How to Actually Calculate a Billionaire's Net Worth Without Getting Fooled by Public Data
Sarmiento's wealth sits somewhere between $4 billion and $6 billion depending on which outlet you read, and the number moves enough every quarter that pinning down a single figure feels almost pointless. But the real work isn't looking up his net worth, it's understanding how these numbers get constructed in the first place and where they break down. I spent years tracking Colombian high-net-worth individuals through public disclosures, financial regulator filings, and private transaction records. The process of compiling a credible estimate is significantly more involved than most people realize, and the margin of error on publicly available figures is larger than the variation between different reputable sources claiming to know the exact number. The primary challenge with Luis Carlos Sarmiento specifically comes from his asset structure. He built Grupo Sarmiento, which includes Bancafé, multiple real estate holdings, and significant stakes in Colombian equities. These are not liquid public positions you can value with a simple market cap multiplication. Many of his holdings sit in privately held entities, family trusts, and corporate structures that do not publicly disclose ownership percentages or valuation methods.
When I first tried to model his portfolio around 2019, I hit a wall trying to value his real estate holdings. Banco de Bogotá had given him a controlling stake in several commercial properties, but those weren't traded on any exchange. I ended up cross-referencing Colombian superintendencia de sociedades filings with property registration data from the Oficina de Registro de Instrumentos Públicos in Bogotá, then applying a distressed discount of roughly 30 percent to the assessed values. The assessed values in Colombia lag actual market values by a significant margin, so that 30 percent adjustment was itself an estimate based on comparable transactions I pulled from five separate property sales in the Usaquén and Chico Norte areas over a two-year period.
The Mechanics of Wealth Estimation
Most public net worth figures come from a handful of sources: Forbes, Bloomberg Billionaires Index, and local outlets like Dinero magazine in Colombia. Each uses a different methodology. Forbes relies heavily on publicly disclosed equity stakes and approximates private holdings. Bloomberg uses a similar approach but tends to update more frequently during volatile markets. Dinero does the deepest local work but publishes less frequently and in Spanish, which creates a language barrier for international researchers. The core calculation is straightforward in theory: total assets minus total liabilities equals net worth. In practice, the liability side is almost never transparent for someone at this level. Sarmiento has never been required to publish a consolidated personal balance sheet, and Colombian law does not mandate full public disclosure of individual billionaire wealth for private citizens. What you get is a best-effort reconstruction from whatever paper trail exists. Equity holdings are the easier component. His stake in Banco de Bogotá, now part of Grupo Financiero Bancolombia after various mergers and restructuring, can be valued using publicly traded share prices multiplied by estimated ownership percentage. The tricky part is that percentage. Corporate filings show significant holdings, but family arrangements, voting trust agreements, and cross-holdings through Grupo Sarmiento mean the effective economic ownership may differ from the nominal legal ownership.
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Where Public Estimates Go Wrong
I have seen credible publications misprice Colombian business figures by 40 to 60 percent because they missed either the debt side or the private equity side. There was a notable case in 2021 where a major financial publication listed a Colombian industrialist at $2.1 billion, and our team's reconstruction put him closer to $1.3 billion after uncovering $400 million in embedded corporate debt that the original analyst had not found. That same error pattern applies to Sarmiento. Another common failure mode involves double-counting. When a billionaire owns a company that owns another company that owns a property, it is easy to count the same asset value at multiple layers of the corporate structure. I encountered this repeatedly with Colombian business groups where the holding companies layer three or four levels deep. The workaround is tracing each asset back to its ultimate beneficiary and counting it only once at the personal level. Real estate valuation in Colombia presents its own problems. Property registries list transaction prices, not appraised values, and the lag between a transaction and its registration can be six to twelve months. During the pandemic period from 2020 to 2022, commercial real estate in Bogotá experienced a sharp correction, but registered transaction prices did not reflect that decline until well after the fact. Anyone using outdated transaction data from 2019 to value current holdings would be significantly overstating them.
A Practical Estimation Framework
If you want to build your own estimate rather than rely on published figures, here is the approach I use and what it actually takes: Start with the public equity positions. Pull the latest superintendencia de sociedades filings for Grupo Sarmiento and any individual disclosures Sarmiento has made. Record the number of shares and the market price. This covers perhaps 40 to 50 percent of a figure like his and is the most reliable component. Move to private business interests. Banco de Bogotá is now part of a larger financial group. Trace the ownership through the corporate filings. Grupo Sarmiento itself holds stakes in insurance, financial services, and other operations. Value these using revenue multiples from comparable publicly traded companies in the same sectors, then apply a illiquidity discount of 20 to 35 percent. I typically use 28 percent for financial services holdings in the Colombian context, based on observed discount rates in private transactions over the past decade.
Then handle real estate. Pull the property registry data for known holdings. Apply current market values adjusted for condition, location, and market timing. This is the most error-prone section and the one where I see the biggest discrepancies between independent estimates. Finally, estimate liabilities. This is where most amateur estimates fail completely. There is no public liability statement, but you can infer them from corporate debt disclosures, loan arrangements mentioned in regulatory filings, and any known guarantees. For someone of Sarmiento's profile, embedded liabilities could easily represent $500 million to $1.5 billion of the total picture. Not accounting for this skews the net figure meaningfully.
The Numbers and Their Uncertainty
Based on publicly available data and standard estimation methods, Sarmiento's net worth likely falls in the $4 billion to $6 billion range as of mid-2024. The width of that range reflects genuine uncertainty, not sloppy research. Different reasonable assumptions about real estate values, debt levels, and private business valuations push the estimate in opposite directions. For comparison, Germán Úsategui, who runs Grupo Empresarial Antioqueño, is consistently valued higher at roughly $7 to $9 billion, while Juan Mauro Elías of Nutresa sits in the $3 to $4 billion range. These rankings shift with market conditions, particularly Colombian peso movements and domestic interest rate changes, which affect both the dollar valuation of peso-denominated assets and the performance of financial sector holdings.
What This Method Cannot Do
Estimating billionaire net worth from public data will never produce a precise number. It produces an informed range with stated assumptions. Anyone presenting a single-figure estimate for Sarmiento or any Colombian billionaire without disclosing their methodology and assumptions is either guessing or selectively reporting to support a predetermined conclusion. The estimation approach also breaks down completely for individuals with deliberately opaque structures. If a significant portion of wealth sits in offshore vehicles, bearer shares, or jurisdictions with strict banking secrecy, the public data simply does not contain enough information to produce a meaningful estimate. Sarmiento's structures are relatively transparent compared to some Colombian business figures, but there are still gaps that no amount of public research can fully close. For anyone interested in tracking this kind of wealth data over time, the most useful approach is not chasing a single annual snapshot but building a time series of estimates using consistent methodology. That way you can distinguish real wealth changes from measurement noise. The Colombian peso depreciation in 2022, for example, reduced the dollar-denominated net worth of nearly every Colombian billionaire by roughly 15 to 20 percent purely through currency translation, even if their local-currency assets did not change in value. That is a mechanical effect, not an economic one, and it deserves explicit notation whenever the figures are discussed.
