SoftBank boosted by surging value of OpenAI stake
Japanese group records $45bn gain on holding in ChatGPT maker over its financial year
Japanese group records $45bn gain on holding in ChatGPT maker over its financial year

Japanese billionaire Masayoshi Son’s group has already invested more than $30bn in ChatGPT maker

Japanese group has suffered from recent share falls and a negative outlook from rating agency S&P

Japanese conglomerate reports turnaround from loss a year earlier

Gains for OpenAI and Arm investor help Nikkei 225 to record high after holiday closure

Masayoshi Son faces investor nerves with massive spending on AI investments

Net profit doubles to $16bn on gains from OpenAI and PayPay holdings