Aon (AON) Market Capitalization (2009 - 2026)

Aon has reported Market Capitalization for 18 years, with the latest figure at $70.4 billion in Q2 2026.

• On a quarterly basis, Market Capitalization fell 8.54% year-over-year to $70.4 billion in Q2 2026; TTM through Jun 2026 was $70.4 billion, a 8.54% decrease from a year earlier, with the FY2025 full-year figure at $75.6 billion, down 2.54% from the prior year.
• Market Capitalization was $70.4 billion for Q2 2026 at Aon, up from $68.9 billion in the prior quarter.
• The five-year high for Market Capitalization was $86.2 billion in Q1 2025, with the low at $55.4 billion in Q3 2022.
• Average Market Capitalization over 5 years is $69.1 billion, with a median of $69.6 billion recorded in 2022.
• The sharpest annual moves came in 2024 and 2026: Market Capitalization jumped 34.43% in 2024, then slipped 20.01% in 2026.
• Over 5 years, Market Capitalization stood at $61.6 billion in 2022, then dropped by 6.27% to $57.7 billion in 2023, then soared by 34.43% to $77.6 billion in 2024, then decreased by 2.54% to $75.6 billion in 2025, then retreated by 6.94% to $70.4 billion in 2026.
• The last three Market Capitalization figures came in at $70.4 billion (Q2 2026), $68.9 billion (Q1 2026), and $75.6 billion (Q4 2025), per Business Quant data.