Vision Fund slide points to more pain for SoftBank's Son

FILE PHOTO: Japan's SoftBank Group Corp Chief Executive Masayoshi Son attends a news conference in Tokyo, Japan, Nov. 5, 2018. REUTERS/Kim Kyung-Hoon/File Photo

TOKYO (Reuters) - Sliding valuations in the listed portfolio of SoftBank Group Corp's Vision Fund unit point to more pain for CEO Masayoshi Son when the group reports April-June earnings on Monday as investors go cool on the high-growth firms he favours.

Vision Fund's public portfolio first-quarter loss could top $10 billion, Redex Research analyst Kirk Boodry estimated, after falls in robotics firm AutoStore Holdings Ltd, e-commerce firm Coupang Inc and artificial intelligence firm SenseTime Group Inc, whose shares fell by almost half on the last day of June.