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Side-by-side financial comparison of CoStar Group (CSGP) and Quanex Building Products CORP (NX). Click either name above to swap in a different company.

CoStar Group is the larger business by last-quarter revenue ($899.9M vs $495.3M, roughly 1.8× Quanex Building Products CORP). CoStar Group runs the higher net margin — 5.2% vs -55.7%, a 60.9% gap on every dollar of revenue. On growth, Quanex Building Products CORP posted the faster year-over-year revenue change (76.7% vs 26.9%). CoStar Group produced more free cash flow last quarter ($101.3M vs $46.2M). Over the past eight quarters, Quanex Building Products CORP's revenue compounded faster (29.5% 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.

Quanex Building Products Corporation is a leading manufacturer of engineered building components and materials. Its core offerings include insulating glass spacers, window and door systems, and cabinet furniture components, serving residential and commercial construction markets across North America and Europe, with a focus on energy-efficient, sustainable building solutions.

CSGP vs NX — Head-to-Head

Bigger by revenue
CSGP
CSGP
1.8× larger
CSGP
$899.9M
$495.3M
NX
Growing faster (revenue YoY)
NX
NX
+49.8% gap
NX
76.7%
26.9%
CSGP
Higher net margin
CSGP
CSGP
60.9% more per $
CSGP
5.2%
-55.7%
NX
More free cash flow
CSGP
CSGP
$55.1M more FCF
CSGP
$101.3M
$46.2M
NX
Faster 2-yr revenue CAGR
NX
NX
Annualised
NX
29.5%
17.1%
CSGP

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
CSGP
CSGP
NX
NX
Revenue
$899.9M
$495.3M
Net Profit
$46.5M
$-276.0M
Gross Margin
78.6%
27.9%
Operating Margin
5.5%
-54.7%
Net Margin
5.2%
-55.7%
Revenue YoY
26.9%
76.7%
Net Profit YoY
-22.2%
-1188.8%
EPS (diluted)
$0.12
$-6.04

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
NX
NX
Q4 25
$899.9M
Q3 25
$833.6M
$495.3M
Q2 25
$781.3M
$452.5M
Q1 25
$732.2M
$400.0M
Q4 24
$709.4M
$492.2M
Q3 24
$692.6M
$280.3M
Q2 24
$677.8M
$266.2M
Q1 24
$656.4M
$239.2M
Net Profit
CSGP
CSGP
NX
NX
Q4 25
$46.5M
Q3 25
$-30.9M
$-276.0M
Q2 25
$6.2M
$20.5M
Q1 25
$-14.8M
$-14.9M
Q4 24
$59.8M
$-13.9M
Q3 24
$53.0M
$25.4M
Q2 24
$19.2M
$15.4M
Q1 24
$6.7M
$6.2M
Gross Margin
CSGP
CSGP
NX
NX
Q4 25
78.6%
Q3 25
79.3%
27.9%
Q2 25
78.5%
29.0%
Q1 25
79.1%
23.1%
Q4 24
80.1%
Q3 24
79.7%
25.3%
Q2 24
80.0%
24.9%
Q1 24
78.5%
21.5%
Operating Margin
CSGP
CSGP
NX
NX
Q4 25
5.5%
Q3 25
-6.1%
-54.7%
Q2 25
-3.5%
9.0%
Q1 25
-5.8%
-1.7%
Q4 24
5.6%
0.6%
Q3 24
3.4%
8.4%
Q2 24
-2.4%
7.8%
Q1 24
-6.5%
3.3%
Net Margin
CSGP
CSGP
NX
NX
Q4 25
5.2%
Q3 25
-3.7%
-55.7%
Q2 25
0.8%
4.5%
Q1 25
-2.0%
-3.7%
Q4 24
8.4%
-2.8%
Q3 24
7.7%
9.0%
Q2 24
2.8%
5.8%
Q1 24
1.0%
2.6%
EPS (diluted)
CSGP
CSGP
NX
NX
Q4 25
$0.12
Q3 25
$-0.07
$-6.04
Q2 25
$0.01
$0.44
Q1 25
$-0.04
$-0.32
Q4 24
$0.14
$-0.52
Q3 24
$0.13
$0.77
Q2 24
$0.05
$0.46
Q1 24
$0.02
$0.19

