SoftBank has secured a $10 billion margin loan backed by its stake in OpenAI, according to the company's financial report filed August 4. The Japanese technology investment company said the proceeds are for general corporate purposes and for Vision Fund II-2, its second continuation fund focused on late-stage AI and robotics investments.
The loan represents one of the largest known pledges of OpenAI equity as collateral. SoftBank's OpenAI holding has become a material asset on its balance sheet as the AI company's valuation has climbed toward $200 billion in secondary markets. Using concentrated stakes in private companies as loan collateral carries execution risk: if OpenAI's valuation fell sharply or SoftBank faced margin calls, the company would face pressure to liquidate or rebalance the position.
SoftBank has been one of OpenAI's earliest and largest backers. The Vision Fund made its first OpenAI investment in 2019. SoftBank founder Masayoshi Son has publicly committed to funding AI infrastructure, particularly data centers and robotics development, as core pillars of the group's next growth phase. The company has previously borrowed against stakes in portfolio companies to fund acquisitions and new investments, though the scale and the use of an AI stake mark a shift in how the company is deploying its venture positions.
The loan carries standard margin terms, though the filing does not disclose the interest rate, loan maturity or lender identity. Such facilities typically require the borrower to maintain a minimum equity cushion; if the collateral falls below a threshold, the lender can force a sale or demand additional security.
SoftBank's reliance on margin debt against its OpenAI stake shows how founder-led technology conglomerates are now treating their venture portfolios as balance sheet resources rather than purely as investment vehicles held to maturity. The $10 billion facility is larger than the annual capital budgets of many regional banks and demonstrates the scale of capital that can now be unlocked by holding stakes in companies that have achieved private unicorn status.
SoftBank reported lower quarterly profit in its latest earnings, with operating profit declining 42 percent year-over-year in the quarter ended June 30. The group has faced headwinds from volatility in its public equity holdings and the continued losses at Vision Fund II as it deploys capital into later-stage companies with longer paths to exit or profitability.
The margin loan is available for use across SoftBank's operating entities and its continuation fund, giving the company flexibility to pursue both near-term operational needs and new investment commitments. If OpenAI's valuation continues to climb or stabilize in secondary markets, the loan could potentially be refinanced at better terms or repaid without pressure to sell the underlying stake.
