Castellum ABOSTO:CAST +0.36%66 FCF Margin % is 49.72% as of Mar. 2026, which is 9% above its 10-year median of 45.82. GuruFocus rates OSTO:CAST with a GF Score™ of 66/100 and a GF Value™ of kr113.16 (Modestly Overvalued). The stock has 3 warning signs investors should review. Among 1,754 Real Estate companies, Castellum AB ranks better than 81.19% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Castellum AB's Free Cash Flow for the
three
months ended in Mar. 2026 was kr1,154 Mil. Castellum AB's Revenue for the
three
months ended in Mar. 2026 was kr2,321 Mil. Therefore, Castellum AB's FCF Margin % for the quarter that ended in Mar. 2026 was 49.72%.
The historical rank and industry rank for Castellum AB's FCF Margin % or its related term are showing as below:
OSTO:CAST'
s FCF Margin % Range Over the Past 10 Years
Min: 40.87 Med: 45.82 Max: 60.75
Current: 43.06
During the past 13 years, the highest FCF Margin % of Castellum AB was 60.75%. The lowest was 40.87%. And the median was 45.82%.
OSTO:CAST's FCF Margin % is ranked better than 81.19% of 1754
companies
in the Real Estate industry
Industry Median: 6.12
vs OSTO:CAST: 43.06
Castellum AB FCF Margin % Related Terms
Castellum AB FCF Margin % Historical Data
* Premium members only.
The historical data trend for Castellum AB'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.
For the Real Estate - Development subindustry, Castellum AB'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.
Castellum AB FCF Margin % vs Real Estate Industry
For the Real Estate industry and Real Estate sector, Castellum AB's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Castellum AB'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.
Castellum AB (OSTO:CAST) has a FCF Margin % of 49.72% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Castellum AB and its competitors. This is near median its historical median of 45.82. Over the past decade, Castellum AB's FCF Margin % has ranged from 40.87 to 60.75. According to the industry distribution chart, Castellum AB ranks #330 out of 1754 companies in the Real Estate industry, placing it in the top 18.8%.
Is Castellum AB's FCF Margin % too high?
Castellum AB's current FCF Margin % of 49.72% is near median its 10-year median of 45.82. Over the past 10 years, this metric has ranged from a low of 40.87 to a high of 60.75. The Real Estate industry median FCF Margin % is 6.12. Castellum AB's value of 49.72% is 712.4% above this industry median. Based on the distribution chart, Castellum AB ranks #330 out of 1754 companies in the Real Estate industry, which is in the top quartile — a strong position relative to peers. Overall, Castellum AB has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Castellum AB's FCF Margin % compare to competitors?
According to the Real Estate industry distribution chart, Castellum AB ranks #330 out of 1754 companies for FCF Margin %. This places Castellum AB in the top 19% of its industry — outperforming the majority of peers. The industry median FCF Margin % is 6.12. Castellum AB's value of 49.72% is 712.4% above this benchmark. Historically, Castellum AB's own FCF Margin % has ranged from 40.87 to 60.75 over the past decade. While the company's 10-year median is 45.82 vs. the industry median of 6.12, Castellum AB 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. Castellum AB's current FCF Margin % of 49.72% is 712.4% 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 Castellum AB 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. Castellum AB's current FCF Margin % is 49.72%, which is near median its own 10-year median of 45.82. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Castellum AB stock overvalued right now?
Based on GuruFocus' analysis, Castellum AB (OSTO:CAST) is currently considered Modestly Overvalued. The stock's GF Value™ is kr113.16, compared to a current price of kr125.95 — trading 11.3% above its estimated fair value. The current FCF Margin % is 49.72%, which is near median its 10-year median of 45.82 and 712.4% above the Real Estate industry median of 6.12. Castellum AB's overall GF Score™ is 66/100 with 3 warning signs 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 Castellum AB (OSTO:CAST), the current FCF Margin % is 49.72% 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 Castellum AB (OSTO:CAST) Overvalued in 2026?
Based on GuruFocus' analysis, Castellum AB stock appears to be overvalued.
The current stock price of kr125.95 is trading 11.3% above its estimated GF Value™ of kr113.16.
GuruFocus considers Castellum AB to be Modestly Overvalued.
Key valuation signals for OSTO:CAST:
FCF Margin %: 49.72% (near median its 10-year median of 45.82)
GF Value™: kr113.16 vs. price of kr125.95 (11.3% above fair value)
Industry Position: 712.4% above the Real Estate median (#330 of 1754)
No single metric tells the full story. See the OSTO:CAST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Castellum AB is a Swedish property company that owns, manages, and develops commercial properties in growth cities. The Company holds properties mainly in Sweden, with additional presence in Denmark and Finland. Its operating segments are organized by geographical areas: Stockholm; West (Greater Gothenburg, including Boras); Central (Orebro, Linkoping, Norrkoping, Jonkoping, and Vaxjo); Malardalen (Uppsala and Vasteras); Oresund (Malmo, Lund, Helsingborg, and Copenhagen); and Finland.
66GF Score
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