S

SIX Group ✓

Operator of the SIX Swiss Exchange, Switzerland's financial market infrastructure.

IT Services & ConsultingZurich, Switzerland private Founded 2008
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At a Glance

Legal name
SIX Group AG
Jurisdiction
Switzerland (Canton of Zurich)
Ownership
private
Employees
1000+
Revenue (est.)
$1B+
Headquarters
Hardturmstrasse 201, 8005 Zurich, Canton of Zurich, Switzerland
Snapshot Last updated 24 April 2026

# SIX Group

Founded2008
Employees1000+
Revenue (est.)$1B+
OwnershipPrivate

SIX Group

SIX Group AG is the operator of the SIX Swiss Exchange, Switzerland's primary national stock exchange and one of the ten largest exchanges in the world by market capitalisation. Formed in 2008 by the merger of SWX Group, SIS Group, and Telekurs Group, SIX provides exchange services (SIX Swiss Exchange), post-trade services (SIX SIS central securities depository, SIX x-clear central counterparty), interbank payments (Swiss Interbank Clearing), and financial information services (reference data, indices, corporate actions).

Unlike virtually every other major exchange - NYSE (part of ICE), Nasdaq, LSE Group, Deutsche Boerse - SIX Group AG is itself a privately held Swiss Aktiengesellschaft, owned by roughly 120 Swiss and foreign banks. The cooperative-style ownership is a deliberate structural choice: Swiss banking users of the exchange own the exchange they trade on, which aligns incentives around fee levels, access terms, and settlement reliability. UBS, Raiffeisen, Zurcher Kantonalbank, and the main cantonal banks are the largest shareholders.

SIX is headquartered in Zurich (Hardturmstrasse) and employs approximately 3,900 people across Zurich, Madrid (after the 2020 acquisition of BME, the Spanish exchange), and additional European sites.

  1. 1

    Estonia e-Residency play

    SIX Group is the canonical example of a bank-owned utility Swiss AG. The structure matters because it shows what Swiss corporate law permits when the owners are themselves regulated entities that need a neutral, shared-cost venue for a regulated activity (in this case, securities trading, clearing, and settlement).

  2. 2

    Estonia e-Residency play

    The SIX AG charter binds shareholder rights to usage patterns: voting power is tied to trading volume and capital contribution rather than to pure equity share. Dividend policy is set at cost-plus-reasonable-margin rather than at market multiple. Governance is representative, with a board drawn from the largest shareholding banks plus independent directors. This cooperative-style AG is legally a standard Swiss Aktiengesellschaft but operationally closer to a utility or a mutual. Swiss corporate law accommodates the structure through customised statutes (filed with Zefix) that modify default AG governance within the bounds of mandatory corporate law.

  3. 3

    Tax strategy

    For founders considering Swiss corporate structures for industry consortiums, joint ventures, or cooperative-owned infrastructure (think industrial standards bodies, reinsurance pools, market-data consortia), SIX is the proof-of-concept. The Swiss AG can replace what in Germany would be a Genossenschaft (cooperative) or in the US would be a Delaware LLC with complex member agreements. The AG gives you cleaner governance, clearer statutory structure, and compatibility with Swiss tax law, at the cost of slightly more formal incorporation requirements (CHF 100,000 minimum capital, at least one Swiss-resident director).

  4. 4

    Acquisition story

    The 2020 BME acquisition - SIX bought Spain's Bolsas y Mercados Espanoles for EUR 2.8 billion - demonstrated a second structural capability: the Swiss AG holding can execute large cross-border acquisitions funded by shareholder banks without needing to access public equity markets. A listed exchange like Deutsche Boerse would have needed a rights issue or acquisition currency; SIX funded BME through shareholder capital calls and debt. That capability is specific to the bank-owned structure and not replicable by a listed exchange.

Key People

B

Bjørn Sibbern

CEO

From Wikidata

Corporate Timeline

  1. Aug 2008Incorporation

    SIX Group founded

    Incorporated in 2008

    Source →

Build Your Own

Replicate SIX Group's structure in 4 steps

The formation playbook, distilled from how this company was actually set up.

1

Parent-subsidiary layout

**SIX Group AG** (Zurich) - the private Swiss Aktiengesellschaft holding company, owned by approximately 120 Swiss and foreign banks.

2

**SIX Exchange Ltd** (Zurich) - operates the SIX Swiss

**SIX Exchange Ltd** (Zurich) - operates the SIX Swiss Exchange, FINMA-regulated stock exchange.

3

**SIX SIS Ltd** (Olten) - central securities depository,

**SIX SIS Ltd** (Olten) - central securities depository, Switzerland's CSD.

4

Estonia e-Residency play

**SIX x-clear Ltd** (Zurich) - central counterparty for equity and bond clearing.

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Recent News & Filings

Frequently Asked Questions

Is SIX Group publicly traded?

No. SIX Group AG is a privately held Swiss Aktiengesellschaft, owned by roughly 120 Swiss and foreign banks. The largest shareholders include UBS, Raiffeisen, Zurcher Kantonalbank, and the main cantonal banks.

What does SIX Group operate?

The SIX Swiss Exchange (trading), SIX SIS (central securities depository), SIX x-clear (central counterparty clearing), Swiss Interbank Clearing (payments), and financial information and index services. Also BME in Spain since 2020.

Why is SIX owned by its user banks?

Cooperative-style ownership aligns incentives around fee levels, access terms, and settlement reliability. The Swiss AG statutes bind shareholder rights to usage patterns rather than to pure equity share. It is a deliberate structural choice, not a legal requirement.

Can a Swiss AG issue usage-linked voting shares?

Yes. The Swiss Code of Obligations permits customised statutes within mandatory corporate-law bounds. SIX Group's statutes - public on Zefix - tie voting power to trading volume and capital contribution rather than pure equity ownership. This is unusual but legally clean.

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