SoftBank Group Corp. swung to losses for the December quarter due to a drop in the value of the Vision Fund’s public holdings, boding ill for founder Masayoshi Son who has to raise $500 billion for the Stargate artificial-intelligence project.

SoftBank Group Corp on Wednesday swung to a loss of 369.16 billion yen ($2.4 billion) in the third quarter of FY24 as shares of some of its top portfolio companies declined sharply during the period.

The Tokyo-based company reported a net loss of ¥369.2 billion ($2.4 billion) for the fiscal third quarter amid volatility in its Vision Fund unit.