Masayoshi Son

Money Moves

Controls roughly 90% of Arm; primary financial beneficiary of the pivot

For 35 years, Arm Holdings sold blueprints, not chips. On May 6, 2026, Arm formalized a different future: a $15 billion direct chip-sales business by fiscal 2031, anchored by an in-house data center processor called the Arm AGI CPU.

Updated May 31

Money Moves

Driving SoftBank's debt-financed expansion of its OpenAI stake

SoftBank Group cut its target for a margin loan backed by OpenAI shares from $10 billion to as low as $6 billion after lenders pushed back, Bloomberg reported May 8. Lenders cited the difficulty of pricing a private company with slowing growth.

Updated May 31

Money Moves

Largest single investor in OpenAI with over $70 billion committed

Four months ago, Sam Altman told the world OpenAI had $1.4 trillion in data center commitments. Now the company is telling investors the real number is $600 billion — and that it would rather rent computing power than build its own facilities. The retreat, disclosed to investors in February 2026 and detailed publicly on March 22, marks the sharpest pivot in the short history of the artificial intelligence spending boom.

Updated May 30

Money Moves

Actively monetizing SoftBank portfolio assets to fund AI investments

PayPay, the mobile wallet used by three out of four smartphone owners in Japan, began trading on the Nasdaq on March 12 after raising $880 million in its initial public offering. The company sold roughly 55 million American Depositary Shares at $16 each, below its marketed range of $17 to $20, valuing the business at approximately $10.7 billion. It is the largest stock offering by a Japanese company on a U.S. exchange in over a decade.

Updated May 30

Money Moves

SoftBank posted surprise quarterly profit in May 2026 on $45B in OpenAI valuation gains; $40B bridge loan fully syndicated to 8+ banks

After the $122 billion round closed in April, OpenAI ended its Azure cloud exclusivity and capped Microsoft's revenue share at $38 billion through 2030. On May 18, a jury dismissed Elon Musk's suit seeking $134 billion and the reversal of OpenAI's for-profit structure.

Updated May 29

Rule Changes

Controls Arm through SoftBank's roughly 90% stake

Arm Holdings designs the chip architecture found in roughly 99% of smartphones and a growing share of data-center processors. On May 6 it reported record quarterly results. Five days later, Bloomberg revealed the Federal Trade Commission had opened an antitrust probe into how the company distributes those designs.

Updated May 20

Money Moves

Leading SoftBank's pivot to AI infrastructure ownership while racing to meet $22.5B year-end Stargate funding deadline

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.

Updated May 16