CoStar Group (MIL:1CSGP) Altman Z-Score: 4.01 (As of Jun. 26, 2026) — 70% Below Median


MIL:1CSGP CoStar Group Inc MIL:1CSGP
56 GF Score
Price €26.90
GF Value €95.81
Valuation Significantly Undervalued
! 1 Warning Sign
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What is CoStar Group Altman Z-Score?

CoStar Group MIL:1CSGP 56 Altman Z-Score is 4.01 as of Jun. 26, 2026, which is 70% below its 10-year median of 13.52. GuruFocus rates MIL:1CSGP with a GF Score™ of 56/100 and a GF Value™ of €95.81 (Significantly Undervalued). The stock has 1 warning sign investors should review. Among 1,731 Real Estate companies, CoStar Group ranks better than 87.58% on this metric.

The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.

Good Sign:

Altman Z-score of 3.96 is strong.

CoStar Group has a Altman Z-Score of 4.01, indicating it is in Safe Zones. This implies the Altman Z-Score is strong.

The zones of discrimination were as such:

When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.

The historical rank and industry rank for CoStar Group's Altman Z-Score or its related term are showing as below:

MIL:1CSGP' s Altman Z-Score Range Over the Past 10 Years
Min: 3.96   Med: 13.52   Max: 34.18
Current: 3.96

During the past 13 years, CoStar Group's highest Altman Z-Score was 34.18. The lowest was 3.96. And the median was 13.52.


CoStar Group  (MIL:1CSGP) Altman Z-Score Explanation

X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.

X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.

X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.

X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.

X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.

Read more about Altman Z-Score and the original research.


Be Aware

Altman Z-Score does not apply to financial companies.


CoStar Group Altman Z-Score Related Terms


CoStar Group Altman Z-Score Historical Data

* Premium members only.

The historical data trend for CoStar Group's Altman Z-Score can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

CoStar Group Altman Z-Score Chart

CoStar Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Altman Z-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 13.47 13.75 15.02 11.62 8.57

CoStar Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Altman Z-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 11.46 11.79 10.57 8.57 5.24

MIL:1CSGP vs JLL, BEKE, COMP: Altman Z-Score Comparison

For the Real Estate Services subindustry, CoStar Group's Altman Z-Score, along with its competitors' market caps and Altman Z-Score data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


CoStar Group Altman Z-Score vs Real Estate Industry

For the Real Estate industry and Real Estate sector, CoStar Group's Altman Z-Score distribution charts can be found below:

* The bar in red indicates where CoStar Group's Altman Z-Score falls into.


MIL:1CSGP
56GF Score
CoStar Group Inc MIL:1CSGP
Altman Z-Score is just one metric. See GF Score™, valuation, warning signs, and more.
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CoStar Group Altman Z-Score Calculation

Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.

CoStar Group's Altman Z-Score for today is calculated with this formula:

Z=1.2*X1+1.4*X2+3.3*X3+0.6*X4+1.0*X5
=1.2*0.0914+1.4*0.2315+3.3*0.0048+0.6*5.3822+1.0*0.3335
=4.01

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.

Trailing Twelve Months (TTM) ended in Mar. 2026:
Total Assets was €8,792 Mil.
Total Current Assets was €1,476 Mil.
Total Current Liabilities was €672 Mil.
Retained Earnings was €2,035 Mil.
Pre-Tax Income was 10.38 + 52.009 + -39.022 + 18.727 = €42 Mil.
Interest Expense was 0 + 0 + 0 + 0 = €0 Mil.
Revenue was 775.905 + 768.515 + 710.227 + 677.387 = €2,932 Mil.
Market Cap (Today) was €10,303 Mil.
Total Liabilities was €1,914 Mil.

* Note that for stock reported semi-annually or annually, GuruFocus uses latest annual data as the TTM data.

