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Ameren AEE Operating and maintenance

Operating and maintenance at other companies

Spire logo
SpireSR
$153.6M+20.5%
Duke Energy logo
Duke EnergyDUK
$1.66B+25.4%

Segments

By segment

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Union Electric Company$264M+5.6%
Ameren Illinois Electric Distribution$160M-3.6%
Ameren Illinois Natural Gas$57M+3.6%
Ameren Transmission$19M0.0%
Ameren Illinois Transmission$15M0.0%

Other financials

Income statement

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Revenue$2.2B+3.8%
Gross profit$1.8B+19.9%
Operating income$532.0M+23.7%
Net income$358.0M+23.4%
EPS (diluted)$1.28+19.6%

Balance sheet

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Cash & equivalents$485.0M+29.0%
Total debt$20.2B+2.9%
Total equity$13.6B+10.9%
Total assets$49.8B+9.2%

Cash flow

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Operating cash flow$421.0M-2.3%
CapEx$1.6B+47.9%
Free cash flow-$1.2B-82.1%

Valuation

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Market cap$31.28B+23.1%
Enterprise value$50.98B+13.5%
P/E20.5×-0.2×
P/S3.5×+0.5×

Profitability

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Gross margin82.2%+3.0pp
Operating margin24%+4.0pp
Net margin17.2%+1.9pp
FCF margin-18.1%-3.0pp

Returns & leverage

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Return on equity11.9%+1.6pp
Debt / equity1.5×-0.1×
Current ratio0.6×-0.2×

Where this comes from

Reported directly by Ameren in its filing.

Tagged under the XBRL concept us-gaap:UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses.

The official record: Ameren’s 10-Q, filed May 8, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Ameren's operating and maintenance?
Ameren (AEE) reported operating and maintenance of $491M in Q1 2026.
How has Ameren's operating and maintenance changed year-over-year?
Ameren's operating and maintenance increased by 1.2% year-over-year, from $485M to $491M.
What is the long-term trend for Ameren's operating and maintenance?
Over 4 years (2021 to 2025), Ameren's operating and maintenance has grown at a 2.7% compound annual growth rate (CAGR), from $1.77B to $1.97B.
What does operating and maintenance mean?
Covers the routine costs associated with operating and maintaining utility infrastructure, including labor, materials, and administrative overhead. It excludes fuel and depreciation, focusing on the ongoing upkeep of the grid and generation assets.