SoftBank

SoftBank Group Corp is a Japanese multinational conglomerate founded in 1981 by Masayoshi Son, headquartered in Tokyo. It pivoted from software distribution into telecoms and technology investment, becoming best known for its Vision Fund: a ~$100 billion vehicle backed partly by Saudi Arabia's Public Investment Fund, with stakes in companies including OpenAI and Arm Holdings.

SoftBank is the primary financial anchor of the Stargate joint venture, the $500 billion US AI infrastructure programme announced in January 2025. Of that headline figure, only the first $100 billion was described as committed at announcement; SemiAnalysis publicly questioned whether SoftBank can finance the remaining $400 billion. Abilene, Texas is the only site partially operational at roughly 1.2 GW against a nominal 10 GW US target. Latitude Media estimated 30-50% of large data centres scheduled for 2026 completion will slip. Separately, OpenAI's UK Stargate component at Cobalt Park paused on 23 April 2026, with SoftBank-adjacent project elements continuing.

SoftBank's core tension is structural: a holding company whose value is mark-to-market and hostage to global equity sentiment. The Vision Fund amplified returns in benign conditions but creates outsized downside in macro shocks, its shares fell 11% in a single session during the March 2026 Iran oil shock. The Stargate commitment represents a bet that AI infrastructure demand justifies Son's most ambitious capital deployment since the WeWork era.

SoftBank's Stargate underwriting is under material pressure following reporting that OpenAI has compressed its compute ambition from a $1.4 trillion nameplate to roughly $600 billion through 2030. OpenAI declined its option on the Crusoe Abilene flagship lease, suspended the Cobalt Park North Tyneside site, and reconfigured Narvik, Norway plans; several senior Stargate executives departed in mid-April 2026. Tom's Hardware reported OpenAI now treats Stargate as an umbrella term and prefers leased compute over owned build.

On 30 May 2026 SoftBank committed up to EUR 75 billion to build 5 GW of data-centre capacity in France, announced at the Choose France summit. Phase 1 targets EUR 45 billion and 3.1 GW by 2031 across three Hauts-de-France sites: Dunkirk at Loon-Plage, Bosquel, and Bouchain. EDF provides nuclear baseload at Bouchain via a repurposed former power-station site; Schneider Electric is building an on-site industrial manufacturing cluster at Dunkirk, bypassing connection-queue constraints.

SoftBank's exposure remains structural. As the primary guarantor of the $500bn US Stargate programme, any reduction in OpenAI's committed capex directly affects the revenue underpinning its financing case for tranches beyond the initial $100bn. The IRGC explicitly named Stargate UAE in a targeting video on 1 April 2026, and subsequent Iranian strikes hit Oracle infrastructure in Bahrain and Dubai. Physical Stargate assets are now in an active war zone, adding a geopolitical risk layer to a programme already under financial scrutiny. The France commitment is SoftBank's most significant outside the US and signals a parallel European bet independent of OpenAI's revised capex plans.