalisation weighted. Free float shares are set at the end of the review period for semi annual reviews and refreshed from end of January and end of April data for quarterly reviews. The seven sector indices are built from the same constituents by industry classification. The weighting method is the single biggest driver of how an index behaves. Two indexes covering the same market can diverge for years purely because they weight differently, which is why comparing index levels without knowing the method tells you very little. ## What qualifies for inclusion Main market equities with an individual shareholder limit of at least 1% and annual share velocity of at least 1%. There is no fixed constituent count: every qualifying security is included and allocated to a sector. Eligibility rules are the part of an index most readers never look at and the part that decides what it can possibly measure. A screen that excludes a whole sector, or admits only one listing venue, shapes the result far more than any day of trading does. ## How long a listing must exist first A stock must have been listed and tradable on the main market for six months or more at the end of the review period. A qualifying stock suspended for more than five trading days in the two weeks before a review is not considered at that review. A seasoning rule is why a large new listing does not appear in an index the week it starts trading. It is a deliberate lag, and it means an index can under-represent a fast-growing part of the market for months at a time. ## When the membership is revised Reconstituted semi annually on the first trading day of June and December, based on 12 months of data ending in April and October. A quarterly review of share numbers takes effect on the first trading day of March and September. Reconstitution is the one date an index changes shape by design rather than by price. Funds tracking it have to trade toward the new membership, which is why the schedule matters to anyone holding the tracker rather than only to the provider. ## The rule that surprises people The annual velocity floor is 1%, there is no fixed constituent count, and constituents are allocated to seven sector indices. ## References - [Qatar Stock Exchange: Qatar Stock Exchange QE All Share Index and Sectors Index Methodology and Maintenance version 2.4](https://www.qe.com.qa/documents/20181/445838/QE+All+Share+Index+Methodology.pdf/e09ce91c-068f-ad0e-51ea-76d6544a1818), as published 2025. Every rule described on this page is taken from this document. ## Current QE All Share Index constituents Qatar Stock Exchange publishes and licenses the QE All Share Index constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights. [Qatar Stock Exchange: official QE All Share Index page](https://www.qe.com.qa/indices) ## 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 QE All Share Index? Qatar Stock Exchange maintains the QE All Share Index and publishes the methodology document that defines its eligibility and weighting rules. ### What does the QE All Share Index measure? It measures all companies listed on the Qatar Stock Exchange weighted by market capitalisation. 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 QE All Share Index constituents? Qatar 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.