Firefly AB (OSTO:FIRE) Net Debt Paydown Yield % : 0.10% (As of Aug. 09, 2026) — 400% Above Median

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Director of Data and Quant Analytics at GuruFocus
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OSTO:FIRE Firefly AB OSTO:FIRE
85 GF Score
Price kr158.50
GF Value kr190.87
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Firefly AB Net Debt Paydown Yield %?

Firefly AB OSTO:FIRE +0.63% 85 Net Debt Paydown Yield % is 0.10% as of Aug. 09, 2026, which is 400% above its 10-year median of 0.02. GuruFocus rates OSTO:FIRE with a GF Score™ of 85/100 and a GF Value™ of kr190.87 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 1,672 Construction companies, Firefly AB ranks better than 56.7% on this metric.

Net Debt Paydown Yield % is a metric that evaluates the total amount of debt a company has paid in relation to its market capitalization. It is a measure of a company's willingness and ability to reduce its debt. As of today, Firefly AB's Net Debt Paydown Yield % was 0.10%.


Firefly AB  (OSTO:FIRE) Net Debt Paydown Yield % Explanation

Net Debt Paydown Yield % is the change in average of four quarters of company's total debt over a company's market cap. Assuming the total value of a company remains that same, shareholder value is increased as debt is reduced. In other words, it is a measure of the willingness and ability of a firm's management to pay down debt. Companies that have high debt paydown yields indicate that they are more aggressive with paying down debt.

In the calculation of Net Debt Paydown Yield %, we use the reductions of TTM average total debt one-year-ago and TTM average total debt at present, divided by its Market Cap.

We calculating the TTM average debt by adding up the total debt, calculated by the sum of Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation, in the trailing twelve months(TTM) divided by the counts of the total debt, accoring to the company's report frequency.


Firefly AB Net Debt Paydown Yield % Related Terms


Firefly AB Net Debt Paydown Yield % Historical Data

* Premium members only.

The historical data trend for Firefly AB's Net Debt Paydown Yield % 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.

Firefly AB Net Debt Paydown Yield % Chart

Firefly AB Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Net Debt Paydown Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.02 -0.01 0.08

Firefly AB Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Net Debt Paydown Yield % 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 -0.01 -0.01 -0.01 0.08 0.08

OSTO:FIRE vs TT, JCI, CARR: Net Debt Paydown Yield % Comparison

For the Building Products & Equipment subindustry, Firefly AB's Net Debt Paydown Yield %, along with its competitors' market caps and Net Debt Paydown Yield % 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 Net Debt Paydown Yield % vs Construction Industry

For the Construction industry and Industrials sector, Firefly AB's Net Debt Paydown Yield % distribution charts can be found below:

* The bar in red indicates where Firefly AB's Net Debt Paydown Yield % falls into.


OSTO:FIRE
85GF Score
Firefly AB OSTO:FIRE
Net Debt Paydown Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
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Firefly AB Net Debt Paydown Yield % Calculation

Firefly AB's Net Debt Paydown Yield % for the quarter that ended in Mar. 2026 is calculated as:

Net Debt Paydown Yield %
=( TTM Average Debt   (1-Year Ago))-TTM Average Debt )/Market Cap
=( 2.07-1.11 )/1134.189
=0.08 %

* 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.

* All the data are calculated by TTM values. Note that if a companies is traded in several exchanges, then we calculate the company level data for Net Debt Paydown Yield % using the primary share class stock data. The calculation result in definition page is for demonstration purpose only, and it's showing the share class level data. Therefore, the numbers in the calculation may differ from elsewhere if the stock is not a primary share.

What does a Net Debt Paydown Yield % of 0.10% mean?
Firefly AB (OSTO:FIRE) has a Net Debt Paydown Yield % of 0.10% as of Aug. 09, 2026. Net Debt Paydown Yield is a metric that evaluates the total amount of debt a company has paid in relation to its market capitalization. This metric provides insight into a company's willingness and ability to reduce its debt using free cash flow. View historical data on Firefly AB and its competitors. This is 400% above median its historical median of 0.02. According to the industry distribution chart, Firefly AB ranks #724 out of 1672 companies in the Construction industry, placing it in the top 43.3%.
Is Firefly AB's Net Debt Paydown Yield % too high?
Firefly AB's current Net Debt Paydown Yield % of 0.10% is 400% above median its 10-year median of 0.02. Based on the distribution chart, Firefly AB ranks #724 out of 1672 companies in the Construction industry, which is above the industry midpoint. Overall, Firefly AB has a GF Score™ of 85/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Firefly AB's Net Debt Paydown Yield % compare to TT and JCI?
According to the Construction industry distribution chart, Firefly AB ranks #724 out of 1672 companies for Net Debt Paydown Yield %. This puts Firefly AB in the upper half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net Debt Paydown Yield % for a Construction company?
A good Net Debt Paydown Yield % depends on the Construction industry context. However, Net Debt Paydown Yield % 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 Net Debt Paydown Yield % mean?
A high Net Debt Paydown Yield % can signal that a stock is expensive relative to its fundamentals. Net Debt Paydown Yield is a metric that evaluates the total amount of debt a company has paid in relation to its market capitalization. This metric provides insight into a company's willingness and ability to reduce its debt using free cash flow. View historical data on Firefly AB and its competitors. Firefly AB's current Net Debt Paydown Yield % is 0.10%, which is 400% above median its own 10-year median of 0.02. 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 kr190.87, compared to a current price of kr158.50 — trading 17% below its estimated fair value. The current Net Debt Paydown Yield % is 0.10%, which is 400% above median its 10-year median of 0.02. Firefly AB's overall GF Score™ is 85/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Debt Paydown Yield % calculated?
Net Debt Paydown Yield % is calculated from a company's financial statements. For Firefly AB (OSTO:FIRE), the current Net Debt Paydown Yield % is 0.10% as of Aug. 09, 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 kr158.50 is trading 17% below its estimated GF Value™ of kr190.87. GuruFocus considers Firefly AB to be Modestly Undervalued.

Key valuation signals for OSTO:FIRE:

  • Net Debt Paydown Yield %: 0.10% (400% above median its 10-year median of 0.02)
  • GF Value™: kr190.87 vs. price of kr158.50 (17% below fair value)
  • GF Score™: 85/100 with 2 warning signs

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 Business Description

Address Heliosgatan 3, Stockholm, SWE, 120 30
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.
85GF Score

Get the complete analysis for OSTO:FIRE

Net Debt Paydown Yield % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

kr158.50
Price
kr190.87
GF Value