Firefly ABOSTO:FIRE -1.80%82 ROE % is 17.80% as of Mar. 2026, which is 36% below its 10-year median of 27.60. GuruFocus rates OSTO:FIRE with a GF Score™ of 82/100 and a GF Value™ of kr189.41 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 1,742 Construction companies, Firefly AB ranks better than 88.52% on this metric.
ROE % is calculated as Net Income divided by its average Total Stockholders Equity over a certain period of time. Firefly AB's annualized net income for the quarter that ended in Mar. 2026 was kr34.4 Mil. Firefly AB's average Total Stockholders Equity over the quarter that ended in Mar. 2026 was kr193.2 Mil. Therefore, Firefly AB's annualized ROE % for the quarter that ended in Mar. 2026 was 17.80%.
The historical rank and industry rank for Firefly AB's ROE % or its related term are showing as below:
OSTO:FIRE'
s ROE % Range Over the Past 10 Years
Min: 11.53 Med: 27.6 Max: 36.71
Current: 23.73
During the past 13 years, Firefly AB's highest ROE % was 36.71%. The lowest was 11.53%. And the median was 27.60%.
OSTO:FIRE's ROE % is ranked better than 88.52% of 1742
companies
in the Construction industry
Industry Median: 6.69
vs OSTO:FIRE: 23.73
Firefly AB (OSTO:FIRE) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is four times the quarterly (Mar. 2026) net income data. The Revenue data used here is four times the quarterly (Mar. 2026) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
Firefly AB ROE % Related Terms
Firefly AB ROE % Historical Data
* Premium members only.
The historical data trend for Firefly AB's ROE % 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 Building Products & Equipment subindustry, Firefly AB's ROE %, along with its competitors' market caps and ROE % 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.
Firefly AB ROE % vs Construction Industry
For the Construction industry and Industrials sector, Firefly AB's ROE % distribution charts can be found below:
* The bar in red indicates where Firefly AB's ROE % 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.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is four times the quarterly (Mar. 2026) net income data.
ROE % is displayed in the 30-year financial page.
Firefly AB (OSTO:FIRE) has a ROE % of 17.80% as of Mar. 2026. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Firefly AB and its competitors. This is 36% below median its historical median of 27.60. Over the past decade, Firefly AB's ROE % has ranged from 11.53 to 36.71. According to the industry distribution chart, Firefly AB ranks #200 out of 1742 companies in the Construction industry, placing it in the top 11.5%.
Is Firefly AB's ROE % too high?
Firefly AB's current ROE % of 17.80% is 36% below median its 10-year median of 27.60. Over the past 10 years, this metric has ranged from a low of 11.53 to a high of 36.71. The Construction industry median ROE % is 6.69. Firefly AB's value of 17.80% is 166.1% above this industry median. Based on the distribution chart, Firefly AB ranks #200 out of 1742 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Firefly AB has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Firefly AB's ROE % compare to TT and JCI?
According to the Construction industry distribution chart, Firefly AB ranks #200 out of 1742 companies for ROE %. This places Firefly AB in the top 12% of its industry — outperforming the majority of peers. The industry median ROE % is 6.69. Firefly AB's value of 17.80% is 166.1% above this benchmark. Historically, Firefly AB's own ROE % has ranged from 11.53 to 36.71 over the past decade. While the company's 10-year median is 27.60 vs. the industry median of 6.69, Firefly 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 ROE % for a Construction company?
The median ROE % among Construction companies is 6.69, based on 1,742 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Firefly AB's current ROE % of 17.80% is 166.1% 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Firefly AB and its competitors. For the Construction industry, the median ROE % is 6.69 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Firefly AB's current ROE % is 17.80%, which is 36% below median its own 10-year median of 27.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Firefly AB stock overvalued right now?
Based on GuruFocus' analysis, Firefly AB (OSTO:FIRE) is currently considered Modestly Undervalued. The stock's GF Value™ is kr189.41, compared to a current price of kr164.00 — trading 13.4% below its estimated fair value. The current ROE % is 17.80%, which is 36% below median its 10-year median of 27.60 and 166.1% above the Construction industry median of 6.69. Firefly AB's overall GF Score™ is 82/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Firefly AB (OSTO:FIRE), the current ROE % is 17.80% 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 Firefly AB (OSTO:FIRE) Overvalued in 2026?
Based on GuruFocus' analysis, Firefly AB stock appears to be undervalued.
The current stock price of kr164.00 is trading 13.4% below its estimated GF Value™ of kr189.41.
GuruFocus considers Firefly AB to be Modestly Undervalued.
Key valuation signals for OSTO:FIRE:
ROE %: 17.80% (36% below median its 10-year median of 27.60)
GF Value™: kr189.41 vs. price of kr164.00 (13.4% below fair value)
Industry Position: 166.1% above the Construction median (#200 of 1742)
No single metric tells the full story. See the OSTO:FIRE stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Firefly AB is a supplier of spark detection, fire and dust explosion protection systems in Sweden. The company develops, manufactures and sells high-tech systems, which detect and minimise the risk of fires and dust explosions. It has two business areas: Industrial applications and Infra systems. Industrial applications include customized fire prevention systems, which monitor industrial processes in areas such as tissue, food, woodworking, bioenergy, and recycling. The business area of Infra systems includes early fire detection in subway-, train-, road or cable tunnel systems by means of multiple-gas detection.
82GF Score
Get the complete analysis for OSTO:FIRE
ROE % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
OSTO:FIRE has been successfully added to your 
