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Costar Group, Inc.. (CSGP) Stock Fundamental Analysis & AI Rating 2026

CSGP Nasdaq Services-Business Services, NEC DE CIK: 0001057352
Recently Updated • Analysis: May 6, 2026 • SEC Data: 2026-03-31
Combined AI Rating
SELL
78% Confidence
AGREEMENT
SELL
78% Conf
HOLD
77% Conf

📊 CSGP Key Takeaways

Revenue: $897.0M
Net Margin: 0.3%
Free Cash Flow: $107.0M
Current Ratio: 2.20x
Debt/Equity: 0.13x
EPS: $0.01
AI Rating: SELL with 78% confidence
Costar Group, Inc.. (CSGP) receives a SELL rating with 78% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $897.0M, net profit margin of 0.3%, and return on equity (ROE) of 0.0%, Costar Group, Inc.. demonstrates mixed fundamentals in the Services sector. Below is our complete CSGP stock analysis for 2026.

Is Costar Group, Inc.. (CSGP) a Good Investment?

Claude

CoSTAR faces a severe profitability crisis with net income declining 95% YoY despite 18.7% revenue growth, driven by unexplained operating expense surge that crushed operating margin to 0.3%. While the strong balance sheet, excellent gross margins (78.1%), and solid free cash flow provide a financial cushion, the interest coverage ratio of 0.4x signals debt servicing stress and threatens long-term sustainability without urgent operational improvements.

ChatGPT

CoStar Group shows strong top-line momentum and a high-quality underlying business model, with 18.7% revenue growth and an exceptional 78.9% gross margin. However, that growth is currently not translating into operating profitability, as operating income turned negative and diluted EPS fell sharply, making the fundamentals solid on balance sheet strength but mixed on earnings quality.

Why Buy Costar Group, Inc.. Stock? CSGP Key Strengths

Claude
  • + Strong topline growth of 18.7% YoY demonstrates demand for core services
  • + Excellent gross margins of 78.1% indicate healthy unit economics and pricing power
  • + Fortress balance sheet with low leverage (0.13x D/E) and strong liquidity (2.2x current ratio) provide financial flexibility
  • + Positive free cash flow of $107M ($1.2B cash position) offers runway to address operational issues
ChatGPT
  • + Strong revenue growth indicates continued demand and platform expansion
  • + Very high gross margin suggests a scalable, attractive core business model
  • + Balance sheet is exceptionally strong with high liquidity, large cash reserves, and minimal leverage

CSGP Stock Risks: Costar Group, Inc.. Investment Risks

Claude
  • ! Operating margin collapse to 0.3% reflects massive unexplained operating expense increases that offset revenue growth
  • ! Interest coverage ratio of 0.4x is critically low; operating income of $3M inadequately covers debt service obligations
  • ! Net income declined 95% YoY and returns on equity/assets are near zero, indicating capital is being destroyed
  • ! The $698M gap between gross profit and operating income suggests structural cost problems or undisclosed charges
ChatGPT
  • ! Negative operating margin shows cost growth is overwhelming revenue gains
  • ! Net income and EPS are near break-even, limiting proof of durable earnings power
  • ! Free cash flow margin is modest, reducing financial flexibility if investment intensity remains high

Key Metrics to Watch

Claude
  • * Operating expense ratio and detailed SG&A breakdown next quarter
  • * Operating margin trend and path to sustainable profitability
  • * Interest coverage ratio recovery above 1.0x
  • * Operating cash flow sustainability and any deterioration in conversion ratios
ChatGPT
  • * Operating margin recovery
  • * Free cash flow conversion

Costar Group, Inc.. (CSGP) Financial Metrics & Key Ratios

Revenue
$897.0M
Net Income
$3.0M
EPS (Diluted)
$0.01
Free Cash Flow
$107.0M
Total Assets
$10.2B
Cash Position
$1.2B

💡 AI Analyst Insight

Strong liquidity with a 2.20x current ratio provides a solid financial cushion.

CSGP Profit Margin, ROE & Profitability Analysis

Gross Margin 78.1%
Operating Margin 0.3%
Net Margin 0.3%
ROE 0.0%
ROA 0.0%
FCF Margin 11.9%

CSGP vs Services Sector: How Costar Group, Inc.. Compares

How Costar Group, Inc.. compares to Services sector averages

Net Margin
CSGP 0.3%
vs
Sector Avg 10.0%
CSGP Sector
ROE
CSGP 0.0%
vs
Sector Avg 16.0%
CSGP Sector
Current Ratio
CSGP 2.2x
vs
Sector Avg 1.5x
CSGP Sector
Debt/Equity
CSGP 0.1x
vs
Sector Avg 0.7x
CSGP Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Costar Group, Inc.. Stock Overvalued? CSGP Valuation Analysis 2026

Based on fundamental analysis, Costar Group, Inc.. has mixed fundamental signals relative to the Services sector in 2026.

