Correction and substantive update: October 3, 2026. The previous article incorrectly presented Credit Suisse Group stock as an ongoing standalone investment opportunity. This page now explains the historical acquisition.
Credit Suisse Group stock should not be evaluated as though the old standalone listing were still available. UBS completed its acquisition on June 12, 2023. An old price chart, ticker result or article about Credit Suisse is not evidence of a currently tradable share.
What happened in June 2023?
In its June 12, 2023 completion announcement, UBS said Credit Suisse Group AG had merged into UBS Group AG. It identified that day as the final trading day for Credit Suisse Group shares on the SIX Swiss Exchange and said the group’s American depositary shares would no longer trade on the New York Stock Exchange.
The announced exchange ratio was one UBS share for every 22.48 Credit Suisse shares held. That was a corporate-action exchange, not a promise that shareholders would recover what they originally paid.
What does the exchange ratio mean?
As a purely mathematical illustration, 2,248 Credit Suisse shares divided by 22.48 equals 100 UBS shares. This example is not an account reconciliation: depositary receipts, fractional interests, custody arrangements and the records supplied by a broker require separate attention. Do not infer your cost basis or tax result from this arithmetic.
Why old quotes can be misleading
A historical quote answers a historical question: what value was recorded for a particular instrument at a particular time? It does not establish whether an order can be placed today, which legal entity issued the instrument, or what happened to an investor’s position after a merger.
For any security associated with an acquired company, check the full issuer name, instrument type, exchange, identifier and quote timestamp. Common shares, depositary receipts, bonds and other obligations are not interchangeable. This article concerns Credit Suisse Group’s shares; it does not resolve the treatment of every instrument bearing the Credit Suisse name.
If an old holding still appears in your records
- Locate the account statement immediately before the corporate action and the subsequent transaction entries.
- Ask the broker to explain the quantity exchanged, any residual entries, and the supporting corporate-action notice.
- Keep the original purchase records and subsequent statements together. Ask a qualified tax professional about your own reporting obligations.
- Investigate inconsistencies through the broker’s verified contact details, not an unsolicited message offering to recover losses for an upfront payment.
Researching UBS as a present-day investment is a separate task requiring its current filings, valuation and risks. The historical exchange ratio alone says nothing about whether UBS is suitable or attractively priced now.
Continue with our investment-research hub and our editorial standards. This historical explainer is educational, not a recommendation to buy or sell a security.