Credit Suisse: A 167-Year-Old Bank Gone in a Weekend
One of the world's most storied banks, founded in 1856, was forced into an emergency sale to UBS over a single weekend after a confidence crisis — and Swiss regulators then wrote roughly $17 billion of a specific bond class to zero while shareholders still got paid, inverting the order investors normally expect.

- Founded
- 1856
- AT1 bonds written to zero
- ~$17 billion (CHF 16.5B)
- Deal arranged
- Over a single weekend
What happened
Credit Suisse had spent years working through scandals, losses and leadership turnover before 2023, leaving confidence in the bank already fragile. When Silicon Valley Bank collapsed in the US in early March, it renewed global scrutiny of bank balance sheets, and a large shareholder's comment that it would provide no further capital tipped Credit Suisse into a full deposit and confidence crisis within days.
Swiss authorities, unwilling to let a bank of Credit Suisse's size and global interconnectedness fail outright, arranged an emergency takeover by UBS over the weekend of March 18–19, 2023, using emergency powers to push the deal through without a normal shareholder vote.
As part of the deal, Swiss regulator FINMA ordered the complete write-down of roughly CHF 16.5 billion (about $17 billion) of Credit Suisse's Additional Tier 1 bonds — a class of debt specifically designed to absorb losses in a crisis — to zero, while shareholders still received UBS stock worth billions. That order inverted the order investors normally expect, where bondholders are protected ahead of shareholders.
Why it still matters
The bond write-down is the sharpest lesson here: the formal seniority of an asset class on paper is only as reliable as the legal and regulatory system enforcing it, and a government acting under emergency powers can rewrite that order when it decides financial stability requires it.
More broadly, Credit Suisse shows that a large, systemically important institution can survive years of individually manageable scandals and still be brought down in days once confidence itself becomes the failing asset — reputation and trust are not soft factors, they are load-bearing parts of a bank's actual solvency.