X1=Working Capital/Total Assets
=(Total Current Assets - Total Current Liabilities)/Total Assets
=(1475.69 - 672.105)/8791.86
=0.0914

X2=Retained Earnings/Total Assets
=2035.345/8791.86
=0.2315

X3=Earnings Before Interest and Taxes/Total Assets
=(Pre-Tax Income - Interest Expense)/Total Assets
=(42.094 - 0)/8791.86
=0.0048

X4=Market Value Equity/Book Value of Total Liabilities
=Market Cap/Total Liabilities
=10302.768/1914.245
=5.3822

X5=Revenue/Total Assets
=2932.034/8791.86
=0.3335

The zones of discrimination were as such:

Distress Zones - 1.81 < Grey Zones < 2.99 - Safe Zones

CoStar Group has a Altman Z-Score of 4.01 indicating it is in Safe Zones.

Study by Altman found that companies that are in Distress Zone have more than 80% of chances of bankruptcy in two years.

Frequently Asked Questions Learn more about Altman Z-Score →
What does a Altman Z-Score of 4.01 mean?
CoStar Group (MIL:1CSGP) has a Altman Z-Score of 4.01 as of Jun. 26, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on CoStar Group and its competitors. This is 70% below median its historical median of 13.52. Over the past decade, CoStar Group's Altman Z-Score has ranged from 3.96 to 34.18. According to the industry distribution chart, CoStar Group ranks #215 out of 1731 companies in the Real Estate industry, placing it in the top 12.4%.
Is CoStar Group's Altman Z-Score too high?
CoStar Group's current Altman Z-Score of 4.01 is 70% below median its 10-year median of 13.52. Over the past 10 years, this metric has ranged from a low of 3.96 to a high of 34.18. The Real Estate industry median Altman Z-Score is 1.30. CoStar Group's value of 4.01 is 208.5% above this industry median. Based on the distribution chart, CoStar Group ranks #215 out of 1731 companies in the Real Estate industry, which is in the top quartile — a strong position relative to peers. Overall, CoStar Group has a GF Score™ of 56/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does CoStar Group's Altman Z-Score compare to JLL and BEKE?
According to the Real Estate industry distribution chart, CoStar Group ranks #215 out of 1731 companies for Altman Z-Score. This places CoStar Group in the top 12% of its industry — outperforming the majority of peers. The industry median Altman Z-Score is 1.30. CoStar Group's value of 4.01 is 208.5% above this benchmark. Historically, CoStar Group's own Altman Z-Score has ranged from 3.96 to 34.18 over the past decade. While the company's 10-year median is 13.52 vs. the industry median of 1.30, CoStar Group has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Altman Z-Score for a Real Estate company?
The median Altman Z-Score among Real Estate companies is 1.30, based on 1,731 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CoStar Group's current Altman Z-Score of 4.01 is 208.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on CoStar Group and its competitors. For the Real Estate industry, the median Altman Z-Score is 1.30 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CoStar Group's current Altman Z-Score is 4.01, which is 70% below median its own 10-year median of 13.52. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CoStar Group stock overvalued right now?
Based on GuruFocus' analysis, CoStar Group (MIL:1CSGP) is currently considered Significantly Undervalued. The stock's GF Value™ is €95.81, compared to a current price of €26.90 — trading 71.9% below its estimated fair value. The current Altman Z-Score is 4.01, which is 70% below median its 10-year median of 13.52 and 208.5% above the Real Estate industry median of 1.30. CoStar Group's overall GF Score™ is 56/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For CoStar Group (MIL:1CSGP), the current Altman Z-Score is 4.01 as of Jun. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is CoStar Group (MIL:1CSGP) Overvalued in 2026?

Based on GuruFocus' analysis, CoStar Group stock appears to be undervalued. The current stock price of €26.90 is trading 71.9% below its estimated GF Value™ of €95.81. GuruFocus considers CoStar Group to be Significantly Undervalued.

Key valuation signals for MIL:1CSGP:

  • Altman Z-Score: 4.01 (70% below median its 10-year median of 13.52)
  • GF Value™: €95.81 vs. price of €26.90 (71.9% below fair value)
  • GF Score™: 56/100 with 1 warning sign
  • Industry Position: 208.5% above the Real Estate median (#215 of 1731)

No single metric tells the full story. See the MIL:1CSGP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


CoStar Group Business Description

Address 1201 Wilson Boulevard, Arlington, VA, USA, 22209
CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.
56GF Score

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Altman Z-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€26.90
Price
€95.81
GF Value