Ameren Illinois Company Profit Margin

As of the most recent data (June 2026), AILLO shows a profit margin of 13.27%. That compares with 17.98% in the prior-year period — down 26.2% year over year. That is below the sector sector average of 21.63%. Scroll down for historical charts and peer comparison views.

Compared with the year-ago period, AILLO's profit margin is now 13.27% (was 17.98%) — a 26.2% year-over-year decrease. Pairing that YoY change with peer averages gives a clearer picture of whether Ameren Illinois Company is outperforming or lagging.

The its sector sector average profit margin is about 21.63%. Ameren Illinois Company is at 13.27%, which is lower that average. That is roughly 38.7% below the sector mean. Use the comparison chart on this page to see how AILLO stacks up against individual peers as well.

That compares with 17.98% in the prior-year period — down 26.2% year over year. Improvement over multiple periods is generally more meaningful than a single strong quarter. Compare Ameren Illinois Company with peers to see if the move is company-specific or sector-wide.

Besides this profit margin page, Stockcircle has Ameren Illinois Company's full stock overview, other financial metrics, insider and congress trade tabs, and tools to follow the stock. Together they help you connect profit margin (currently 13.27%) with ownership activity and broader fundamentals.