Aside from where the bank is chartered...

I would suggest a read of https://en.wikipedia.org/wiki/Credit_Suisse#Controversies and consider that each time that happened they lost money and trust.

At this point, they have neither.

I think so. I believe that this is the reason EU banks have been ok so far, as they do need to hedge interest rate risk.

EU banks are ok? Didn't Credite Suisse just go under and had to be forcedly saved by its main competitor?

Credit Suisse is Swiss. Switzerland is not a member of EU and they don't use euro.

I appreciate the correction but that probably doesn't change the point being made, as the economy of Switzerland is obviously closely tied to that of the EU (when I read EU I normally think Europe, not just European Union, which is my mistake, but in conversations like this I think "Europe" would be the better term after all).

Credite Suisse's problems predate the interest rate issues by years.

I have no idea about the substantive discussion, but just to point out: Switzerland is not in the EU.

Yeah, I almost added CS to the original post, but their problems were relatively unique to them, rather than being an extreme case of a common problem, like regional banks in the US (who didn't need to hedge interest rate risk).