Growth Metrics

Ameren Illinois (AILLO) Invested Capital (2016 - 2025)

Historic Invested Capital for Ameren Illinois (AILLO) over the last 17 years, with Q3 2025 value amounting to $13.8 billion.

  • Ameren Illinois' Invested Capital rose 230.35% to $13.8 billion in Q3 2025 from the same period last year, while for Sep 2025 it was $13.8 billion, marking a year-over-year increase of 230.35%. This contributed to the annual value of $30.0 billion for FY2024, which is 890.7% up from last year.
  • As of Q3 2025, Ameren Illinois' Invested Capital stood at $13.8 billion, which was up 230.35% from $13.6 billion recorded in Q2 2025.
  • Over the past 5 years, Ameren Illinois' Invested Capital peaked at $30.0 billion during Q4 2024, and registered a low of $9.9 billion during Q2 2021.
  • For the 5-year period, Ameren Illinois' Invested Capital averaged around $15.0 billion, with its median value being $12.5 billion (2023).
  • Per our database at Business Quant, Ameren Illinois' Invested Capital surged by 1534.27% in 2021 and then soared by 230.35% in 2025.
  • Ameren Illinois' Invested Capital (Quarter) stood at $23.0 billion in 2021, then rose by 7.71% to $24.8 billion in 2022, then rose by 11.3% to $27.6 billion in 2023, then grew by 8.91% to $30.0 billion in 2024, then plummeted by 54.02% to $13.8 billion in 2025.
  • Its Invested Capital was $13.8 billion in Q3 2025, compared to $13.6 billion in Q2 2025 and $13.6 billion in Q1 2025.