UBS faces heightened regulatory pressure from Swiss lawmakers seeking tougher too-big-to-fail capital rules after the 2023 Credit Suisse rescue, with proposals requiring an estimated $16-20 billion in additional Common Equity Tier 1 capital through higher backing for foreign units. This has prompted contingency planning inside the bank, including potential headquarters relocation via U.S. acquisition, European merger, or redomiciling, as reported in mid-October 2026. Major shareholders such as Artisan Partners have publicly urged departure, citing punitive requirements that could erode up to $36 billion in market value, while UBS management maintains its preference to remain Swiss. The lower house of parliament is next to consider the measures, with any final rules unlikely before 2027, creating near-term uncertainty around an announcement.