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Side-by-side financial comparison of CoStar Group (CSGP) and Paychex (PAYX). Click either name above to swap in a different company.

Paychex is the larger business by last-quarter revenue ($1.5B vs $899.9M, roughly 1.7× CoStar Group). Paychex runs the higher net margin — 26.3% vs 5.2%, a 21.1% gap on every dollar of revenue. On growth, CoStar Group posted the faster year-over-year revenue change (26.9% vs 17.4%). Paychex produced more free cash flow last quarter ($382.8M vs $101.3M). Over the past eight quarters, CoStar Group's revenue compounded faster (17.1% CAGR vs 3.8%).

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.

Paychex, Inc. is an American company that provides human resources, payroll, and employee benefits outsourcing services for small- to medium-sized businesses. Founded in 1971 and headquartered in Rochester, New York, the company has more than 100 offices serving approximately 800,000 payroll clients in the U.S. and Europe. Paychex is ranked 681st on the Fortune 500 list of largest corporations by revenue.

CSGP vs PAYX — Head-to-Head

Bigger by revenue
PAYX
PAYX
1.7× larger
PAYX
$1.5B
$899.9M
CSGP
Growing faster (revenue YoY)
CSGP
CSGP
+9.5% gap
CSGP
26.9%
17.4%
PAYX
Higher net margin
PAYX
PAYX
21.1% more per $
PAYX
26.3%
5.2%
CSGP
More free cash flow
PAYX
PAYX
$281.5M more FCF
PAYX
$382.8M
$101.3M
CSGP
Faster 2-yr revenue CAGR
CSGP
CSGP
Annualised
CSGP
17.1%
3.8%
PAYX

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
CSGP
CSGP
PAYX
PAYX
Revenue
$899.9M
$1.5B
Net Profit
$46.5M
$395.4M
Gross Margin
78.6%
72.6%
Operating Margin
5.5%
38.0%
Net Margin
5.2%
26.3%
Revenue YoY
26.9%
17.4%
Net Profit YoY
-22.2%
-4.4%
EPS (diluted)
$0.12
$1.10

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
PAYX
PAYX
Q4 25
$899.9M
$1.5B
Q3 25
$833.6M
$1.5B
Q2 25
$781.3M
$1.4B
Q1 25
$732.2M
$1.5B
Q4 24
$709.4M
$1.3B
Q3 24
$692.6M
$1.3B
Q2 24
$677.8M
$1.3B
Q1 24
$656.4M
$1.4B
Net Profit
CSGP
CSGP
PAYX
PAYX
Q4 25
$46.5M
$395.4M
Q3 25
$-30.9M
$383.8M
Q2 25
$6.2M
$297.2M
Q1 25
$-14.8M
$519.3M
Q4 24
$59.8M
$413.4M
Q3 24
$53.0M
$427.4M
Q2 24
$19.2M
$379.9M
Q1 24
$6.7M
$498.6M
Gross Margin
CSGP
CSGP
PAYX
PAYX
Q4 25
78.6%
72.6%
Q3 25
79.3%
72.3%
Q2 25
78.5%
71.5%
Q1 25
79.1%
73.6%
Q4 24
80.1%
70.4%
Q3 24
79.7%
70.3%
Q2 24
80.0%
70.1%
Q1 24
78.5%
72.8%
Operating Margin
CSGP
CSGP
PAYX
PAYX
Q4 25
5.5%
38.0%
Q3 25
-6.1%
36.3%
Q2 25
-3.5%
31.2%
Q1 25
-5.8%
47.2%
Q4 24
5.6%
42.0%
Q3 24
3.4%
42.7%
Q2 24
-2.4%
38.3%
Q1 24
-6.5%
46.6%
Net Margin
CSGP
CSGP
PAYX
PAYX
Q4 25
5.2%
26.3%
Q3 25
-3.7%
25.7%
Q2 25
0.8%
21.5%
Q1 25
-2.0%
35.4%
Q4 24
8.4%
32.3%
Q3 24
7.7%
33.4%
Q2 24
2.8%
30.2%
Q1 24
1.0%
35.7%
EPS (diluted)
CSGP
CSGP
PAYX
PAYX
Q4 25
$0.12
$1.10
Q3 25
$-0.07
$1.06
Q2 25
$0.01
$0.83
Q1 25
$-0.04
$1.43
Q4 24
$0.14
$1.14
Q3 24
$0.13
$1.18
Q2 24
$0.05
$1.05
Q1 24
$0.02
$1.38