Balance Sheet & Financial Strength

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

Metric
CSGP
CSGP
NX
NX
Cash + ST InvestmentsLiquidity on hand
$1.6B
$66.3M
Total DebtLower is stronger
$140.0M
$695.6M
Stockholders' EquityBook value
$8.3B
$717.4M
Total Assets
$10.5B
$2.0B
Debt / EquityLower = less leverage
0.02×
0.97×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSGP
CSGP
NX
NX
Q4 25
$1.6B
Q3 25
$1.9B
$66.3M
Q2 25
$3.6B
$62.6M
Q1 25
$3.7B
$50.0M
Q4 24
$4.7B
$97.7M
Q3 24
$94.0M
Q2 24
$56.1M
Q1 24
$44.4M
Total Debt
CSGP
CSGP
NX
NX
Q4 25
$140.0M
Q3 25
$1.0B
$695.6M
Q2 25
$1.0B
$746.4M
Q1 25
$1.0B
$725.2M
Q4 24
$1.0B
$737.2M
Q3 24
$1.0B
$51.4M
Q2 24
$1.0B
$51.5M
Q1 24
$1.0B
$61.6M
Stockholders' Equity
CSGP
CSGP
NX
NX
Q4 25
$8.3B
Q3 25
$8.6B
$717.4M
Q2 25
$8.6B
$1.0B
Q1 25
$8.6B
$972.1M
Q4 24
$7.6B
$1.0B
Q3 24
$7.5B
$594.1M
Q2 24
$7.4B
$566.1M
Q1 24
$7.3B
$555.0M
Total Assets
CSGP
CSGP
NX
NX
Q4 25
$10.5B
Q3 25
$10.8B
$2.0B
Q2 25
$10.5B
$2.3B
Q1 25
$10.4B
$2.2B
Q4 24
$9.3B
$2.3B
Q3 24
$9.1B
$872.5M
Q2 24
$9.1B
$837.2M
Q1 24
$9.0B
$813.4M
Debt / Equity
CSGP
CSGP
NX
NX
Q4 25
0.02×
Q3 25
0.12×
0.97×
Q2 25
0.12×
0.75×
Q1 25
0.12×
0.75×
Q4 24
0.13×
0.73×
Q3 24
0.13×
0.09×
Q2 24
0.14×
0.09×
Q1 24
0.14×
0.11×

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
NX
NX
Operating Cash FlowLast quarter
$162.1M
$60.7M
Free Cash FlowOCF − Capex
$101.3M
$46.2M
FCF MarginFCF / Revenue
11.3%
9.3%
Capex IntensityCapex / Revenue
6.8%
2.9%
Cash ConversionOCF / Net Profit
3.49×
TTM Free Cash FlowTrailing 4 quarters
$123.0M
$27.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSGP
CSGP
NX
NX
Q4 25
$162.1M
Q3 25
$68.2M
$60.7M
Q2 25
$146.5M
$28.5M
Q1 25
$53.2M
$-12.5M
Q4 24
$94.6M
$5.5M
Q3 24
$100.3M
$46.4M
Q2 24
$58.1M
$33.1M
Q1 24
$139.6M
$3.9M
Free Cash Flow
CSGP
CSGP
NX
NX
Q4 25
$101.3M
Q3 25
$-5.5M
$46.2M
Q2 25
$27.7M
$13.6M
Q1 25
$-500.0K
$-24.1M
Q4 24
$25.2M
$-8.2M
Q3 24
$40.2M
$40.1M
Q2 24
$-14.7M
$25.5M
Q1 24
$-237.1M
$-5.7M
FCF Margin
CSGP
CSGP
NX
NX
Q4 25
11.3%
Q3 25
-0.7%
9.3%
Q2 25
3.5%
3.0%
Q1 25
-0.1%
-6.0%
Q4 24
3.6%
-1.7%
Q3 24
5.8%
14.3%
Q2 24
-2.2%
9.6%
Q1 24
-36.1%
-2.4%
Capex Intensity
CSGP
CSGP
NX
NX
Q4 25
6.8%
Q3 25
8.8%
2.9%
Q2 25
15.2%
3.3%
Q1 25
7.3%
2.9%
Q4 24
9.8%
2.8%
Q3 24
8.7%
2.2%
Q2 24
10.7%
2.9%
Q1 24
57.4%
4.0%
Cash Conversion
CSGP
CSGP
NX
NX
Q4 25
3.49×
Q3 25
Q2 25
23.63×
1.39×
Q1 25
Q4 24
1.58×
Q3 24
1.89×
1.83×
Q2 24
3.03×
2.15×
Q1 24
20.84×
0.62×

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%

NX
NX

Window And Door Hardware$150.3M30%
Screens$76.8M16%
Window Profiles$68.2M14%
Spacers$54.7M11%
Wood Solutions$53.4M11%
Seals And Gaskets$29.9M6%
Access Solutions$27.4M6%
Mixing Solution$21.5M4%
Solar$5.3M1%
Product Type Other$3.3M1%

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