my 2 cents worth:

if you would look back on the financial crisis that UBS experienced, most International Big Banks have also been hit by that. and from what i've read before, it also includes large banks within switzerland, i.e. credit Suisse.

the question: how safe is UBS? safe as long as those within UBS moves on the right way. as long as they manage it correctly. will they fail? i don't see it in the next years or so, surely, they have huge reserves, and their profits before this crisis can overcome it. all business can fail, but for a bank as large as ubs, i think, they can hold out a lot longer than bear sterns