Market capitalization is the total value the stock market puts on a company: its share price multiplied by the number of shares outstanding. Each point here is the share count reported in a filing multiplied by the closing price on that filing date, adjusted for later stock splits, so the history moves when a new filing arrives rather than with each day's trading. A larger market cap means investors collectively value the company more highly; by itself it says nothing about profit or debt. Annual points keep the latest observation in each calendar year.
Aon plc market cap for the quarter ending 2026-07-28 was $80.88B, a 5.15% increase year-over-year.
Aon plc market cap for the quarter ending 2026-04-30 was $66.6B, a 15.52% decline year-over-year.
Aon plc market cap for the quarter ending 2026-02-12 was $67.38B, a 19.40% decline year-over-year.
Aon plc market cap for the quarter ending 2025-10-30 was $70.6B, a 8.52% decline year-over-year.
Aon plc market cap for fiscal 2026 was $80.88B.
Aon plc market cap for fiscal 2025 was $70.6B, a 8.52% decline from fiscal 2024.
Aon plc market cap for fiscal 2024 was $77.17B, a 20.56% increase from fiscal 2023.
Aon plc market cap for fiscal 2023 was $64.01B, a 9.61% increase from fiscal 2022.