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Side-by-side financial comparison of AES Corporation (AES) and NorthWestern Energy Group, Inc. (NWE). Click either name above to swap in a different company.

AES Corporation is the larger business by last-quarter revenue ($3.1B vs $414.3M, roughly 7.5× NorthWestern Energy Group, Inc.). NorthWestern Energy Group, Inc. runs the higher net margin — 10.8% vs 10.3%, a 0.5% gap on every dollar of revenue. On growth, NorthWestern Energy Group, Inc. posted the faster year-over-year revenue change (10.9% vs 4.7%). AES Corporation produced more free cash flow last quarter ($-47.0M vs $-93.7M). Over the past eight quarters, AES Corporation's revenue compounded faster (0.3% CAGR vs -6.6%).

The AES Corporation is an American utility and power generation company. It owns and operates power plants, which it uses to generate and sell electricity to end users and intermediaries like utilities and industrial facilities. AES, headquartered in Arlington, Virginia, is one of the world's leading power companies, generating and distributing electric power in 15 countries and employing 10,500 people worldwide. AES Corporation is a global Fortune 500 power company.

NorthWestern Energy Group, Inc. is a utility company that serves South Dakota, Nebraska, and Montana that is based in Sioux Falls. As of 2019, the company serves approximately 718,000 customers. The company's corporate headquarters are located in Sioux Falls while the headquarters for the South Dakota operations are in Huron, South Dakota.

AES vs NWE — Head-to-Head

Bigger by revenue
AES
AES
7.5× larger
AES
$3.1B
$414.3M
NWE
Growing faster (revenue YoY)
NWE
NWE
+6.2% gap
NWE
10.9%
4.7%
AES
Higher net margin
NWE
NWE
0.5% more per $
NWE
10.8%
10.3%
AES
More free cash flow
AES
AES
$46.7M more FCF
AES
$-47.0M
$-93.7M
NWE
Faster 2-yr revenue CAGR
AES
AES
Annualised
AES
0.3%
-6.6%
NWE

Income Statement — Q4 2025 vs Q4 2025

Metric
AES
AES
NWE
NWE
Revenue
$3.1B
$414.3M
Net Profit
$320.0M
$44.7M
Gross Margin
18.8%
Operating Margin
-8.7%
14.5%
Net Margin
10.3%
10.8%
Revenue YoY
4.7%
10.9%
Net Profit YoY
-42.9%
-44.5%
EPS (diluted)
$0.45
$0.72

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AES
AES
NWE
NWE
Q4 25
$3.1B
$414.3M
Q3 25
$3.4B
$387.0M
Q2 25
$2.9B
$342.7M
Q1 25
$2.9B
$466.6M
Q4 24
$3.0B
$373.5M
Q3 24
$3.3B
$345.2M
Q2 24
$2.9B
$319.9M
Q1 24
$3.1B
$475.3M
Net Profit
AES
AES
NWE
NWE
Q4 25
$320.0M
$44.7M
Q3 25
$639.0M
$38.2M
Q2 25
$-95.0M
$21.2M
Q1 25
$46.0M
$76.9M
Q4 24
$560.0M
$80.6M
Q3 24
$502.0M
$46.8M
Q2 24
$185.0M
$31.7M
Q1 24
$432.0M
$65.1M
Gross Margin
AES
AES
NWE
NWE
Q4 25
18.8%
Q3 25
21.9%
Q2 25
15.9%
Q1 25
15.1%
Q4 24
14.2%
Q3 24
22.0%
Q2 24
18.8%
Q1 24
20.1%
Operating Margin
AES
AES
NWE
NWE
Q4 25
-8.7%
14.5%
Q3 25
9.8%
20.7%
Q2 25
1.4%
17.7%
Q1 25
-0.8%
26.7%
Q4 24
12.3%
24.6%
Q3 24
10.0%
19.7%
Q2 24
-2.6%
19.3%
Q1 24
9.0%
21.5%
Net Margin
AES
AES
NWE
NWE
Q4 25
10.3%
10.8%
Q3 25
19.1%
9.9%
Q2 25
-3.3%
6.2%
Q1 25
1.6%
16.5%
Q4 24
18.9%
21.6%
Q3 24
15.3%
13.6%
Q2 24
6.3%
9.9%
Q1 24
14.0%
13.7%
EPS (diluted)
AES
AES
NWE
NWE
Q4 25
$0.45
$0.72
Q3 25
$0.89
$0.62
Q2 25
$-0.15
$0.35
Q1 25
$0.07
$1.25
Q4 24
$0.78
$1.31
Q3 24
$0.71
$0.76
Q2 24
$0.27
$0.52
Q1 24
$0.60
$1.06

