UBS London Move: How the UK Tried to Lure a $157bn Banking Giant to the City of London

Photo: Ank Kumar, CC BY-SA 4.0, via Wikimedia Commons (UBS headquarters, Zurich).

Picture the scene: the City of London gets to add the biggest bank in Switzerland to its skyline. That is the prize the UK government has been quietly chasing — and this week the Financial Times lifted the lid on how hard Britain tried to pull it off.

According to the FT, the Labour government courted UBS over moving its legal headquarters and its stock market listing to London in the event the Swiss giant decides to redomicile. The pitch came from Rachel Reeves during her time as Chancellor: she raised London as an alternative home directly with UBS chairman Colm Kelleher, with their most recent meeting taking place earlier this year.

Why would a bank that owes its name to the Union Bank of Switzerland even entertain the thought? Because Zurich and its biggest lender are in the middle of a bruising fight.

Why UBS is fighting Switzerland

After UBS rescued Credit Suisse in 2023, Swiss politicians decided the new mega-bank had to hold far more capital against a future crisis. Last month, Switzerland's upper house voted for tougher rules requiring UBS to back its foreign subsidiaries with 90% common equity tier 1 (CET1) capital — a demand UBS calls excessive.

UBS reckons the proposals would force it to hold around $16 billion in extra capital, according to a Wall Street Journal report carried by Reuters this week. That is dead money for shareholders: US investor Artisan estimates the idle capital would cost about $2.4 billion a year in forgone returns — roughly $36 billion in market value, nearly a quarter of the bank's entire worth.

No wonder the bank is rattling the sabre. Chairman Kelleher has warned that excessively harsh regulation could force UBS to reconsider its future in Switzerland, and Reuters reported this week that a group inside the bank is working on scenarios — from a headquarters shift to a US deal — if the rules prove intolerable.

What a London move would mean for Britain

Let's put some numbers on the prize. UBS is valued at around CHF129 billion — roughly £118 billion, or $157 billion at current rates. If it listed in London, it would instantly become the fourth-biggest company on the FTSE 100, behind only HSBC, Shell and AstraZeneca.

UBS already employs about 8,000 people in the UK across investment banking, wealth management and asset management, so London is not some cold call. A headquarters move would hand the City the single biggest post-Brexit prestige win since Britain left the EU.

It also fits a pattern: since taking office, the government has been aggressively courting international companies, and landing UBS would be the crown jewel of that whole strategy.

Don't start printing the bunting just yet

Here is the awkward part for London's dreamers: UBS keeps saying it isn't going anywhere. The bank has repeatedly stated that it sees great value in its Swiss base and intends to operate from Switzerland. Its response to this week's revelations was the usual stone wall — "we don't comment on speculation or views expressed on such matters," it told Reuters.

And the Swiss aren't exactly pushing the bank out the door. Finance Minister Karin Keller-Sutter has said she believes it is unlikely UBS would leave its homeland, arguing that a move would be costly and legally complicated. She has a point. Re-domiciling a bank of this size means untangling decades of legal structure and regulatory approvals. Mega-banks almost never move headquarters, precisely because the friction is so enormous.

What is really going on, I'd argue, is leverage. UBS has a duty to its shareholders to consider every option, and it knows it. Being visibly courted by London strengthens the bank's hand in Bern far more than any press release ever could. The message to Swiss lawmakers is unmistakable: push too hard, and the goose that lays the golden eggs starts looking at other nests.

Video: the Wall Street Journal scoop

Video: India Today Global via YouTube.

What happens next

The capital rules bill now moves to Switzerland's lower house, with a final decision likely in 2027 at the earliest. Until then, expect more of this: UBS talking tough, Switzerland calling the bluff, and London hovering in the background with an open door and a very attractive pitch.

Sources

Reporting for this article draws on the Financial Times' original scoop (as carried by SWI swissinfo.ch, 16 October 2026), Reuters' reporting on UBS's contingency planning and the Artisan investor letter (15 October 2026), Le Temps (16–17 October 2026), and London Star's coverage. According to the FT, Reeves discussed moving UBS's legal headquarters and listing to the UK with chairman Colm Kelleher; according to Reuters, UBS is weighing scenarios including a headquarters shift while insisting no active talks are under way.