SIX has completed its acquisition of Aquis, eight months after the deal was first announced.

David Stevens
The Swiss exchange agreed to acquire the entire issued and to be issued ordinary share capital of Aquis – valuing the entire issued and to be issued share capital of Aquis at approximately £207 million (based on treasury stock methodology) – back in November 2024.
Through the move, SIX and Aquis are have an aggregated 15% market share and access to 16 capital markets across Europe.
The two trading venues have confirmed that there will be opportunities for “seamless trading” across multiple venues.
“The acquisition of Aquis marks a significant milestone in the evolution of SIX as a pan-European leader,” said Bjørn Sibbern, chief executive of SIX.
“With Aquis, we gain not only access to new markets but also the technology and expertise needed to drive innovation at scale. We aim to offer our clients a unified experience with ‘one plug, multiple trading venues’ – a single connection providing access to Switzerland, Spain, and the UK – ensuring more liquidity, better market access, and innovative trading solutions.”
Aquis will continue to operate under its established brand following close, with its existing management team and business model preserved.
Additionally, as part of the acquisition, SIX is also set to deploy Aquis’ next-generation technology.
Read more: Haynes steps down as Aquis chief executive
David Stevens, chief executive of Aquis, said: “Aquis has achieved great momentum in our mission to challenge across European capital markets, and we will be able to go further, faster, and stronger as part of SIX. We will continue to innovate in trading, to deploy cutting-edge technology, and to provide a tailored listings environment for the UK’s high-growth smaller companies, while further benefiting from the strength of the European reach and infrastructure of SIX.
“Together, we are uniquely positioned to shape the future of the European exchange landscape.”