SoftBank Group Corp. forecast a record ¥1.35 trillion operating loss for the fiscal year ended in March, a sign of how badly Masayoshi Son’s bets on technology startups have been battered in recent months.

The company expects to record a ¥1.8 trillion ($16.7 billion) loss from its Vision Fund and another ¥800 billion in losses from SoftBank’s own investments. It has written down the value of investments in companies, including office rental startup WeWork and satellite operator OneWeb, which filed for bankruptcy last month.