Return on Equity
0.0%
Sector avg: 16%
Net Profit Margin
0.3%
Sector avg: 10%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.13x
Sector avg: 0.7x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Costar Group, Inc.. Balance Sheet: CSGP Debt, Cash & Liquidity

Current Ratio
2.20x
Quick Ratio
2.18x
Debt/Equity
0.13x
Debt/Assets
21.8%
Interest Coverage
0.43x
Long-term Debt
$1.0B

CSGP Revenue & Earnings Growth: 5-Year Financial Trend

CSGP 5-year financial data: Year 2021: Revenue $1.9B, Net Income $315.0M, EPS $0.86. Year 2022: Revenue $2.2B, Net Income $227.1M, EPS $0.59. Year 2023: Revenue $2.5B, Net Income $292.6M, EPS $0.74. Year 2024: Revenue $2.7B, Net Income $369.5M, EPS $0.93. Year 2025: Revenue $3.2B, Net Income $375.0M, EPS $0.92.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Costar Group, Inc..'s revenue has grown significantly by 67% over the 5-year period, indicating strong business expansion. The most recent EPS of $0.92 reflects profitable operations.

CSGP Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
11.9%
Free cash flow / Revenue

CSGP Quarterly Earnings & Performance

Quarterly financial performance data for Costar Group, Inc.. including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q1 2026 $732.0M $3.0M $0.01
Q3 2025 $692.6M -$30.9M $-0.07
Q2 2025 $677.8M $6.2M $0.01
Q1 2025 $656.4M $6.7M $0.02
Q3 2024 $624.7M $6.7M $0.13
Q2 2024 $605.9M $6.7M $0.05
Q1 2024 $584.4M $6.7M $0.02
Q3 2023 $556.9M $72.3M $0.18

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Costar Group, Inc.. Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$152.0M
Cash generated from operations
Stock Buybacks
$505.0M
Shares repurchased (TTM)
Capital Expenditures
$45.0M
Investment in assets
Dividends
None
No dividend program

CSGP SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Costar Group, Inc.. (CIK: 0001057352)

📋 Recent SEC Filings

Date Form Document Action
May 4, 2026 4 xslF345X06/wk-form4_1777888860.xml View →
Apr 30, 2026 DEF 14A d903159ddef14a.htm View →
Apr 29, 2026 10-Q csgp-20260331.htm View →
Apr 28, 2026 8-K form8-kq12026earningspr.htm View →
Mar 17, 2026 4 xslF345X05/wk-form4_1773778361.xml View →

Frequently Asked Questions about CSGP

What is the AI rating for CSGP?

Costar Group, Inc.. (CSGP) has a Combined AI Rating of SELL from Claude (SELL) and ChatGPT (HOLD) with 78% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are CSGP's key strengths?

Claude: Strong topline growth of 18.7% YoY demonstrates demand for core services. Excellent gross margins of 78.1% indicate healthy unit economics and pricing power. ChatGPT: Strong revenue growth indicates continued demand and platform expansion. Very high gross margin suggests a scalable, attractive core business model.

What are the risks of investing in CSGP?

Claude: Operating margin collapse to 0.3% reflects massive unexplained operating expense increases that offset revenue growth. Interest coverage ratio of 0.4x is critically low; operating income of $3M inadequately covers debt service obligations. ChatGPT: Negative operating margin shows cost growth is overwhelming revenue gains. Net income and EPS are near break-even, limiting proof of durable earnings power.

What is CSGP's revenue and growth?

Costar Group, Inc.. reported revenue of $897.0M.

Does CSGP pay dividends?

Costar Group, Inc.. does not currently pay dividends.

Where can I find CSGP SEC filings?

Official SEC filings for Costar Group, Inc.. (CIK: 0001057352) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is CSGP's EPS?

Costar Group, Inc.. has a diluted EPS of $0.01.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is CSGP a good stock to buy right now?

Based on our AI fundamental analysis in May 2026, Costar Group, Inc.. has a SELL rating with 78% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is CSGP stock overvalued or undervalued?

Valuation metrics for CSGP: ROE of 0.0% (sector avg: 16%), net margin of 0.3% (sector avg: 10%). Compare these metrics with sector averages to assess valuation.

Should I buy CSGP stock in 2026?

Our dual AI analysis gives Costar Group, Inc.. a combined SELL rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is CSGP's free cash flow?

Costar Group, Inc..'s operating cash flow is $152.0M, with capital expenditures of $45.0M. FCF margin is 11.9%.

How does CSGP compare to other Services stocks?

Vs Services sector averages: Net margin 0.3% (avg: 10%), ROE 0.0% (avg: 16%), current ratio 2.20 (avg: 1.5).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: May 6, 2026 | Data as of: 2026-03-31 | Powered by Claude AI