Published by Global Banking & Finance Review®
Posted on December 8, 2025
1 min readLast updated: January 20, 2026
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Andre Helfenstein, ex-Credit Suisse, will chair SIX exchange from January, succeeding Thomas Wellauer amid financial challenges.
ZURICH, Dec 5 (Reuters) - Andre Helfenstein, a former senior executive at Credit Suisse, will become chairman of the board at Swiss stock exchange operator SIX on January 1, succeeding Thomas Wellauer, the company said on Friday.
Helfenstein, who joined SIX's board in 2020, had led Credit Suisse's Switzerland operations until 2024.
Wellauer will stay on the SIX board until its annual general meeting in May to ensure a smooth transition, SIX said.
A former partner at Boston Consulting Group, Helfenstein faces major challenges at SIX.
The firm expects to post a loss of around 300 million Swiss francs ($374.20 million) in 2025, largely due to a significant write-down on its stake in French payments firm Worldline.
($1 = 0.8017 Swiss francs)
(Reporting by Oliver Hirt)
A chairman is the head of a board of directors in a company, responsible for leading meetings and ensuring the board's effectiveness in overseeing the organization's management.
A stock exchange is a marketplace where securities, such as stocks and bonds, are bought and sold. It facilitates the trading of financial instruments and provides a platform for companies to raise capital.
A write-down is an accounting term that refers to reducing the book value of an asset when its market value has fallen below the carrying value, often due to impairment or loss.
A loss occurs when expenses exceed revenues, resulting in a negative financial outcome for a business or individual. It can impact profitability and cash flow.
A transition in a corporate context refers to the process of changing from one state to another, such as leadership changes or organizational restructuring, aimed at improving efficiency or adapting to new challenges.
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