On 21 October 2026 the Forbes real-time list had 43 billionaires from Japan, with a combined net worth of $232 billion. That is 1.1% of the world total and puts Japan #17 of 77 countries on the list. On 19 January 2020 it was 32 billionaires and $145 billion (1.5% of the world).
The video shows the richest people one by one. This article looks at what the tiles cannot show: the whole list, where the money comes from, how the country total moved, and what the average billionaire looks like.
How concentrated is the wealth?
The richest person, Tadashi Yanai & family, holds $65 billion, or 28% of the national total. The top three together hold 63% and the top ten 76%. On the world list Tadashi Yanai & family is ranked #30.
The average billionaire from Japan had $4.5B in January 2020 and has $5.4B now, roughly the same.
The number of people on the list grew from 32 to 43, so the increase in the total reflects both higher valuations and more people being listed.
Where the money comes from
Counting each person under the main industry Forbes gives, fashion and retail is the largest source of wealth in Japan: $96 billion, or 41% of the total. It is followed by finance and investments (24%), manufacturing (12%).
How the total moved
The combined net worth of billionaires from Japan started at $145 billion in 2020, fell to $104 billion on 21 March 2020 and reached its highest point of $273 billion on 1 June 2026, when the list had 43 billionaires from Japan.
By 31 August 2026 (the last day of the country series) the total was $236 billion, 14% below that peak.
The number of billionaires from Japan on the list ranged from 24 to 51 during this period. A person can enter or leave the list because the cut-off moves with the market, not only because their own wealth changes.
Biggest movers among the people in the video
Comparing 1 February 2020 with 21 October 2026, the largest relative gains were Masayoshi Son ($21B to $61B, +185%), Kentaro Ogawa ($1.4B to $3.2B, +133%) and Tadashi Yanai ($29B to $65B, +125%).
The weakest development was Shigenobu Nagamori ($4.9B to $1.9B, -61%) and Hiroshi Mikitani ($5.4B to $3.2B, -41%).
Who the billionaires are
Of the 43 billionaires from Japan, 2 are women (4.7%). Ages are known for 4 of them; their average age is 52 and the median 50.
How to read the numbers
- Figures are Forbes estimates in current US dollars, taken from the real-time list. The source project states that it makes no claim to accuracy or completeness.
- A person is assigned to a country by citizenship, not by where they live. A family entry (marked “& family”) refers to the family fortune.
- Daily values are noisy because they follow stock prices, so the video steps through the data in half-month intervals and the chart above shows weekly values.
- The country series ends on 31 August 2026; the list used for the 21 October 2026 numbers is the latest one available.
Sources
Forbes real-time billionaires, compiled by komed3 (rtb-api on GitHub, MIT licence).
