Answer · confidence: partial
How do wealth lists guess net worth, and why do their numbers differ?
Research question: How do major wealth rankings estimate net worth, and how much do their figures for the same person often differ?
The records show that Forbes estimates wealth by looking at ownership stakes in large businesses to work out what each person actually owns 9, and it cites net worth in US dollars based on documented assets while accounting for debt 16. Bloomberg applies a standard 5 percent liquidity discount to most closely held companies whose assets may be hard to sell 1, and it removed Elon Musk's unvested shares, which reduced his figure by $111 billion 2. The figures for the same person often differ widely: Forbes estimated Dieter Schwarz at $67.2 billion in 2026 19, Bloomberg ranked him at $28 billion in May 2021 15, and Bilanz estimated about 41.5 billion euros in September 2019 23. Other gaps include Bloomberg's $9.1 billion for David Geffen in 2023 against Forbes' $8.6 billion as of 2024 18, and Forbes' $700 million for Selena Gomez as of 2025 against Bloomberg's $1.3 billion in 2024 22. The newest fact is from 2026 19, but the facts do not fully explain why the estimates diverge, and the wealth at the top is hard to measure in general 3.
Checked 2026-10-18. Only documented and supported facts are used.
Dig deeper on this questionSources
[1] documented
Bloomberg's Billionaires Index applies a standard 5 percent liquidity discount to most closely held companies, whose assets may be hard to sell, when estimating net worth.
"A standard liquidity discount of 5 percent is applied to most closely held companies where assets may be hard to sell."Bloomberg Billionaires Index: How Bloomberg Ranks World’s Richest Billionaires
[2] supported
Bloomberg's Billionaires Index removed Elon Musk's unvested shares from his net worth calculation, which reduced his figure by $111 billion.
"Because the shares are unvested they were removed from the net worth calculation, resulting in a $111 billion drop."Elon Musk: Bloomberg Billionaires Index
[3] supported
Recent studies may underestimate the level and rise of wealth inequality because financial globalization makes wealth at the top increasingly hard to measure.
"Recent studies, however, may underestimate the level and rise of inequality, as financial globalization makes it increasingly hard to measure wealth at the top."Global Wealth Inequality (2019)
[4] supported
Leaks from financial institutions, tax amnesties, and macroeconomic statistics of tax havens are new data sources that can be used to better capture the wealth of the rich.
"I discuss how new data sources (leaks from financial institutions, tax amnesties, and macroeconomic statistics of tax havens) can be leveraged to better capture the wealth of the rich."Global Wealth Inequality (2019)
[5] supported
Forbes journalists build their global billionaire ranking by compiling international information on large fortunes, similar to how national rich lists are compiled.
"Similartothenationalrichlists,Forbesjournalistscompileinternationalinformation onbigfortunesincreatingthewealthranking(Forbes2014)."Looking for the missing rich: tracing the top tail of the wealth distribution (2019)
[6] supported
Forbes ranks each person individually, while the table's family figures are totals for everyone named in a row, so the two can differ in scope.
"Il s'agit de la fortune totale des personnes mentionnées dans la ligne, alors que le classement Forbes est réalisé sur chaque personne individuellement"Liste de milliardaires français
[7] supported
Forbes includes only people whose personal net wealth exceeds one billion US dollars.
"Togetaspotamongthe wealthyontheForbeslist,personalnetwealthhastoexceedonebillionUSdollars."Looking for the missing rich: tracing the top tail of the wealth distribution (2019)
[8] supported
Bloomberg's figures for the table are professional fortunes (wealth tied to business holdings) valued as of 27 July 2024.
"Le tableau donne les valeurs des fortunes professionnelles au 27 juillet 2024"Liste de milliardaires français
[9] supported
Forbes estimates billionaire wealth by looking at ownership stakes in large businesses to work out what each wealthy person actually owns, rather than inferring it from dividends or capital gains.
"the Forbes approach of looking at ownership in large businesses to figure out the true wealth of"Trends in US Income and Wealth Inequality: Revising After the Revisionists (2020)
[10] supported
Capital's 2023 ranking is based on each person's fortune around mid-2023.
"ce classement dit 2023 est établi d'après la fortune des intéressés vers la mi-2023."Liste de milliardaires français
[11] supported
For China, Europe, and the United States combined, the top 1% wealth share rose from 28% in 1980 to 33% in recent years, while the bottom 75% share hovered around 10%.
"For China, Europe, and the United States combined, the top 1% wealth share has increased from 28% in 1980 to 33% today, while the bottom 75% share hovered around 10%."Global Wealth Inequality (2019)
[12] supported
According to Forbes, the 400 wealthiest Americans, each with wealth above $1.7 billion, owned $2.4 trillion in 2016.
