Big Yellow GroupLSE:BYG +5.35%72 Net Margin % is 48.73% as of Mar. 2026, which is 51% below its 10-year median of 99.80. GuruFocus rates LSE:BYG with a GF Score™ of 72/100 and a GF Value™ of £10.56 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 928 REITs companies, Big Yellow Group ranks better than 60.67% on this metric.
The historical rank and industry rank for Big Yellow Group's Net Margin % or its related term are showing as below:
LSE:BYG'
s Net Margin % Range Over the Past 10 Years
Min: 38.84 Med: 99.8 Max: 407.01
Current: 59.74
LSE:BYG's Net Margin % is ranked better than 60.67% of 928
companies
in the REITs industry
Industry Median: 45.23
vs LSE:BYG: 59.74
Big Yellow Group (LSE:BYG) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Big Yellow Group Net Margin % Related Terms
Big Yellow Group Net Margin % Historical Data
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The historical data trend for Big Yellow Group's Net 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 REIT - Industrial subindustry, Big Yellow Group's Net Margin %, along with its competitors' market caps and Net 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.
Big Yellow Group Net Margin % vs REITs Industry
For the REITs industry and Real Estate sector, Big Yellow Group's Net Margin % distribution charts can be found below:
* The bar in red indicates where Big Yellow Group's Net 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.
Big Yellow Group (LSE:BYG) has a Net Margin % of 48.73% as of Mar. 2026. Net margin is the ratio of total net income to net sales. View historical data on Big Yellow Group and its competitors. This is 51% below median its historical median of 99.80. Over the past decade, Big Yellow Group's Net Margin % has ranged from 38.84 to 407.01. According to the industry distribution chart, Big Yellow Group ranks #365 out of 928 companies in the REITs industry, placing it in the top 39.3%.
Is Big Yellow Group's Net Margin % too high?
Big Yellow Group's current Net Margin % of 48.73% is 51% below median its 10-year median of 99.80. Over the past 10 years, this metric has ranged from a low of 38.84 to a high of 407.01. The REITs industry median Net Margin % is 45.23. Big Yellow Group's value of 48.73% is 7.7% above this industry median. Based on the distribution chart, Big Yellow Group ranks #365 out of 928 companies in the REITs industry, which is above the industry midpoint. Overall, Big Yellow Group has a GF Score™ of 72/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Big Yellow Group's Net Margin % compare to PLD and PSA?
According to the REITs industry distribution chart, Big Yellow Group ranks #365 out of 928 companies for Net Margin %. This puts Big Yellow Group in the upper half of its industry. The industry median Net Margin % is 45.23. Big Yellow Group's value of 48.73% is 7.7% above this benchmark. Historically, Big Yellow Group's own Net Margin % has ranged from 38.84 to 407.01 over the past decade. While the company's 10-year median is 99.80 vs. the industry median of 45.23, Big Yellow 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 Net Margin % for a REITs company?
The median Net Margin % among REITs companies is 45.23, based on 928 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Big Yellow Group's current Net Margin % of 48.73% is 7.7% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Big Yellow Group and its competitors. For the REITs industry, the median Net Margin % is 45.23 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Big Yellow Group's current Net Margin % is 48.73%, which is 51% below median its own 10-year median of 99.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Big Yellow Group stock overvalued right now?
Based on GuruFocus' analysis, Big Yellow Group (LSE:BYG) is currently considered Modestly Undervalued. The stock's GF Value™ is £10.56, compared to a current price of £9.06 — trading 14.2% below its estimated fair value. The current Net Margin % is 48.73%, which is 51% below median its 10-year median of 99.80 and 7.7% above the REITs industry median of 45.23. Big Yellow Group's overall GF Score™ is 72/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Big Yellow Group (LSE:BYG), the current Net Margin % is 48.73% 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 Big Yellow Group (LSE:BYG) Overvalued in 2026?
Based on GuruFocus' analysis, Big Yellow Group stock appears to be undervalued.
The current stock price of £9.06 is trading 14.2% below its estimated GF Value™ of £10.56.
GuruFocus considers Big Yellow Group to be Modestly Undervalued.
Key valuation signals for LSE:BYG:
Net Margin %: 48.73% (51% below median its 10-year median of 99.80)
GF Value™: £10.56 vs. price of £9.06 (14.2% below fair value)
Industry Position: 7.7% above the REITs median (#365 of 928)
No single metric tells the full story. See the LSE:BYG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Big Yellow Group PLC operates a portfolio of modern, purpose-built self-storage stores. The Group provides self storage solutions for domestic and business customers, including storage space, flexi offices, dedicated office space, delivery acceptance, forklifting, courier arrangement services, and the sale of boxes and packing materials. The Group operates Big Yellow stores and Armadillo stores across the United Kingdom, with a focus on London and the South East. The Group operates in one segment, the provision of self-storage and related services.
72GF Score
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