London Daily

Focus on the big picture.
Wednesday, Sep 23, 2026

After handing the strategic company to China, Boris Johnson finally joins lobbying for UK chip designer Arm to list in London

After handing the strategic company to China, Boris Johnson finally joins lobbying for UK chip designer Arm to list in London

Government fears damage of losing out to New York in battle to attract tech floatations, after losing it previously to China.
Boris Johnson has joined the lobbying effort to convince the British-based chip designer Arm to float in London, as the government fears the damage of losing out to New York in the battle to attract high-profile tech companies looking to list.

After the collapse of the $66bn sale of the Cambridge-based business to US-based Nvidia earlier this year, Masayoshi Son, the chief executive of Arm’s Japanese parent company Softbank, immediately snubbed the UK for a flotation.

“We think that the Nasdaq stock exchange in the US, which is at the centre of global hi-tech, would be most suitable,” he said in February.

Johnson has joined the lobbying efforts already under way by London Stock Exchange executives and a number of government departments and senior officials, writing a letter to Softbank executives, according to the Financial Times.

The effort includes the Department for Digital, Culture, Media and Sport (DCMS), the Treasury, the business department as well as Downing Street. The digital minister Chris Philp and Gerry Grimstone, the former Barclays chair who now heads the UK’s Office for Investment, are leading the lobbying efforts.

While the chances of changing SoftBank’s mind are considered slim, Arm has previously had a dual listing on both sides of the Atlantic, before it was acquired by the Japanese company for £24.6bn in 2016.

Arm had been a member of the FTSE 100 for 18 years and winning it back would be a huge boost for the capital’s longer-term ambitions to have more tech flotations, while losing it would be a big blow to that goal.

Analysts are estimating that Arm would float with a market value of $30bn to $40bn, which would make it the largest tech company on the London Stock Exchange, more than twice the size of the current leader, Ocado. At that scale, Arm would also rank between the 19th and 24th largest listed company in the UK.

A government spokesperson said: “We want to make the UK the most attractive place for innovative businesses to grow and raise capital.” SoftBank, Arm and the LSE declined to comment.

In December, Paul Marshall, the chairman of the investment manager Marshall Wallace, said the UK and European stock markets were becoming the “Jurassic Park” of global stock exchanges.

He wrote in the Financial Times: “The UK stock market is becoming a global backwater as US and Chinese markets forge ahead. It has largely failed to take part in the global rally that began in 2015. We are reaching the point where companies may decide we should simply all agree on a single global exchange, trading 24 hours and located in New York.”

Last year new rules were introduced to try to make London more attractive to tech companies, including allowing dual share class structures, which give founders more control after they float a business, and reducing the amount of shares required to be offered to the public to 10%.
Newsletter

Related Articles

0:00
0:00
Close
Piddington Residents Back Symbolic Independence Vote Over Asylum Accommodation Plan
Reform UK Names Helen Jenner as New Leader in Wales
England Expands Devolution of Transport, Skills and Economic Development Powers
Liberal Democrats Call for Temporary Fuel Duty Cut to Ease Cost-of-Living Pressure
UK Farmers Warn Drought Has Caused Crop Failures and Reduced Harvests
UK Fixed Mortgage Rates Approach 6% as Lenders Raise Borrowing Costs
YouGov Poll Puts Labour at 23% With Conservatives and Reform UK on 21%
Badenoch Presses Burnham to Increase Defence Spending and Cut Welfare Costs
UK Military Figures Warn of Growing Threats to Undersea Infrastructure and National Readiness
BP Moves Ahead With Sale of UK North Sea Oil and Gas Business
UK and ASEAN Endorse New Framework for Trade and Economic Cooperation
UK Consumer Confidence Falls to Three-Year Low as Borrowing Costs and Job Concerns Rise
UK Inflation Rises to 3.1% as Motor Fuel Costs Push Prices Higher
Bank of England Sets Multi-Year Plan to Wind Down Quantitative Easing Holdings
UK Borrowing Rises to £18.3 Billion in August Ahead of October Budget
Michelin Guide Faces Industry Questions Over Restaurant Inspection Coverage
English Woodlands Face Renewed Weather Stress From Dry Conditions and Strong Winds
Research Finds Extensive Alcohol, Gambling and Unhealthy Food Branding During 2026 World Cup
Five Charged After Newborn Baby Dies From Stab Wounds in Sheffield
BT Could Reap £2 Billion From Recycling Copper as Full-Fibre Network Expands
FCA Urges Young Adults to Trace £1.5 Billion in Unclaimed Child Trust Funds
Reform UK Names Helen Jenner as New Leader in Wales After Dan Thomas Steps Down
Resolution Foundation Calls for Broad-Based Tax Rises to Fund Higher UK Defence Spending
Ed Davey Calls for Global Treaty to Halt Development of Super-Intelligent AI
Scotland Consults on Legal Price Caps for Essential Foods
NHS Productivity Reforms Could Prevent More Than 20,000 Early Deaths a Year, Report Says
United Kingdom and ASEAN Deepen Trade and Investment Cooperation
United Kingdom Deploys RAF Refuelling Support to Saudi Arabia After Houthi Attacks
UK Fiscal Headroom Shrinks as Higher Borrowing Costs Complicate Autumn Budget
UK Public Borrowing Jumps to £18.3 Billion in August, Raising Pressure Before Budget
Andy Burnham Reaffirms UK Net-Zero Target With £30 Million Community Energy Fund
Scottish Labour Leader Backs Rosebank and Jackdaw North Sea Projects
UK Consumer Confidence Falls to Three-Year Low
UK Diesel Prices Approach £2 a Litre as Global Supply Shortages Intensify
Chiltern Railways Returns to Public Ownership as UK Rail Nationalisation Advances
British Museum Faces Questions Over Peter Thiel’s Private Bayeux Tapestry Viewing
Earl Spencer Memoir Excerpts Renew Public Debate Over Diana’s Death
Liberal Democrats Gather in Brighton for Autumn Conference
Mothercare Shares Plunge as Middle East Store Closures Threaten Long-Term Solvency
Kent Police Treat Folkestone Hotel Fire as Suspicious
Caribbean Governments Advance Reparations Campaign Seeking Engagement With Britain
Scottish Labour Leader Backs Rosebank and Jackdaw North Sea Projects
FCA Urges Young Adults to Trace £1.5 Billion in Unclaimed Child Trust Funds
UK Competition Regulator Opens Inquiry Into McCormick-Unilever Foods Deal
Public Inquiry Into Tees, Esk and Wear Valleys Mental Health Failings Set to Begin
Nigel Farage Looks to US Immigration Enforcement Model for UK Border Policy
Chiltern Railways Moves Into Public Ownership
Security Review Raises Concerns Over Sensitive UK Police Data Stored on Microsoft Cloud
Burnham Government Warns of Difficult Autumn Budget as Fiscal Headroom Narrows
Bank of England Holds Rates at 3.75% as Inflation Rises to 3.1%
×