FILE PHOTO: SoftBank Corp's logo is pictured at a news conference in Tokyo, Japan, February 4, 2021. REUTERS/Kim Kyung-Hoon SoftBank Investment Advisers, which manages Vision Fund, is exploring starting a structured credit fund seeking mid-teens return to give tech startups more liquidity options, a person familiar with the matter told Reuters. In recent weeks, several major investment and private-equity firms have stepped in to fill the chasm created in tech investing by the collapse of Silicon Valley Bank in March.