"According to Forbes, the top 400 wealthiest Americans (who had wealth above $1.7 billion) owned $2.4 trillion in 2016."Trends in US Income and Wealth Inequality: Revising After the Revisionists (2020)
[13] supported
Including billionaires with between $1 billion and $1.7 billion adds roughly $600 billion, bringing total billionaire wealth to around $3 trillion in 2016 by the Forbes-based estimate.
"Billionaires with more than 1 billion and less than $1.7 billion add close to an extra $600 billion, for a total billionaire wealth of around $3 trillion."Trends in US Income and Wealth Inequality: Revising After the Revisionists (2020)
[14] supported
Forbes ranks Alain and Gérard Wertheimer separately, while the table presents them together, so the same pair can appear under different totals and rankings.
"Alain et Gérard Wertheimer 72 [ 6 ] 98,2 95 89,5 Chanel Classés séparément par Forbes"Liste de milliardaires français
[15] supported
Bloomberg Billionaires Index ranked Dieter Schwarz 56th richest person in the world, with an estimated fortune of 28 billion US dollars.
"Laut dem Bloomberg Billionaires Index belegte er mit Stand 19. Mai 2021 und einem geschätzten Vermögen von 28 Milliarden US-Dollar den 56. Platz auf der Rangliste der reichsten Menschen der Welt."Dieter Schwarz
[16] supported
Forbes cites each billionaire's net worth in US dollars, based on documented assets, and accounts for debt and other factors.
"The net worth of each individual is cited in United States dollars , based on their documented assets, and accounting for debt and other factors."The World's Billionaires
[17] supported
The list is based on an annual assessment of wealth and assets by Forbes, combined with data from the Bloomberg Billionaires Index.
"It is based on an annual assessment of wealth and assets by Forbes and by data from the Bloomberg Billionaires Index"List of wealthiest Americans by net worth
[18] supported
Bloomberg valued David Geffen at US$9.1 billion in 2023, while Forbes estimated his net worth at $8.6 billion as of 2024.
"Reports from others business-related publications such as Bloomberg L.P. could differ; for instance, they valued David Geffen at US$9.1 billion in 2023, [ 2 ] while Forbes estimated his net worth at $8.6 billion as of 2024."List of celebrities by net worth
[19] supported
Forbes estimated Dieter Schwarz's fortune at 67.2 billion US dollars, which would place him first among the richest Germans.
"Das Magazin Forbes schätzte 2026 das Vermögen von Dieter Schwarz auf 67,2 Milliarden US-Dollar, womit er auf Platz 1 in der Liste der reichsten Deutschen stünde."Dieter Schwarz
[20] supported
Forbes' list counts as billionaires people estimated to have a net worth of at least US$1 billion.
"i.e., they are estimated to have a net worth of US$1 billion or more."The World's Billionaires
[21] supported
The Forbes 400 Richest Americans list has been published every year since 1982.
"The Forbes 400 Richest Americans list has been published annually since 1982."List of wealthiest Americans by net worth
[22] supported
Forbes estimated Selena Gomez's net worth at $700 million as of 2025, far below the $1.3 billion figure Bloomberg reported in 2024.
"However, Forbes estimates Selena Gomez net worth at $700 million, as of 2025."List of celebrities by net worth
[23] supported
The business magazine Bilanz estimated Schwarz's total wealth at about 41.5 billion euros in September 2019.
"auf ca. 41,5 Milliarden Euro"Dieter Schwarz
[24] supported
Forbes' ranking excludes royalty and dictators whose wealth comes from their positions, as well as people whose wealth cannot be fully ascertained.
"This ranking excludes royalty and dictators whose wealth comes from their positions"The World's Billionaires
[25] supported
According to Forbes, Elon Musk was the wealthiest person in the United States as of December 2025, with a net worth of about $428 billion from Tesla and SpaceX.
"Elon Musk 428 Tesla , SpaceX 54"List of wealthiest Americans by net worth
[26] supported
Because estimates varied widely, Schwarz was at one point considered the richest individual in Germany under various wealth estimates.
"Er galt eine Zeitlang nach unterschiedlichsten Vermögensschätzungen als die reichste Einzelperson in Deutschland."Dieter Schwarz
[27] supported
A record 902 American billionaires made the Forbes ranking, together worth a record $6.8 trillion.
"A record 902 American billionaires made the ranking, worth a record $6.8 trillion combined."List of wealthiest Americans by net worth
[28] supported
The combined net worth of Forbes' billionaires rose from less than $1 trillion in 2000 to over $16 trillion in 2025.
"The net worth of the world's billionaires increased from less than $1 trillion in 2000 to over $16 trillion in 2025."The World's Billionaires
[29] supported
Another major billionaire ranking, the Bloomberg Billionaires Index, is a separate list that can be compared with Forbes.
"Bloomberg Billionaires Index"The World's Billionaires
[30] supported
Forbes' valuation for Michael Jackson's estate is combined across his life and after his death, so the figure reflects both periods.
"Combined during his life and after his death"List of celebrities by net worth