SoftBank just agreed to pay $4 billion for DigitalBridge, the alternative asset manager that controls $108 billion in data centers, cell towers, and fiber networks across three continents. It's the latest—and clearest—signal that Masayoshi Son is betting SoftBank's future on owning the physical infrastructure that powers AI, not just the software running on top of it. The timing is no coincidence: SoftBank is racing to secure $22.5 billion by year-end 2025 to meet its Stargate funding commitment to OpenAI.
This isn't about passive investment. Son committed $100 billion to the Stargate Project with OpenAI in January 2025 and pledged another $100 billion for U.S. AI infrastructure last December. Now he's acquiring the platform that operates some of the world's largest data center campuses—including Vantage's $25 billion Texas mega-site—as Stargate expands to 7 gigawatts across five new sites. The acquisition gives SoftBank direct ownership of infrastructure feeding its AI ambitions while providing the liquidity to meet OpenAI's deadlines. The stakes: control over the scarcest resource in the AI economy.
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Masayoshi Son
Chairman & CEO, SoftBank Group (Leading SoftBank's pivot to AI infrastructure ownership while racing to meet $22.5B year-end Stargate funding deadline)
Marc C. Ganzi
CEO & President, DigitalBridge Group (Successfully sold DigitalBridge to SoftBank; will continue leading company as separately managed platform post-acquisition)
Organizations Involved
SO
SoftBank Group Corp.
Japanese Multinational Conglomerate
Status: Acquiring DigitalBridge to expand AI infrastructure control
Japanese tech conglomerate pivoting from venture capital to direct ownership of AI infrastructure.
DI
DigitalBridge Group, Inc.
Alternative Asset Manager
Status: Being acquired by SoftBank for $4 billion; will operate as separately managed platform under Marc Ganzi post-acquisition
Leading global alternative asset manager managing $108 billion in digital infrastructure across data centers, towers, and fiber.
VA
Vantage Data Centers
Hyperscale Data Center Operator
Status: DigitalBridge portfolio company building multi-gigawatt AI infrastructure
Leading wholesale data center provider with over 3 GW of capacity serving hyperscalers and cloud giants.
ST
Stargate LLC
Public-Private Joint Venture
Status: Rapidly expanding to 7 GW capacity across multiple sites; on track for 10 GW and $500B total by year-end 2025
Joint venture between SoftBank, OpenAI, Oracle, and MGX to build next-generation AI infrastructure.
Timeline
SoftBank Agrees to Acquire DigitalBridge for $4 Billion
Acquisition
SoftBank announces definitive agreement to buy DigitalBridge at $16/share, 15% premium, expanding AI infrastructure footprint.
SoftBank Races to Secure $22.5 Billion for Stargate by Year-End
Financial
Reports emerge that SoftBank is scrambling to raise $22.5B to meet year-end funding obligation to OpenAI for Stargate, considering borrowing against Arm stake or leveraging T-Mobile holdings after liquidating Nvidia position.
Vantage Unveils $25 Billion Texas Frontier Campus
Development
DigitalBridge portfolio company launches 1.4 GW mega-campus in Shackelford County, largest to date.
Stargate Project Launched with $500 Billion Commitment
Partnership
SoftBank, OpenAI, Oracle, MGX announce $500B joint venture; Son named chairman with financial control.
Stargate Expands to Five New U.S. Data Center Sites
Development
OpenAI, Oracle, and SoftBank announce five new U.S. sites bringing Stargate to 7 GW planned capacity and $400B+ investment over three years. Includes 1.5 GW partnership sites in Lordstown, Ohio and Milam County, Texas.
Stargate Advances Partnership with Oracle for 4.5 GW Capacity
Partnership
Stargate announces major infrastructure partnership with Oracle contributing 4.5 GW capacity, accelerating path to 10 GW target ahead of schedule.
SoftBank Breaks Ground on Lordstown, Ohio Stargate Site
Development
SoftBank begins construction on 1.5 GW-capable Lordstown site, first of two partnership facilities with OpenAI developed directly by SoftBank.
