SoftBank is a Japan-based telecom and e-commerce conglomerate that has expanded mainly through acquisitions, and its key assets include a 40%-owned mobile and fixed broadband telecom operator business in Japan. It also owns 90% of semiconductor chip designer Arm Holdings following the 2023 IPO of this business, and has a vast portfolio of mainly internet- and e-commerce-focused early-stage investments. It is also general partner of the $100 billion SoftBank Vision Fund 1 and sole investor in SoftBank Vision Fund 2, both of which primarily invest in pre-IPO internet and AI companies.