Direct Answer
The CAC All Shares covers all equities listed on Euronext Paris that meet the size and liquidity thresholds in Euronext's published index methodology. Administered by Euronext, it is broader than the CAC 40 or SBF 120, providing a more complete picture of the French listed equity market.
What this index covers
The CAC All Shares covers the France equity market through the Euronext Paris. Euronext defines which securities are eligible, how they are selected from that pool and how much each contributes to the published number.
The eligible universe is: All equities listed on the regulated market of Euronext Paris that satisfy the minimum free-float, market-capitalisation and liquidity criteria specified in the Euronext published index methodology.
Understanding the eligible universe is the most important step in understanding what an index measures. An index that selects by listing venue will behave differently from one that selects by company domicile, and a sector index will have very different risk characteristics from a broad market measure even if they share some constituents.
How constituents are weighted
Free-float-adjusted market-capitalisation weighting, per the Euronext published index methodology.
Weighting is the mechanism that translates a list of companies into a single number. Free-float-adjusted market-capitalisation weighting is the most common method: larger companies contribute more to the index level than smaller ones, and the free-float adjustment excludes shares that are not available to public investors (such as government-held strategic stakes or closely-held founder shares). This makes the index level reflect the actual investable market rather than total market size.
Eligible universe and eligibility rules
Eligibility rules determine which companies can be included at a review and which must exit. The key dimensions to verify are: which exchange or market segment is in scope; whether domicile or listing venue determines eligibility; the minimum free-float threshold; the liquidity screen; and whether there are sector restrictions.
For the CAC All Shares, the relevant market is the Euronext Paris and the administrator is Euronext. Per the published Euronext methodology (verification date: August 31, 2026), the eligible universe is defined as: All equities listed on the regulated market of Euronext Paris that satisfy the minimum free-float, market-capitalisation and liquidity criteria specified in the Euronext published index methodology.
Reconstitution schedule
Quarterly review aligned with the Euronext CAC index family schedule. Eligibility is reassessed against the current published criteria at each review.
Reconstitution is the date on which the index changes shape by design rather than by price. Passive funds tracking the index must trade toward the new membership list, which creates predictable order flow around the review date. Active managers often position around reconstitution events to capture or avoid that flow.
How investors use this index
Broad French market reference; used by mandates seeking wider French equity exposure than the CAC 40 or SBF 120 provide; basis for total-return performance attribution across the French listed market.
For any index, three uses are distinct: as a performance benchmark (measuring how well a portfolio did relative to the market), as a product underlying (an ETF or structured product replicating the index), and as a research reference (tracking market-cap, sector weights or concentration over time). The same index can serve all three purposes, but the choice of which to use depends on the investment mandate and the specific question being answered.
Comparisons with related indexes
The CAC All Shares is most often compared with:
- CAC 40: 40 blue chips only; CAC All Shares includes the full qualified French universe.
- CAC All-Tradable: includes growth-market listings in addition to the regulated market; CAC All Shares is regulated-market only.
When switching from one benchmark to another, the practical question is what changes in coverage: does the alternative add smaller companies, exclude a sector, change the weighting method or extend to a different currency? Each of these changes alters what the index can tell you about market performance.
References
- Euronext: Index Products, as published per the provider's methodology page. All methodology claims on this page are derived from this source.
Current CAC All Shares constituents
Euronext publishes and licenses the CAC All Shares 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: how indexes are built, weighted and revised.
- European Stock Market Indexes: others covering the same region.
- Index concentration: measuring how much of an index sits in its largest holdings.
- Index rebalancing and inclusion effects: what happens to a stock when index membership changes.
Frequently Asked Questions
Who administers the CAC All Shares?
Euronext administers the CAC All Shares under its published CAC index family methodology.
How does CAC All Shares differ from the CAC 40?
The CAC 40 selects 40 large blue-chip companies. CAC All Shares includes all Euronext Paris regulated-market listings meeting eligibility criteria, covering a much broader universe.
Is CAC All Shares different from CAC All-Tradable?
Yes. CAC All-Tradable also includes listings from growth markets, whereas CAC All Shares covers only the regulated market.
How is the CAC All Shares weighted?
Free-float-adjusted market-capitalisation weighting, with each constituent's weight reflecting its free-float-adjusted market value as a share of the aggregate index.
Where can I find current CAC All Shares data?
Euronext publishes index data on its official index pages. Swoopr does not republish licensed constituent data.