SoftBank Pledges $100 Billion U.S. AI Investment
Announcement
Masayoshi Son announces at Mar-a-Lago $100B investment in U.S. AI infrastructure over four years.
Vantage Data Centers Closes $9.2 Billion Funding
Investment
DigitalBridge and Silver Lake lead massive equity round for hyperscale expansion, upsized from $6.4B.
Arm Holdings Goes Public at $54 Billion
IPO
SoftBank takes Arm public at $54.5B valuation, retains 90.6% ownership of AI chip designer.
Colony Capital Rebrands as DigitalBridge
Corporate
Completes transformation from diversified real estate to pure-play digital infrastructure manager.
Ganzi Becomes CEO, Launches Digital Infrastructure Pivot
Leadership
Ganzi takes control of Colony Capital and begins $100B+ asset rotation into digital infrastructure.
Colony Capital Acquires Digital Bridge Holdings
Acquisition
Marc Ganzi's infrastructure firm acquired by Colony Capital; Ganzi becomes CEO-elect.
SoftBank Acquires Sprint for $20 Billion
Acquisition
SoftBank's first major U.S. infrastructure bet, acquiring 80% of Sprint Nextel for telecom capacity.
Scenarios
1
SoftBank Builds Vertically Integrated AI Empire
Discussed by: Goldman Sachs, McKinsey analysis on data center consolidation, Bloomberg reporting on SoftBank strategy
Deal closes by H2 2026 without regulatory objections. SoftBank integrates DigitalBridge's $108B asset base directly into Stargate operations, leveraging Vantage's hyperscale campuses as dedicated OpenAI infrastructure. Arm chips power the servers, SoftBank owns the buildings, and OpenAI runs the workloads—creating a closed-loop AI stack from silicon to software. This gives Son negotiating leverage over other AI labs desperate for capacity as occupancy hits 95%+ industry-wide. DigitalBridge's global reach extends Stargate beyond U.S. borders into Europe and Asia. Son achieves his stated goal: controlling every layer required to build artificial superintelligence.
2
Regulatory Scrutiny Delays or Blocks Acquisition
Discussed by: Antitrust analysts cited in S&P Global and Data Center Frontier coverage of consolidation risks
U.S. or international regulators flag SoftBank's accumulating control over critical AI infrastructure—especially given Stargate's exclusive OpenAI relationship and national security implications. The Committee on Foreign Investment in the United States (CFIUS) could raise concerns about a Japanese conglomerate owning vast U.S. data center capacity supporting frontier AI development. Remedies might include forced divestitures, operational restrictions, or deal termination. Precedent: regulators blocked multiple data center mega-mergers in the 2010s over competition concerns. If blocked, DigitalBridge remains independent but may seek alternative buyers—Microsoft, Google, or a sovereign wealth fund.
3
Power Constraints Undermine Data Center Value Proposition
Discussed by: Energy analysts at Deloitte, Grid operators like PJM, Goldman Sachs infrastructure research
Grid constraints worsen faster than expected. By 2026, regions like PJM hit critical supply shortfalls, extending data center construction timelines by 3-6 years as projected. DigitalBridge's portfolio—heavily dependent on grid power—faces capacity limitations and skyrocketing electricity costs. Hyperscalers pivot to on-site generation or nuclear micro-reactors, commoditizing traditional grid-connected facilities. SoftBank overpays for stranded assets that can't support AI's exponential power demands. The acquisition becomes SoftBank's WeWork 2.0: a multibillion-dollar bet on infrastructure that evolves faster than the buildings can adapt. DigitalBridge's $108B in managed assets see declining valuations.
