Net Worth Comparison

Iris Fontbona & family vs Mark Zuckerberg

Real-time net worth, career, and company comparison — updated June 2026.

Iris Fontbona & family

Iris Fontbona & family

CEO, Mining
Net Worth
$47.306B
+2.77% today
Mark Zuckerberg
Wealthier

Mark Zuckerberg

Net Worth
$207.68B
+$160.4B more than Iris
+0.40% today

Wealth at a Glance

Iris Fontbona & family$47.306B
Mark Zuckerberg$207.68B

Net worth gap: $160.4B — equivalent to 77% of Mark's total wealth.

Tale of the Tape

Iris Fontbona & family
Mark Zuckerberg
$47.306B
Net Worth
$207.68B
#39
Global Rank
#6
83
Age
41
CHILE
Country
UNITED STATES
Mining
Source of Wealth
Facebook
Metals & Mining
Industry
Technology
Catholic high school
Education
Harvard University (dropped out)
Annual Salary
$0.0M

Career Highlights

Iris Fontbona & family

  1. 2005
    Inherited Luksic Group
    Assumed control of the Luksic Group after the death of her husband, Andrónico Luksic Abaroa.
  2. 2015
    Donated to Chilean Telethon
    Made a record donation of approximately $3.9 million to the Chilean Telethon.

Mark Zuckerberg

  1. 2004
    Founded Facebook
    Co-founded Facebook while at Harvard University.
  2. 2008
    Became a Billionaire
    Became a billionaire at age 23.
  3. 2012
    Facebook IPO
    Took Facebook public, making it one of the largest IPOs in history.
  4. 2021
    Meta Rebranding
    Facebook rebranded to Meta Platforms, Inc., focusing on the metaverse.

Net Worth History

YearIrisMarkLeader
2020$17.4B
2022$65B
2023$51.5B$170BMark
2024$51.5B$224.1BMark
2025$52.6B$222BMark
2026$47.306B$207.68BMark

The Verdict: Mark Zuckerberg vs Iris Fontbona & family

As of June 2026, Mark Zuckerberg leads this comparison with a net worth of $207.68B, placing at #6 in the global rankings. Iris Fontbona & family follows at $47.306B — a gap of $160.4B.

The two leaders come from distinct industries — Metals & Mining for Iris Fontbona & family and Technology for Mark Zuckerberg. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.

Iris Fontbona & family is 83 years old versus 41 for Mark Zuckerberg, a difference of 42 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.

Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.