On April 1, 2026, SoftBank Group executed an additional investment of $10 billion in OpenAI. In Japanese yen, this amounts to approximately 1.6 trillion yen.
SoftBank Group Executes $10 Billion Additional Investment in OpenAI
This article is a translation. Read the Japanese original
SoftBank Group's investment cash flow for the period from April to June 2026 was a deficit of 2.5 trillion yen. The 1.6 trillion yen investment in OpenAI accounts for slightly more than 6 of this investment cash flow. During the same period, the company also spent 1.2 trillion yen on acquisitions related to power generation facilities and data center assets in the United States, bringing the total outflow of funds due to investments to over 2.5 trillion yen.
SoftBank Group plans to invest $10 billion in OpenAI in July and another $10 billion in October. Combined, these additional investments will total approximately 3.2 trillion yen. As of the end of June 2026, the company's cash balance was approximately 3.9 trillion yen, meaning the planned total investment of 3.2 trillion yen would represent slightly more than 8 of the current cash balance.
Sources
- 【OpenAIへの出資1.6兆円】ソフトバンクGの決算書にどれほど影響を与えたのか、説明できますか？ - ダイヤモンド・オンライン （Google News: OpenAI、2026-09-11）