SoftBank Group’s stock jumped 14% on Monday after CEO Masayoshi Son announced a €75 billion ($87 billion) AI data center program in France, the company’s largest European infrastructure commitment to date.
The stock has now risen more than 70% in 2026, driven by investor confidence in SoftBank’s AI positioning through its stakes in Arm Holdings and OpenAI.
Son confirmed the investment at France’s Choose France summit alongside President Emmanuel Macron. The full commitment, Son noted, is closer to $750 billion when the broader system is factored in.
NEW: Japanese conglomerate SoftBank plans to spend $53 BILLION over five years building AI infrastructure in France. pic.twitter.com/CwTBOFd3ho
— Coin Bureau (@coinbureau) May 31, 2026
The initial phase involves $53 billion to build 3.1 GW of AI data center capacity in the Hauts-de-France region — specifically in Dunkirk, Bosquel, and Bouchain — by 2031.
SoftBank plans to work with subsidiary SB Energy and partner with French engineering firm Schneider Electric to develop a large-scale industrial production cluster in Dunkirk. The full program targets 5 GW of capacity across France.
Son pointed to France’s grid infrastructure, industrial land, and engineering talent as key reasons for the choice. France’s electricity network — largely nuclear-powered — offers lower carbon and more stable energy costs compared to other parts of Europe.
Roland Lescure, France’s minister of economy and digital sovereignty, called it a reflection of France’s “fast access to the most reliable electrical grid in Europe.” EDF chairman Bernard Fontana added that the project would repurpose former industrial sites while supporting France’s digital infrastructure goals.
This matters because energy costs have become one of the biggest barriers to AI data center development in Europe. Surging power prices — partly tied to the U.S.-Iran conflict — have made large-scale compute investment difficult across the continent.
SoftBank’s bet on France is an extension of its broader AI infrastructure push, which is already underway in the U.S.
The company has invested more than $30 billion in OpenAI, posting $45 billion in investment gains from that position in the year ended March. Its stake in Arm Holdings, whose chip designs power Nvidia-based AI servers, keeps it tightly connected to the infrastructure layer of the AI boom.
SoftBank said the France data centers will serve AI companies, cloud providers, enterprises, public institutions, and research organizations. The company also plans to work with local universities and engineering schools to support workforce development.
SoftBank overtook Toyota to become Japan’s most valuable company by market cap earlier this year, according to FactSet data.
The Choose France summit is designed to attract foreign investment, and this week’s announcements have drawn in commitments from roughly 100 companies, according to the French presidency.
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