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AES
AES
NWE
NWE
Cash + ST InvestmentsLiquidity on hand
$1.6B
$8.8M
Total DebtLower is stronger
$3.3B
Stockholders' EquityBook value
$4.1B
$2.9B
Total Assets
$51.8B
$8.5B
Debt / EquityLower = less leverage
1.14×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AES
AES
NWE
NWE
Q4 25
$1.6B
$8.8M
Q3 25
$1.8B
$6.2M
Q2 25
$1.4B
$2.9M
Q1 25
$1.8B
$56.0M
Q4 24
$1.6B
$4.3M
Q3 24
$2.0B
$2.5M
Q2 24
$1.8B
$6.4M
Q1 24
$2.4B
$4.2M
Total Debt
AES
AES
NWE
NWE
Q4 25
$3.3B
Q3 25
Q2 25
Q1 25
Q4 24
$3.0B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AES
AES
NWE
NWE
Q4 25
$4.1B
$2.9B
Q3 25
$3.9B
$2.9B
Q2 25
$3.4B
$2.9B
Q1 25
$3.5B
$2.9B
Q4 24
$3.6B
$2.9B
Q3 24
$3.3B
$2.8B
Q2 24
$3.1B
$2.8B
Q1 24
$2.9B
$2.8B
Total Assets
AES
AES
NWE
NWE
Q4 25
$51.8B
$8.5B
Q3 25
$50.8B
$8.3B
Q2 25
$48.5B
$8.1B
Q1 25
$48.6B
$8.1B
Q4 24
$47.4B
$8.0B
Q3 24
$50.1B
$7.9B
Q2 24
$47.7B
$7.7B
Q1 24
$47.0B
$7.6B
Debt / Equity
AES
AES
NWE
NWE
Q4 25
1.14×
Q3 25
Q2 25
Q1 25
Q4 24
1.05×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AES
AES
NWE
NWE
Operating Cash FlowLast quarter
$1.5B
$56.2M
Free Cash FlowOCF − Capex
$-47.0M
$-93.7M
FCF MarginFCF / Revenue
-1.5%
-22.6%
Capex IntensityCapex / Revenue
49.5%
36.2%
Cash ConversionOCF / Net Profit
4.65×
1.26×
TTM Free Cash FlowTrailing 4 quarters
$-1.6B
$-130.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AES
AES
NWE
NWE
Q4 25
$1.5B
$56.2M
Q3 25
$1.3B
$126.7M
Q2 25
$976.0M
$58.2M
Q1 25
$545.0M
$153.4M
Q4 24
$1.1B
$62.8M
Q3 24
$985.0M
$120.0M
Q2 24
$392.0M
$62.3M
Q1 24
$287.0M
$161.7M
Free Cash Flow
AES
AES
NWE
NWE
Q4 25
$-47.0M
$-93.7M
Q3 25
$-511.0M
$-26.9M
Q2 25
$-356.0M
$-70.6M
Q1 25
$-709.0M
$61.3M
Q4 24
$-639.0M
$-85.9M
Q3 24
$-847.0M
$-33.2M
Q2 24
$-1.3B
$-76.3M
Q1 24
$-1.9B
$52.9M
FCF Margin
AES
AES
NWE
NWE
Q4 25
-1.5%
-22.6%
Q3 25
-15.2%
-6.9%
Q2 25
-12.5%
-20.6%
Q1 25
-24.2%
13.1%
Q4 24
-21.6%
-23.0%
Q3 24
-25.8%
-9.6%
Q2 24
-43.9%
-23.9%
Q1 24
-60.3%
11.1%
Capex Intensity
AES
AES
NWE
NWE
Q4 25
49.5%
36.2%
Q3 25
54.0%
39.7%
Q2 25
46.7%
37.6%
Q1 25
42.9%
19.7%
Q4 24
58.3%
39.8%
Q3 24
55.7%
44.4%
Q2 24
57.3%
43.3%
Q1 24
69.6%
22.9%
Cash Conversion
AES
AES
NWE
NWE
Q4 25
4.65×
1.26×
Q3 25
2.03×
3.31×
Q2 25
2.74×
Q1 25
11.85×
1.99×
Q4 24
1.94×
0.78×
Q3 24
1.96×
2.56×
Q2 24
2.12×
1.97×
Q1 24
0.66×
2.48×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AES
AES

Electric Distribution$1.0B33%
Regulated Revenue$1.0B33%
Renewables$786.0M25%
AES Andes$225.0M7%
Corporate Other And Other$38.0M1%
Other Expense$10.0M0%

NWE
NWE

Electricity Us Regulated$315.3M76%
Other Tariff Based Revenue$50.5M12%
Transmission Customers$28.4M7%
Industrial Customers$11.0M3%
Other Customers$6.1M1%

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