Balance Sheet & Financial Strength

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

Metric
CSGP
CSGP
PAYX
PAYX
Cash + ST InvestmentsLiquidity on hand
$1.6B
$1.5B
Total DebtLower is stronger
$140.0M
$5.0B
Stockholders' EquityBook value
$8.3B
$3.9B
Total Assets
$10.5B
$16.5B
Debt / EquityLower = less leverage
0.02×
1.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSGP
CSGP
PAYX
PAYX
Q4 25
$1.6B
$1.5B
Q3 25
$1.9B
$1.7B
Q2 25
$3.6B
$1.7B
Q1 25
$3.7B
$1.6B
Q4 24
$4.7B
$1.2B
Q3 24
$1.5B
Q2 24
$1.5B
Q1 24
$1.7B
Total Debt
CSGP
CSGP
PAYX
PAYX
Q4 25
$140.0M
$5.0B
Q3 25
$1.0B
$5.0B
Q2 25
$1.0B
$4.9B
Q1 25
$1.0B
Q4 24
$1.0B
Q3 24
$1.0B
Q2 24
$1.0B
$798.6M
Q1 24
$1.0B
Stockholders' Equity
CSGP
CSGP
PAYX
PAYX
Q4 25
$8.3B
$3.9B
Q3 25
$8.6B
$4.0B
Q2 25
$8.6B
$4.1B
Q1 25
$8.6B
$4.1B
Q4 24
$7.6B
$3.9B
Q3 24
$7.5B
$3.9B
Q2 24
$7.4B
$3.8B
Q1 24
$7.3B
$3.7B
Total Assets
CSGP
CSGP
PAYX
PAYX
Q4 25
$10.5B
$16.5B
Q3 25
$10.8B
$16.7B
Q2 25
$10.5B
$16.6B
Q1 25
$10.4B
$11.2B
Q4 24
$9.3B
$10.6B
Q3 24
$9.1B
$10.5B
Q2 24
$9.1B
$10.4B
Q1 24
$9.0B
$13.0B
Debt / Equity
CSGP
CSGP
PAYX
PAYX
Q4 25
0.02×
1.28×
Q3 25
0.12×
1.25×
Q2 25
0.12×
1.20×
Q1 25
0.12×
Q4 24
0.13×
Q3 24
0.13×
Q2 24
0.14×
0.21×
Q1 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
PAYX
PAYX
Operating Cash FlowLast quarter
$162.1M
$444.9M
Free Cash FlowOCF − Capex
$101.3M
$382.8M
FCF MarginFCF / Revenue
11.3%
25.5%
Capex IntensityCapex / Revenue
6.8%
4.1%
Cash ConversionOCF / Net Profit
3.49×
1.13×
TTM Free Cash FlowTrailing 4 quarters
$123.0M
$2.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSGP
CSGP
PAYX
PAYX
Q4 25
$162.1M
$444.9M
Q3 25
$68.2M
$718.4M
Q2 25
$146.5M
$343.8M
Q1 25
$53.2M
$716.0M
Q4 24
$94.6M
$295.0M
Q3 24
$100.3M
$546.1M
Q2 24
$58.1M
$221.7M
Q1 24
$139.6M
$671.7M
Free Cash Flow
CSGP
CSGP
PAYX
PAYX
Q4 25
$101.3M
$382.8M
Q3 25
$-5.5M
$662.5M
Q2 25
$27.7M
$283.3M
Q1 25
$-500.0K
$667.3M
Q4 24
$25.2M
$248.0M
Q3 24
$40.2M
$510.5M
Q2 24
$-14.7M
$180.4M
Q1 24
$-237.1M
$631.0M
FCF Margin
CSGP
CSGP
PAYX
PAYX
Q4 25
11.3%
25.5%
Q3 25
-0.7%
44.4%
Q2 25
3.5%
20.5%
Q1 25
-0.1%
45.5%
Q4 24
3.6%
19.4%
Q3 24
5.8%
39.9%
Q2 24
-2.2%
14.4%
Q1 24
-36.1%
45.2%
Capex Intensity
CSGP
CSGP
PAYX
PAYX
Q4 25
6.8%
4.1%
Q3 25
8.8%
3.7%
Q2 25
15.2%
4.4%
Q1 25
7.3%
3.3%
Q4 24
9.8%
3.7%
Q3 24
8.7%
2.8%
Q2 24
10.7%
3.3%
Q1 24
57.4%
2.9%
Cash Conversion
CSGP
CSGP
PAYX
PAYX
Q4 25
3.49×
1.13×
Q3 25
1.87×
Q2 25
23.63×
1.16×
Q1 25
1.38×
Q4 24
1.58×
0.71×
Q3 24
1.89×
1.28×
Q2 24
3.03×
0.58×
Q1 24
20.84×
1.35×

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%

PAYX
PAYX

Management Solutions$1.2B78%
Peo And Insurance Solutions$336.9M22%

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