Growth Metrics

Ameren Illinois (AILLO) Operating Margin (2016 - 2025)

Historic Operating Margin for Ameren Illinois (AILLO) over the last 17 years, with Q3 2025 value amounting to 30.57%.

  • Ameren Illinois' Operating Margin rose 36000.0% to 30.57% in Q3 2025 from the same period last year, while for Sep 2025 it was 20.81%, marking a year-over-year decrease of 66600.0%. This contributed to the annual value of 19.89% for FY2024, which is 8900.0% down from last year.
  • Latest data reveals that Ameren Illinois reported Operating Margin of 30.57% as of Q3 2025, which was up 36000.0% from 18.51% recorded in Q2 2025.
  • Over the past 5 years, Ameren Illinois' Operating Margin peaked at 342.86% during Q4 2023, and registered a low of 10.2% during Q4 2024.
  • For the 5-year period, Ameren Illinois' Operating Margin averaged around 37.56%, with its median value being 20.18% (2021).
  • As far as peak fluctuations go, Ameren Illinois' Operating Margin surged by 3293700bps in 2023, and later plummeted by -3326600bps in 2024.
  • Over the past 5 years, Ameren Illinois' Operating Margin (Quarter) stood at 12.75% in 2021, then increased by 6bps to 13.49% in 2022, then skyrocketed by 2442bps to 342.86% in 2023, then crashed by -97bps to 10.2% in 2024, then soared by 200bps to 30.57% in 2025.
  • Its Operating Margin stands at 30.57% for Q3 2025, versus 18.51% for Q2 2025 and 20.51% for Q1 2025.