Ameren Illinois Company Profit Margin

Ameren Illinois Company (AILLM) currently reports a profit margin of 13.46% as of September 2026. That compares with 21.28% in the prior-year period — down 36.7% year over year. That is below the sector sector average of 13.78%. Use the charts on this page to explore Ameren Illinois Company's profit margin history and peer comparisons.

Ameren Illinois Company's profit margin decreased from 21.28% to 13.46% — a 36.7% year-over-year decrease (period ending September 2026). Watching multi-year history on the chart below helps separate one-off swings from a lasting trend.

Ameren Illinois Company's profit margin of 13.46% is lower than the its sector sector average of 13.78%. That is roughly 2.3% below the sector mean. A reading lower peers can reflect different growth expectations, capital structure, or profitability — so it is worth checking the peer comparison chart before drawing conclusions.

There is no universal 'good' profit margin, but Ameren Illinois Company's current 13.46% should be judged against industry norms (sector average: 13.78%) and against AILLM's own history. Strong, stable readings often indicate durable competitive advantage; volatile or declining ones deserve a closer look at margins and capital efficiency.

Start with the current profit margin of 13.46%, then check the historical chart for trend and the peer comparison chart for relative positioning. The sector average is 13.78%. From there, open related valuation or income-statement pages for Ameren Illinois Company, and consider following AILLM for alerts when major investors trade the stock.