CoStar Group (MIL:1CSGP) Owner Earnings per Share (TTM): -0.25 (As of Mar. 2026)

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MIL:1CSGP CoStar Group Inc MIL:1CSGP
56 GF Score
Price €24.97
GF Value €89.31
Valuation Significantly Undervalued
! 1 Warning Sign
View Full Analysis

What is CoStar Group Owner Earnings per Share (TTM)?

CoStar Group MIL:1CSGP 56 Owner Earnings per Share (TTM) is -0.25 as of Mar. 2026. GuruFocus rates MIL:1CSGP with a GF Score™ of 56/100 and a GF Value™ of €89.31 (Significantly Undervalued). The stock has 1 warning sign investors should review. Among 799 Real Estate companies, CoStar Group ranks worse than 125156.32% on this metric.

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

CoStar Group's Owner Earnings per Share (TTM) ended in Mar. 2026 was €-0.25. It's Price-to-Owner-Earnings ratio for today is 0.


The historical rank and industry rank for CoStar Group's Owner Earnings per Share (TTM) or its related term are showing as below:


During the past 13 years, the highest Price-to-Owner-Earnings ratio of CoStar Group was 2905.00. The lowest was 41.27. And the median was 96.28.


MIL:1CSGP's Price-to-Owner-Earnings is not ranked *
in the Real Estate industry.
Industry Median: 10.15
* Ranked among companies with meaningful Price-to-Owner-Earnings only.

CoStar Group's Earnings per Share (Diluted) for the three months ended in Mar. 2026 was €0.01. Its Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 was €0.05. It's PE Ratio (TTM) ratio for today is 480.19.

CoStar Group's EPS without NRI for the three months ended in Mar. 2026 was €0.20. Its EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 was €0.81. It's PE Ratio without NRI ratio for today is 30.94.


Be Aware

Assumption: Companies usually do not report maintenance capital expenditures and growth capital expenditures separately. Here we use estimated numbers and average them over 5 years. The method to estimate maintenance capital expenditures can be found in above part 4.

Note: GuruFocus' Change In Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And it includes non-current parts of assets and liabilities.


CoStar Group Owner Earnings per Share (TTM) Related Terms


CoStar Group Owner Earnings per Share (TTM) Historical Data

* Premium members only.

The historical data trend for CoStar Group's Owner Earnings per Share (TTM) 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 Owner Earnings per Share (TTM) Chart

CoStar Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Owner Earnings per Share (TTM)
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 -0.17 -0.39

CoStar Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Owner Earnings per Share (TTM) 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 -0.40 -0.25 -0.53 -0.39 -0.28

MIL:1CSGP vs JLL, BEKE, COMP: Owner Earnings per Share (TTM) Comparison

For the Real Estate Services subindustry, CoStar Group's Price-to-Owner-Earnings, along with its competitors' market caps and Price-to-Owner-Earnings 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 Price-to-Owner-Earnings vs Real Estate Industry

For the Real Estate industry and Real Estate sector, CoStar Group's Price-to-Owner-Earnings distribution charts can be found below:

* The bar in red indicates where CoStar Group's Price-to-Owner-Earnings falls into.


MIL:1CSGP
56GF Score
CoStar Group Inc MIL:1CSGP
Owner Earnings per Share (TTM) is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

CoStar Group Owner Earnings per Share (TTM) Calculation

In 1986 Berkshire Hathaway Shareholder Letter, Warren Buffett defined owner earnings as follows:

"These represent (a) reported earnings plus (b) depreciation, depletion, amortization, and certain other non-cash charges...less (c) the average annual amount of capitalized expenditures for plant and equipment, etc. that the business requires to fully maintain its long-term competitive position and its unit volume. (If the business requires additional working capital to maintain its competitive position and unit volume, the increment also should be included in (c))...Our owner-earnings equation does not yield the deceptively precise figures provided by GAAP, since (c) must be a guess - and one sometimes very difficult to make. Despite this problem, we consider the owner earnings figure, not the GAAP figure, to be the relevant item for valuation purposes - both for investors in buying stocks and for managers in buying entire businesses...All of this points up the absurdity of the 'cash flow' numbers that are often set forth in Wall Street reports. These numbers routinely include (a) plus (b) - but do not subtract (c)."

To make it simple, then you will have:

Owner Earnings per Share (TTM) = (Net Income + Depreciation, Depletion and Amortization + Change In Deferred Tax - 5Y Average of Maintenance Capital Expenditure + Change In Working Capital) / Shares Outstanding (Diluted Average)

CoStar Group's Owner Earnings per Share (TTM) Calculation:

TTM / Last Quarter Average of Last 20 Quarters
Net Income 21
Depreciation, Depletion and Amortization 256
Change In Deferred Tax 34
5Y Average of Maintenance Capital Expenditure 224
Change In Working Capital -203
Shares Outstanding (Diluted Average) 414

1. Start with "Net Income" from income statement. CoStar Group's Net Income for the trailing twelve months (TTM) ended in Mar. 2026 was €21 Mil.

2. "Depreciation, Depletion and Amortization" is from cashflow statement. CoStar Group's Depreciation, Depletion and Amortization for the trailing twelve months (TTM) ended in Mar. 2026 was €256 Mil. This needs to be added back because company does not actually need to pay cash for it. It is a non-cash item.

