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

CoStar Group is the larger business by last-quarter revenue ($899.9M vs $497.6M, roughly 1.8× NorthWestern Energy Group, Inc.). NorthWestern Energy Group, Inc. runs the higher net margin — 12.8% vs 5.2%, a 7.6% gap on every dollar of revenue. On growth, CoStar Group posted the faster year-over-year revenue change (26.9% vs 6.6%). Over the past eight quarters, NorthWestern Energy Group, Inc.'s revenue compounded faster (24.7% CAGR vs 17.1%).

CoStar Group, Inc. is an American provider of information, analytics, and marketing services to the commercial property industry in North America and Europe. Founded in 1987 by Andrew C. Florance and based in Arlington, Virginia, the company operates the CoStar online database and news website and several online marketplaces, including Apartments.com and Homes.com.

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.

CSGP vs NWE — Head-to-Head

Bigger by revenue
CSGP
CSGP
1.8× larger
CSGP
$899.9M
$497.6M
NWE
Growing faster (revenue YoY)
CSGP
CSGP
+20.2% gap
CSGP
26.9%
6.6%
NWE
Higher net margin
NWE
NWE
7.6% more per $
NWE
12.8%
5.2%
CSGP
Faster 2-yr revenue CAGR
NWE
NWE
Annualised
NWE
24.7%
17.1%
CSGP

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CSGP
CSGP
NWE
NWE
Revenue
$899.9M
$497.6M
Net Profit
$46.5M
$63.5M
Gross Margin
78.6%
Operating Margin
5.5%
22.9%
Net Margin
5.2%
12.8%
Revenue YoY
26.9%
6.6%
Net Profit YoY
-22.2%
EPS (diluted)
$0.12

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
CSGP
CSGP
NWE
NWE
Q1 26
$497.6M
Q4 25
$899.9M
$414.3M
Q3 25
$833.6M
$387.0M
Q2 25
$781.3M
$342.7M
Q1 25
$732.2M
$466.6M
Q4 24
$709.4M
$373.5M
Q3 24
$692.6M
$345.2M
Q2 24
$677.8M
$319.9M
Net Profit
CSGP
CSGP
NWE
NWE
Q1 26
$63.5M
Q4 25
$46.5M
$44.7M
Q3 25
$-30.9M
$38.2M
Q2 25
$6.2M
$21.2M
Q1 25
$-14.8M
$76.9M
Q4 24
$59.8M
$80.6M
Q3 24
$53.0M
$46.8M
Q2 24
$19.2M
$31.7M
Gross Margin
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
78.6%
Q3 25
79.3%
Q2 25
78.5%
Q1 25
79.1%
Q4 24
80.1%
Q3 24
79.7%
Q2 24
80.0%
Operating Margin
CSGP
CSGP
NWE
NWE
Q1 26
22.9%
Q4 25
5.5%
14.5%
Q3 25
-6.1%
20.7%
Q2 25
-3.5%
17.7%
Q1 25
-5.8%
26.7%
Q4 24
5.6%
24.6%
Q3 24
3.4%
19.7%
Q2 24
-2.4%
19.3%
Net Margin
CSGP
CSGP
NWE
NWE
Q1 26
12.8%
Q4 25
5.2%
10.8%
Q3 25
-3.7%
9.9%
Q2 25
0.8%
6.2%
Q1 25
-2.0%
16.5%
Q4 24
8.4%
21.6%
Q3 24
7.7%
13.6%
Q2 24
2.8%
9.9%
EPS (diluted)
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$0.12
$0.72
Q3 25
$-0.07
$0.62
Q2 25
$0.01
$0.35
Q1 25
$-0.04
$1.25
Q4 24
$0.14
$1.31
Q3 24
$0.13
$0.76
Q2 24
$0.05
$0.52

Balance Sheet & Financial Strength

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

Metric
CSGP
CSGP
NWE
NWE
Cash + ST InvestmentsLiquidity on hand
$1.6B
Total DebtLower is stronger
$140.0M
Stockholders' EquityBook value
$8.3B
Total Assets
$10.5B
Debt / EquityLower = less leverage
0.02×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$1.6B
$8.8M
Q3 25
$1.9B
$6.2M
Q2 25
$3.6B
$2.9M
Q1 25
$3.7B
$56.0M
Q4 24
$4.7B
$4.3M
Q3 24
$2.5M
Q2 24
$6.4M
Total Debt
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$140.0M
$3.3B
Q3 25
$1.0B
Q2 25
$1.0B
Q1 25
$1.0B
Q4 24
$1.0B
$3.0B
Q3 24
$1.0B
Q2 24
$1.0B
Stockholders' Equity
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$8.3B
$2.9B
Q3 25
$8.6B
$2.9B
Q2 25
$8.6B
$2.9B
Q1 25
$8.6B
$2.9B
Q4 24
$7.6B
$2.9B
Q3 24
$7.5B
$2.8B
Q2 24
$7.4B
$2.8B
Total Assets
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$10.5B
$8.5B
Q3 25
$10.8B
$8.3B
Q2 25
$10.5B
$8.1B
Q1 25
$10.4B
$8.1B
Q4 24
$9.3B
$8.0B
Q3 24
$9.1B
$7.9B
Q2 24
$9.1B
$7.7B
Debt / Equity
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
0.02×
1.14×
Q3 25
0.12×
Q2 25
0.12×
Q1 25
0.12×
Q4 24
0.13×
1.05×
Q3 24
0.13×
Q2 24
0.14×

Cash Flow & Capital Efficiency

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

Metric
CSGP
CSGP
NWE
NWE
Operating Cash FlowLast quarter
$162.1M
Free Cash FlowOCF − Capex
$101.3M
FCF MarginFCF / Revenue
11.3%
Capex IntensityCapex / Revenue
6.8%
Cash ConversionOCF / Net Profit
3.49×
TTM Free Cash FlowTrailing 4 quarters
$123.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$162.1M
$56.2M
Q3 25
$68.2M
$126.7M
Q2 25
$146.5M
$58.2M
Q1 25
$53.2M
$153.4M
Q4 24
$94.6M
$62.8M
Q3 24
$100.3M
$120.0M
Q2 24
$58.1M
$62.3M
Free Cash Flow
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
$101.3M
$-93.7M
Q3 25
$-5.5M
$-26.9M
Q2 25
$27.7M
$-70.6M
Q1 25
$-500.0K
$61.3M
Q4 24
$25.2M
$-85.9M
Q3 24
$40.2M
$-33.2M
Q2 24
$-14.7M
$-76.3M
FCF Margin
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
11.3%
-22.6%
Q3 25
-0.7%
-6.9%
Q2 25
3.5%
-20.6%
Q1 25
-0.1%
13.1%
Q4 24
3.6%
-23.0%
Q3 24
5.8%
-9.6%
Q2 24
-2.2%
-23.9%
Capex Intensity
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
6.8%
36.2%
Q3 25
8.8%
39.7%
Q2 25
15.2%
37.6%
Q1 25
7.3%
19.7%
Q4 24
9.8%
39.8%
Q3 24
8.7%
44.4%
Q2 24
10.7%
43.3%
Cash Conversion
CSGP
CSGP
NWE
NWE
Q1 26
Q4 25
3.49×
1.26×
Q3 25
3.31×
Q2 25
23.63×
2.74×
Q1 25
1.99×
Q4 24
1.58×
0.78×
Q3 24
1.89×
2.56×
Q2 24
3.03×
1.97×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSGP
CSGP

Co Star$503.8M56%
Other$283.0M31%
Loop Net$94.7M11%

NWE
NWE

Electric$362.1M73%
Gas$135.5M27%

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