> s of October 2021, Bloomberg Billionaires Index estimated Son's net worth at US$23.1 billion, making him the second richest man in Japan and 68th richest person in the world,[1] despite having the distinction of losing the most money in history (approximately $70bn during the dot com crash of 2000).[4]
After that the big success came with investment in Ali Baba.
> In October 1999, SoftBank became a holding company.[21] In 2000, SoftBank made its most successful investment – $20 million to a then-fledgling Chinese Internet venture called Alibaba.[22] This investment turned into $60 billion when Alibaba went public in September 2014.[23][24]
https://en.wikipedia.org/wiki/Masayoshi_Son
> s of October 2021, Bloomberg Billionaires Index estimated Son's net worth at US$23.1 billion, making him the second richest man in Japan and 68th richest person in the world,[1] despite having the distinction of losing the most money in history (approximately $70bn during the dot com crash of 2000).[4]
After that the big success came with investment in Ali Baba.
https://en.wikipedia.org/wiki/SoftBank_Group
> In October 1999, SoftBank became a holding company.[21] In 2000, SoftBank made its most successful investment – $20 million to a then-fledgling Chinese Internet venture called Alibaba.[22] This investment turned into $60 billion when Alibaba went public in September 2014.[23][24]