4
AI Demand Crashes, Capacity Glut Emerges
Discussed by: Skeptical analysts cited in data center investment forums, contrarian tech investors
The AI infrastructure boom mirrors previous tech bubbles. By 2027, efficiency improvements (better chips, optimized models) slash compute requirements while AI hype fades among enterprises. Capacity additions from Stargate, hyperscalers, and competitors flood the market. Occupancy rates plummet from 95% to sub-70%. DigitalBridge's assets lose value as revenue per megawatt collapses. SoftBank faces write-downs on both DigitalBridge and Stargate investments simultaneously. Son's bet on physical infrastructure proves premature—the AI revolution happens, but requires far less raw capacity than 2025 projections suggested. This scenario haunts SoftBank given its track record of overpaying at cycle peaks.
Discussed by: Financial analysts cited in The Register and SiliconANGLE reporting on SoftBank's funding scramble
SoftBank fails to secure the full $22.5 billion by December 31, 2025, forcing renegotiation of Stargate terms. OpenAI could demand accelerated equity stakes, operational control concessions, or open the consortium to additional partners (Microsoft, Google) to dilute SoftBank's influence. The DigitalBridge acquisition might be delayed or restructured as SoftBank prioritizes liquidity. This scenario exposes the leverage imbalance: OpenAI controls the AI model roadmap while SoftBank struggles with capital constraints despite its infrastructure ambitions.
Historical Context
SoftBank's Sprint Acquisition and T-Mobile Merger (2013-2020)
2013-2020
What Happened
SoftBank acquired 80% of Sprint for $20.1 billion in 2013, betting on U.S. telecom infrastructure. Sprint struggled with debt and subscriber losses for seven years. After failed merger attempts in 2014 and 2017, Sprint finally merged with T-Mobile in 2020, diluting SoftBank's stake to 24% of the combined entity. The Sprint brand was retired in August 2020.
Outcome
Short Term
SoftBank gained U.S. telecom exposure but Sprint continued losing market share and burning cash.
Long Term
T-Mobile merger provided exit liquidity but at a steep discount to SoftBank's original investment thesis.
Why It's Relevant Today
Demonstrates Son's pattern: massive infrastructure bets with long timelines and mixed results. DigitalBridge is SoftBank 2.0—trading telecom towers for data centers, but the same execution risks apply.
Equinix and Digital Realty Hyperscale Expansion (2018-2024)
2018-2024
What Happened
The two largest colocation providers spent $42 billion on acquisitions over six years, consolidating the wholesale data center market. Equinix formed a $15B joint venture to fund hyperscale expansion. Digital Realty bought Ascenty for $1.8B to capture Brazilian cloud demand. Both companies pivoted from enterprise colocation to hyperscale wholesale as cloud giants consumed capacity in 100+ MW blocks.
Outcome
Short Term
Market consolidated into oligopoly with Equinix and Digital Realty controlling ~20-25% combined global share.
Long Term
Hyperscale tenants now dominate 70% of capacity versus 60% pre-consolidation; smaller operators squeezed out.
Why It's Relevant Today
SoftBank's DigitalBridge buy follows this proven playbook: acquire platforms with diverse assets, consolidate management, and reposition for hyperscale/AI demand. But SoftBank is buying near the cycle peak, unlike earlier acquirers.
The WeWork Collapse (2019-2020)
2019-2020
What Happened
SoftBank's Vision Fund invested over $10 billion in WeWork, valuing it at $47 billion in early 2019. The IPO attempt in September 2019 revealed massive losses and governance failures. The offering was pulled, CEO Adam Neumann ousted, and valuation crashed to $8 billion. SoftBank injected another $5B in emergency funding and eventually took control at a fraction of its original investment.
Outcome
Short Term
Vision Fund wrote down billions, SoftBank's credibility damaged, Masayoshi Son apologized publicly for 'poor judgment.'
Long Term
WeWork emerged from bankruptcy in 2023 as a much smaller company; SoftBank lost most of its investment.
Why It's Relevant Today
Highlights SoftBank's vulnerability to overpaying for hyped sectors. If AI infrastructure demand disappoints like WeWork's occupancy projections, the DigitalBridge acquisition could trigger similar write-downs.
