CoStar GroupSTU:RLG -4.48%68 FCF Margin % is 10.93% as of Mar. 2026, which is 49% below its 10-year median of 21.26. GuruFocus rates STU:RLG with a GF Score™ of 68/100 and a GF Value™ of €89.28 (Significantly Undervalued). The stock has 1 warning sign investors should review. Among 1,754 Real Estate companies, CoStar Group ranks worse than 52.34% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. CoStar Group's Free Cash Flow for the
three
months ended in Mar. 2026 was €85 Mil. CoStar Group's Revenue for the
three
months ended in Mar. 2026 was €776 Mil. Therefore, CoStar Group's FCF Margin % for the quarter that ended in Mar. 2026 was 10.93%.
The historical rank and industry rank for CoStar Group's FCF Margin % or its related term are showing as below:
STU:RLG'
s FCF Margin % Range Over the Past 10 Years
Min: -8.95 Med: 21.26 Max: 29.4
Current: 4.87
During the past 13 years, the highest FCF Margin % of CoStar Group was 29.40%. The lowest was -8.95%. And the median was 21.26%.
STU:RLG's FCF Margin % is ranked worse than 52.34% of 1754
companies
in the Real Estate industry
Industry Median: 6.12
vs STU:RLG: 4.87
CoStar Group FCF Margin % Related Terms
CoStar Group FCF Margin % Historical Data
* Premium members only.
The historical data trend for CoStar Group's FCF Margin % 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.
STU:RLG vs JLL, BEKE, COMP: FCF Margin % Comparison
For the Real Estate Services subindustry, CoStar Group's FCF Margin %, along with its competitors' market caps and FCF Margin % 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 FCF Margin % vs Real Estate Industry
For the Real Estate industry and Real Estate sector, CoStar Group's FCF Margin % distribution charts can be found below:
* The bar in red indicates where CoStar Group's FCF Margin % falls into.
* 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 (STU:RLG) has a FCF Margin % of 10.93% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on CoStar Group and its competitors. This is 49% below median its historical median of 21.26. According to the industry distribution chart, CoStar Group ranks #918 out of 1754 companies in the Real Estate industry, placing it in the top 52.3%.
Is CoStar Group's FCF Margin % too high?
CoStar Group's current FCF Margin % of 10.93% is 49% below median its 10-year median of 21.26. The Real Estate industry median FCF Margin % is 6.12. CoStar Group's value of 10.93% is 78.6% above this industry median. Based on the distribution chart, CoStar Group ranks #918 out of 1754 companies in the Real Estate industry, which is below the industry midpoint. Overall, CoStar Group has a GF Score™ of 68/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does CoStar Group's FCF Margin % compare to JLL and BEKE?
According to the Real Estate industry distribution chart, CoStar Group ranks #918 out of 1754 companies for FCF Margin %. This places CoStar Group in the lower half of its industry. The industry median FCF Margin % is 6.12. CoStar Group's value of 10.93% is 78.6% above this benchmark. While the company's 10-year median is 21.26 vs. the industry median of 6.12, 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 FCF Margin % for a Real Estate company?
The median FCF Margin % among Real Estate companies is 6.12, based on 1,754 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CoStar Group's current FCF Margin % of 10.93% is 78.6% 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on CoStar Group and its competitors. For the Real Estate industry, the median FCF Margin % is 6.12 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CoStar Group's current FCF Margin % is 10.93%, which is 49% below median its own 10-year median of 21.26. 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 (STU:RLG) is currently considered Significantly Undervalued. The stock's GF Value™ is €89.28, compared to a current price of €25.07 — trading 71.9% below its estimated fair value. The current FCF Margin % is 10.93%, which is 49% below median its 10-year median of 21.26 and 78.6% above the Real Estate industry median of 6.12. CoStar Group's overall GF Score™ is 68/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For CoStar Group (STU:RLG), the current FCF Margin % is 10.93% 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 (STU:RLG) Overvalued in 2026?
Based on GuruFocus' analysis, CoStar Group stock appears to be undervalued.
The current stock price of €25.07 is trading 71.9% below its estimated GF Value™ of €89.28.
GuruFocus considers CoStar Group to be Significantly Undervalued.
Key valuation signals for STU:RLG:
FCF Margin %: 10.93% (49% below median its 10-year median of 21.26)
GF Value™: €89.28 vs. price of €25.07 (71.9% below fair value)
Industry Position: 78.6% above the Real Estate median (#918 of 1754)
No single metric tells the full story. See the STU:RLG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
68GF Score
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