Bong AB (OSTO:BONG) Piotroski F-Score: 5 (As of Jun. 29, 2026) — Near Median


OSTO:BONG Bong AB OSTO:BONG
40 GF Score
Price kr0.47
GF Value kr0.74
Valuation Possible Value Trap
! 4 Warning Signs
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What is Bong AB Piotroski F-Score?

Bong AB OSTO:BONG -4.66% 40 Piotroski F-Score is 5 as of Jun. 29, 2026, which is at its 10-year median of 5.00. GuruFocus rates OSTO:BONG with a GF Score™ of 40/100 and a GF Value™ of kr0.74 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 386 Packaging & Containers companies, Bong AB ranks better than 54.4% on this metric.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Bong AB has an F-score of 5 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for Bong AB's Piotroski F-Score or its related term are showing as below:

OSTO:BONG' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 5   Max: 7
Current: 5

During the past 13 years, the highest Piotroski F-Score of Bong AB was 7. The lowest was 3. And the median was 5.

Bong AB  (OSTO:BONG) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


Bong AB Piotroski F-Score Related Terms


Bong AB Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Bong AB's Piotroski F-Score 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.

Bong AB Piotroski F-Score Chart

Bong AB Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 7.00 7.00 4.00 5.00 4.00

Bong AB Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Piotroski F-Score 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 4.00 5.00 4.00 4.00 5.00

OSTO:BONG vs SW, PKG, IP: Piotroski F-Score Comparison

For the Packaging & Containers subindustry, Bong AB's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.


Bong AB Piotroski F-Score vs Packaging & Containers Industry

For the Packaging & Containers industry and Consumer Cyclical sector, Bong AB's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Bong AB's Piotroski F-Score falls into.


OSTO:BONG
40GF Score
Bong AB OSTO:BONG
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Mar26) TTM:Last Year (Mar25) TTM:
Net Income was -17.4 + -18 + 5.8 + -1.7 = kr-31 Mil.
Cash Flow from Operations was 25.2 + 4.3 + 53.5 + 6.2 = kr89 Mil.
Revenue was 418.9 + 434.8 + 467.2 + 443.9 = kr1,765 Mil.
Gross Profit was 58.8 + 60.7 + 72.4 + 71.1 = kr263 Mil.
Average Total Assets from the begining of this year (Mar25)
to the end of this year (Mar26) was
(1500.6 + 1503.9 + 1486.6 + 1446.504 + 1456) / 5 = kr1478.7208 Mil.
Total Assets at the begining of this year (Mar25) was kr1,501 Mil.
Long-Term Debt & Capital Lease Obligation was kr238 Mil.
Total Current Assets was kr553 Mil.
Total Current Liabilities was kr523 Mil.
Net Income was -3.4 + -13.1 + 3.2 + 0.4 = kr-13 Mil.

Revenue was 455.6 + 455.8 + 494.6 + 488.4 = kr1,894 Mil.
Gross Profit was 78.7 + 63.1 + 75.8 + 86 = kr304 Mil.
Average Total Assets from the begining of last year (Mar24)
to the end of last year (Mar25) was
(1650.7 + 1539.4 + 1599.2 + 1568.164 + 1500.6) / 5 = kr1571.6128 Mil.
Total Assets at the begining of last year (Mar24) was kr1,651 Mil.
Long-Term Debt & Capital Lease Obligation was kr281 Mil.
Total Current Assets was kr590 Mil.
Total Current Liabilities was kr508 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Bong AB's current Net Income (TTM) was -31. ==> Negative ==> Score 0.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Bong AB's current Cash Flow from Operations (TTM) was 89. ==> Positive ==> Score 1.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Mar25)
=-31.3/1500.6
=-0.02085832

ROA (Last Year)=Net Income/Total Assets (Mar24)
=-12.9/1650.7
=-0.00781487

Bong AB's return on assets of this year was -0.02085832. Bong AB's return on assets of last year was -0.00781487. ==> Last year is higher ==> Score 0.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Bong AB's current Net Income (TTM) was -31. Bong AB's current Cash Flow from Operations (TTM) was 89. ==> 89 > -31 ==> CFROA > ROA ==> Score 1.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Mar26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar25 to Mar26
=238.3/1478.7208
=0.1611528

Gearing (Last Year: Mar25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar24 to Mar25
=280.5/1571.6128
=0.17847908

Bong AB's gearing of this year was 0.1611528. Bong AB's gearing of last year was 0.17847908. ==> This year is lower or equal to last year. ==> Score 1.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Mar26)=Total Current Assets/Total Current Liabilities
=553.4/522.7
=1.0587335

