Slim vs Walton

América Móvil and Walmart.

The differences

Forbes puts Rob Walton about $21.7B ahead of Carlos Slim Helú.Forbes figures from 17 Oct 2026 and 17 Oct 2026.
Carlos Slim Helú: founded it. Rob Walton: inherited it.
Carlos Slim Helú is from Mexico; Rob Walton is from United States.
Carlos Slim Helú has held a public or government advisory role; Rob Walton has none on record.

Put someone else on either side

Slim

Walton

Net worth, Forbes: $120BForbes, 17 Oct 2026; $142BForbes, 17 Oct 2026
Net worth, Bloomberg: $118BBloomberg, 10 Oct 2026; $144BBloomberg, 17 Oct 2026
Forbes rank: No. 15Real-Time list, 20 Sep 2026; No. 12Real-Time list, 17 Oct 2026
Billionaire since: 1991First year on a Forbes billionaires list: Forbes says he 'first appeared on Forbes' Billionaires list in 1991 at $1.7 billion', mainly on his Grupo Carso stake; Not stated

How it started: Founded itBegan building Grupo Carso in 1965 at 25; Inmobiliaria Carso was incorporated in January 1966. He bought into Telmex at its 1990 privatisation; América Móvil was spun off from Telmex in 2000; Inherited itSon of Walmart founder Sam Walton; joined Walmart in 1969 and chaired it from 1992 to 2015
Main source: Stakes in América Móvil, Grupo Carso and Grupo Financiero InbursaBloomberg: his most valuable asset is a majority shareholding in America Movil, followed by Grupo Carso and Inbursa; Walmart stock held through Walton Enterprises and the Walton Family Holdings TrustBloomberg: 'The majority of Rob Walton's fortune is derived from Walmart'
Companies: América Móvil, Grupo CarsoAmérica Móvil: Honorary and life chairman; Grupo Carso: Honorary lifetime chairman; WalmartWalmart: Retired chairman; left the board in 2024
Biggest stake: Grupo Carso76% owned; WalmartStake not stated

Born: 28 Jan 1940Mexico City, Mexico; Not stated
Country: MexicoLives in Mexico City, Mexico; United StatesLives in Bentonville, Arkansas, United States
Education: Bachelor's degreeCivil engineering degree, National Autonomous University of Mexico (UNAM), 1961; Graduate degreeBA, University of Arkansas; JD, Columbia University
Parents: Father Julián Slim Haddad, a Lebanese immigrant, owned the dry-goods store La Estrella de Oriente and property in central Mexico City; mother Linda Helú; Son of Sam and Helen Walton, who opened a five-and-dime store in Arkansas in 1950 and later created Walmart

Giving Pledge: Not a signer; Not a signer
Foundation: Fundación Carlos SlimFounded 1986; he also chairs Fundación Telmex; Rob Walton FoundationSeparate from the family-wide Walton Family Foundation
Lifetime giving: $4.2BForbes, 26 Mar 2019. Dated Forbes estimate: donations to the Carlos Slim Foundation since 2006, per his spokesman; Not stated

Role now: Chair of the boardHonorary lifetime chairman of Grupo Carso; chairman of IDEAL and of his foundations; RetiredRetired chairman of Walmart; owner in the Denver Broncos' Walton-Penner ownership group
Successor: His sons have taken over: Carlos Slim Domit chairs América Móvil and Grupo Carso; Patrick Slim Domit is co-chairman of América Móvil and was CEO of Grupo Carso; Marco Antonio Slim Domit is a Grupo Carso director; Greg Penner, his son-in-law, is Walmart's non-executive chairman; John Furner is president and CEOSteuart Walton is a director, not an executive. The Delaware court opinion identifies Penner as his son-in-law
Public office: Member, UN high-level advisory group on energy and climate change; Co-leader, Mexico City Historic Centre citizens' advisory councilYear not stated; 2001-present; None found
Legal record: 2001: Texas state district court (Dallas); reversed by the Texas Court of Appeals in 2004After a jury verdict for COC Services in a dispute over a CompUSA franchise deal, the trial judge ordered him personally to pay $85.5 million; in 2004 the Court of Appeals reversed the judgment against him and his companies and ruled that COC take nothing from them.; None found