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BillionaireTracker

John Oyler vs Hiroshi Ishibashi: who is richer?

John Oyler is richer, with a net worth of $2.31 billion versus Hiroshi Ishibashi's $2.31 billion — a gap of $2.16 million, or 1.00 times as much (as of November 7, 2026).

John Oyler

Source of wealth: Biotech

$2.31B

Made since you opened this page: $0.00

Hiroshi Ishibashi

Source of wealth: Tires

$2.31B

Made since you opened this page: $0.00

Side-by-side

John OylerHiroshi Ishibashi
Net worth$2.31B$2.31B
World rank#1760#1762
Makes per second$15.98$21.87
Makes per day$1.38M$1.89M
Today+$95.12M−$71.4M
Source of wealthBiotechTires
Age5880
CountryUnited StatesJapan

Net worth by year

YearJohn OylerHiroshi Ishibashi
2026$1.9B$2.2B
2025$1.5B$1.2B
2024$1B$1.2B
2023$1.3B$1.1B
2022$1.1B$1B
2021$1.8B$1.1B
2018—$1.1B

Frequently asked questions

Who is richer, John Oyler or Hiroshi Ishibashi?

John Oyler is richer, worth $2.31 billion compared with Hiroshi Ishibashi's $2.31 billion. The difference is $2.16 million.

Who makes more per second, John Oyler or Hiroshi Ishibashi?

Hiroshi Ishibashi makes more: about $21.87 per second versus $15.98. Per day that's $1.89M vs $1.38M.

How many times richer is John Oyler than Hiroshi Ishibashi?

John Oyler has about 1.00 times Hiroshi Ishibashi's net worth.