Current Ratio (Last Year: Mar25)=Total Current Assets/Total Current Liabilities
=589.7/508.1
=1.16059831

Bong AB's current ratio of this year was 1.0587335. Bong AB's current ratio of last year was 1.16059831. ==> Last year's current ratio is higher ==> Score 0.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

Bong AB's number of shares in issue this year was 211.205. Bong AB's number of shares in issue last year was 211.205. ==> There is smaller number of shares in issue this year, or the same. ==> Score 1.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=263/1764.8
=0.14902539

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=303.6/1894.4
=0.16026182

Bong AB's gross margin of this year was 0.14902539. Bong AB's gross margin of last year was 0.16026182. ==> Last year's gross margin is higher ==> Score 0.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Mar25)
=1764.8/1500.6
=1.17606291

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Mar24)
=1894.4/1650.7
=1.14763434

Bong AB's asset turnover of this year was 1.17606291. Bong AB's asset turnover of last year was 1.14763434. ==> This year's asset turnover is higher. ==> Score 1.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=0+1+0+1+1+0+1+0+1
=5

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Bong AB has an F-score of 5 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 5 mean?
Bong AB (OSTO:BONG) has a Piotroski F-Score of 5 as of Jun. 29, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Bong AB and its competitors. This is near median its historical median of 5.00. Over the past decade, Bong AB's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Bong AB ranks #176 out of 386 companies in the Packaging & Containers industry, placing it in the top 45.6%.
Is Bong AB's Piotroski F-Score too high?
Bong AB's current Piotroski F-Score of 5 is near median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Packaging & Containers industry median Piotroski F-Score is 5.00. Bong AB's value of 5 is 0% at this industry median. Based on the distribution chart, Bong AB ranks #176 out of 386 companies in the Packaging & Containers industry, which is above the industry midpoint. Overall, Bong AB has a GF Score™ of 40/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Bong AB's Piotroski F-Score compare to SW and PKG?
According to the Packaging & Containers industry distribution chart, Bong AB ranks #176 out of 386 companies for Piotroski F-Score. This puts Bong AB in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Bong AB's value of 5 is 0% at this benchmark. Historically, Bong AB's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, Bong AB has consistently been at 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 Piotroski F-Score for a Packaging & Containers company?
The median Piotroski F-Score among Packaging & Containers companies is 5.00, based on 386 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Bong AB's current Piotroski F-Score of 5 is 0% at 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Bong AB and its competitors. For the Packaging & Containers industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Bong AB's current Piotroski F-Score is 5, which is near median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bong AB stock overvalued right now?
Based on GuruFocus' analysis, Bong AB (OSTO:BONG) is currently considered Possible Value Trap. The stock's GF Value™ is kr0.74, compared to a current price of kr0.47 — trading 36.4% below its estimated fair value. The current Piotroski F-Score is 5, which is near median its 10-year median of 5.00 and 0% at the Packaging & Containers industry median of 5.00. Bong AB's overall GF Score™ is 40/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Bong AB (OSTO:BONG), the current Piotroski F-Score is 5 as of Jun. 29, 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 Bong AB (OSTO:BONG) Overvalued in 2026?

Based on GuruFocus' analysis, Bong AB stock appears to be undervalued. The current stock price of kr0.47 is trading 36.4% below its estimated GF Value™ of kr0.74. GuruFocus considers Bong AB to be Possible Value Trap.

Key valuation signals for OSTO:BONG:

  • Piotroski F-Score: 5 (near median its 10-year median of 5.00)
  • GF Value™: kr0.74 vs. price of kr0.47 (36.4% below fair value)
  • GF Score™: 40/100 with 4 warning signs
  • Industry Position: 0% at the Packaging & Containers median (#176 of 386)

No single metric tells the full story. See the OSTO:BONG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Bong AB Business Description

Address Uddevagen 3, Box 516, Kristianstad, SWE, SE-291 25
Bong AB is a Sweden-based company providing specialized packaging and envelope products. It also offers solutions for the distribution and packaging of information, advertising materials, and lightweight goods. It offers a variety of shapes and sizes in the envelopes, including standard and customized envelopes, gift packaging, and retail packaging products. The operating segments of the company related to its geographical areas of operations and include Nordic, Central Europe, South Europe and North Africa, and the United Kingdom. The majority of its revenue is generated from the Central Europe region, which includes revenue generated from its business in Germany, Poland, Belgium, and Romania.
40GF Score

Get the complete analysis for OSTO:BONG

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

kr0.47
Price
kr0.74
GF Value