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Ameren vs WEC Energy Group: AEE and WEC compared

Ameren is the larger company: $2.9B of revenue in its latest quarter (Q3 2026) against $2.3B for WEC Energy Group (Q3 2026). WEC Energy Group is growing faster (+9% against +7% a year earlier). Ameren is more profitable, with an operating margin of 31.2% against 24.6%.

Ameren vs WEC Energy Group, latest quarterAmeren vs WEC Energy Group, latest quarterAmeren (AEE)WEC Energy Group (WEC)Revenue$2.9B$2.3BRevenue growth, Y/Y+7%+9%Operating margin31.2%24.6%Net margin23.5%17.0%

Where the money goes: AEE and WEC

Ameren (AEE) · Q3 2026

Ameren, Q3 2026: revenue $2.9B (+7% year over year), operating margin 31.2%, net earnings $677M, operating cash flow $1.0B. The chart follows the revenue to costs, profit and cash.

WEC Energy Group (WEC) · Q3 2026

WEC Energy Group, Q3 2026: revenue $2.3B (+9% year over year), operating margin 24.6%, net earnings $390M, operating cash flow $1.2B. The chart follows the revenue to costs, profit and cash.

Ameren revenue by segment, Q3 2026Ameren revenue by segment, Q3 2026Electric$2.7BNatural gas$160M
Ameren (AEE)WEC Energy Group (WEC)
Latest quarterQ3 2026Q3 2026
Revenue$2.9B$2.3B
Revenue growth, Y/Y+7%+9%
Operating margin31.2%24.6%
Net earnings$677M$390M
Net margin23.5%17.0%
Operating cash flow$1.0B$1.2B
Market value$31.5B$38.3B
P/E19.6×21.1×
Analysts’ mean target$116.28$118.50

Where the revenue comes from

Ameren

Questions

Which is bigger, Ameren or WEC Energy Group?

Ameren is the larger company: $2.9B of revenue in its latest quarter (Q3 2026) against $2.3B for WEC Energy Group (Q3 2026).

Is Ameren or WEC Energy Group growing faster?

WEC Energy Group is growing faster (+9% against +7% a year earlier).

Which is more profitable, Ameren or WEC Energy Group?

Ameren is more profitable, with an operating margin of 31.2% against 24.6%.

More: Ameren earnings · how Ameren makes money · WEC Energy Group earnings · how WEC Energy Group makes money

From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Nov 6, 2026; 10-Q filed Oct 30, 2026). Fiscal quarters can end on different dates. Not investment advice.