3. Other non-cash charges usually include "Stock Based Compensation" and "Change In Deferred Tax":
However, to be conservative, GuruFocus will not add Stock Based Compensation back to net income. CoStar Group's Change In Deferred Tax for the trailing twelve months (TTM) ended in Mar. 2026 was €34 Mil.

4. Average maintenance capital expenditure over a business/industry cycle: 5-Year Average Maintenance Capital Expenditure = €224 Mil

It is usually best to take a long-term average of maintenance capital expenditure. Ideally this would be as long as 10 years and include at least one economic downturn. However, since many companies do not have as long as 10-year history, here GuruFocus uses the latest 5 years data to do the calculation. To smooth out unusual years but reflect recent developments, we take an average of the 5 year maintenance capital expenditure.

The following shows how to get maintenance capital expenditure.

First, calculate the revenue change regarding to the previous quarter. If the revenue decreased from the previous quarter, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
Second, if the revenue increased from the previous quarter, then calculate the percentage of Net PPE as of corresponding Revenue.
Growth Capital Expenditure = Percentage of Property, Plant and Equipment as of corresponding Revenue * Revenue Increase
Third, calculate Capital Expenditure (positive) - Growth Capital Expenditure.
If [Capital Expenditure (positive) - Growth Capital Expenditure] was negative, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
If [Capital Expenditure (positive) - Growth Capital Expenditure] was positive, then the Maintenance Capital Expenditure = Capital Expenditure (positive) - Growth Capital Expenditure.
Fourth, get the average of the 5 years maintenance capital expenditure.

CoStar Group's 5-Year Average Maintenance Capital Expenditure = €224 Mil

5. "Change In Working Capital" is from cashflow statement. CoStar Group's Change In Working Capital for the trailing twelve months (TTM) ended in Mar. 2026 was €-203 Mil.
Note: GuruFocus' Change in Working Capital is provided by Morningstar. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement from original financial report. And sometimes it includes non-current parts of assets and liabilities.

6. CoStar Group's Shares Outstanding (Diluted Average) for the months ended in Mar. 2026 was 414.000 Mil.

CoStar Group's Onwer Earnings Per Share for Mar. 2026 is calculated as:

Owner Earnings per Share (TTM)
=( Net Income+Depreciation, Depletion and Amortization+Change In Deferred Tax
=( 21.354 +256.111+34.113
-5Y Avg of Maintenance CAPEX+Change In Working Capital )/Shares Outstanding (Diluted Average)
-224.09687630267+-203.258)/414.000
=-0.25

Price-to-Owner-Earnings=Current Price/Owner Earnings per Share (TTM)
=24.97/-0.25
=0

* 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.

What does a Owner Earnings per Share (TTM) of -0.25 mean?
CoStar Group (MIL:1CSGP) has a Owner Earnings per Share (TTM) of -0.25 as of Mar. 2026. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on CoStar Group. Over the past decade, CoStar Group's Owner Earnings per Share (TTM) has ranged from 41.27 to 2,905.00. According to the industry distribution chart, CoStar Group ranks #999999 out of 799 companies in the Real Estate industry.
Is CoStar Group's Owner Earnings per Share (TTM) too high?
CoStar Group's current Owner Earnings per Share (TTM) is -0.25. Over the past 10 years, this metric has ranged from a low of 41.27 to a high of 2,905.00. Based on the distribution chart, CoStar Group ranks #999999 out of 799 companies in the Real Estate industry, which is in the bottom quartile 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 Owner Earnings per Share (TTM) compare to JLL and BEKE?
According to the Real Estate industry distribution chart, CoStar Group ranks #999999 out of 799 companies for Owner Earnings per Share (TTM). This places CoStar Group in the lower half of its industry. The industry median Owner Earnings per Share (TTM) is 10.15. Historically, CoStar Group's own Owner Earnings per Share (TTM) has ranged from 41.27 to 2,905.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Owner Earnings per Share (TTM) for a Real Estate company?
The median Owner Earnings per Share (TTM) among Real Estate companies is 10.15, based on 799 companies in the industry. Companies in the top quartile (top 25%) have a Owner Earnings per Share (TTM) significantly above this median, while those in the bottom quartile fall well below. However, Owner Earnings per Share (TTM) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Owner Earnings per Share (TTM) mean?
A high Owner Earnings per Share (TTM) can signal that a stock is expensive relative to its fundamentals. Warren Buffett defined owner earnings as reported earnings plus depreciation less average maintenance capital expenditure. View historical data on CoStar Group. For the Real Estate industry, the median Owner Earnings per Share (TTM) is 10.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CoStar Group's current Owner Earnings per Share (TTM) is -0.25. 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 €89.31, compared to a current price of €24.97 — trading 72% below its estimated fair value. The current Owner Earnings per Share (TTM) is -0.25. 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 Owner Earnings per Share (TTM) calculated?
Owner Earnings per Share (TTM) is calculated from a company's financial statements. For CoStar Group (MIL:1CSGP), the current Owner Earnings per Share (TTM) is -0.25 as of Mar. 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 €24.97 is trading 72% below its estimated GF Value™ of €89.31. GuruFocus considers CoStar Group to be Significantly Undervalued.

Key valuation signals for MIL:1CSGP:

  • Owner Earnings per Share (TTM): -0.25
  • GF Value™: €89.31 vs. price of €24.97 (72% below fair value)
  • GF Score™: 56/100 with 1 warning sign

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

Get the complete analysis for MIL:1CSGP

Owner Earnings per Share (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€24.97
Price
€89.31
GF Value