mBank (WAR:MBK) Piotroski F-Score: 5 (As of Aug. 08, 2026) — Near Median

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WAR:MBK mBank SA WAR:MBK
66 GF Score
Price zł1,415.00
GF Value zł782.91
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is mBank Piotroski F-Score?

mBank WAR:MBK -1.50% 66 Piotroski F-Score is 5 as of Aug. 08, 2026, which is at its 10-year median of 5.00. GuruFocus rates WAR:MBK with a GF Score™ of 66/100 and a GF Value™ of zł782.91 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 1,498 Banks companies, mBank ranks worse than 57.61% 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

mBank 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 mBank's Piotroski F-Score or its related term are showing as below:

WAR:MBK' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 5   Max: 8
Current: 5

During the past 13 years, the highest Piotroski F-Score of mBank was 8. The lowest was 2. And the median was 5.

mBank  (WAR:MBK) 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.


mBank Piotroski F-Score Related Terms


mBank Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for mBank'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.

mBank Piotroski F-Score Chart

mBank 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 3.00 6.00 6.00 7.00 7.00

mBank Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 5.00 6.00 7.00 6.00 5.00

WAR:MBK vs PNC: Piotroski F-Score Comparison

For the Banks - Regional subindustry, mBank'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.


mBank Piotroski F-Score vs Banks Industry

For the Banks industry and Financial Services sector, mBank's Piotroski F-Score distribution charts can be found below:

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


WAR:MBK
66GF Score
mBank SA WAR:MBK
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 (Jun26) TTM:Last Year (Jun25) TTM:
Net Income was 836.99 + 1041.489 + 953 + 1060 = zł3,891 Mil.
Cash Flow from Operations was 4051.874 + 15510.635 + -16490 + -6017 = zł-2,944 Mil.
Revenue was 3227.395 + 3129.904 + 3157 + 3161 = zł12,675 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(256175.925 + 261538.419 + 280253.227 + 290547 + 304402) / 5 = zł278583.3142 Mil.
Total Assets at the begining of this year (Jun25) was zł256,176 Mil.
Long-Term Debt & Capital Lease Obligation was zł19,760 Mil.
Total Assets was zł304,402 Mil.
Total Liabilities was zł281,042 Mil.
Net Income was 572.864 + 986.002 + 706 + 959 = zł3,224 Mil.

Revenue was 3189.264 + 3153.426 + 3091 + 3203 = zł12,637 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(230295.591 + 238574.346 + 245957.363 + 246067.967 + 256175.925) / 5 = zł243414.2384 Mil.
Total Assets at the begining of last year (Jun24) was zł230,296 Mil.
Long-Term Debt & Capital Lease Obligation was zł17,809 Mil.
Total Assets was zł256,176 Mil.
Total Liabilities was zł236,663 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.

mBank's current Net Income (TTM) was 3,891. ==> Positive ==> Score 1.

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.

mBank's current Cash Flow from Operations (TTM) was -2,944. ==> Negative ==> Score 0.

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 (Jun25)
=3891.479/256175.925
=0.01519065

ROA (Last Year)=Net Income/Total Assets (Jun24)
=3223.866/230295.591
=0.01399882

mBank's return on assets of this year was 0.01519065. mBank's return on assets of last year was 0.01399882. ==> This year is higher. ==> Score 1.

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.

mBank's current Net Income (TTM) was 3,891. mBank's current Cash Flow from Operations (TTM) was -2,944. ==> -2,944 <= 3,891 ==> CFROA <= ROA ==> Score 0.

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: Jun26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun25 to Jun26
=19760/278583.3142
=0.07093031

Gearing (Last Year: Jun25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun24 to Jun25
=17809.409/243414.2384
=0.07316503

mBank's gearing of this year was 0.07093031. mBank's gearing of last year was 0.07316503. ==> 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

* Note that for banks and insurance companies, there's no Total Current Assets and Total Current Liabilities reported. Thus, we use Total Assets and Total Liabilities to calculate current ratio for banks and insurance companies.

Current Ratio (This Year: Jun26)=Total Assets/Total Liabilities
=304402/281042
=1.08311925

Current Ratio (Last Year: Jun25)=Total Assets/Total Liabilities
=256175.925/236663.164
=1.08244951

mBank's current ratio of this year was 1.08311925. mBank's current ratio of last year was 1.08244951. ==> This year's current ratio is higher. ==> Score 1.

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.

mBank's number of shares in issue this year was 42.569. mBank's number of shares in issue last year was 42.549. ==> There is larger number of shares in issue this year. ==> Score 0.

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.

* Note that for banks and insurance companies, there's no Gross Profit reported. Thus, we use net income instead of gross profit and calculate Net Margin for this score.

Net Margin (This Year: TTM)=Net Income/Revenue
=3891.479/12675.299
=0.3070128

Net Margin (Last Year: TTM)=Net Income/Revenue
=3223.866/12636.69
=0.2551195

mBank's net margin of this year was 0.3070128. mBank's net margin of last year was 0.2551195. ==> This year's net margin is higher. ==> Score 1.

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 (Jun25)
=12675.299/256175.925
=0.04947888

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Jun24)
=12636.69/230295.591
=0.05487161

mBank's asset turnover of this year was 0.04947888. mBank's asset turnover of last year was 0.05487161. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

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

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

mBank 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?
mBank (WAR:MBK) has a Piotroski F-Score of 5 as of Aug. 08, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on mBank and its competitors. This is near median its historical median of 5.00. Over the past decade, mBank's Piotroski F-Score has ranged from 2.00 to 8.00. According to the industry distribution chart, mBank ranks #863 out of 1498 companies in the Banks industry, placing it in the top 57.6%.
Is mBank's Piotroski F-Score too high?
mBank'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 2.00 to a high of 8.00. The Banks industry median Piotroski F-Score is 6.00. mBank's value of 5 is 16.7% below this industry median. Based on the distribution chart, mBank ranks #863 out of 1498 companies in the Banks industry, which is below the industry midpoint. Overall, mBank has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does mBank's Piotroski F-Score compare to PNC?
According to the Banks industry distribution chart, mBank ranks #863 out of 1498 companies for Piotroski F-Score. This places mBank in the lower half of its industry. The industry median Piotroski F-Score is 6.00. mBank's value of 5 is 16.7% below this benchmark. Historically, mBank's own Piotroski F-Score has ranged from 2.00 to 8.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 6.00, mBank has consistently been below 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 Banks company?
The median Piotroski F-Score among Banks companies is 6.00, based on 1,498 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. mBank's current Piotroski F-Score of 5 is 16.7% below 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 mBank and its competitors. For the Banks industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. mBank'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 mBank stock overvalued right now?
Based on GuruFocus' analysis, mBank (WAR:MBK) is currently considered Significantly Overvalued. The stock's GF Value™ is zł782.91, compared to a current price of zł1,415.00 — trading 80.7% above its estimated fair value. The current Piotroski F-Score is 5, which is near median its 10-year median of 5.00 and 16.7% below the Banks industry median of 6.00. mBank's overall GF Score™ is 66/100 with 7 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 mBank (WAR:MBK), the current Piotroski F-Score is 5 as of Aug. 08, 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 mBank (WAR:MBK) Overvalued in 2026?

Based on GuruFocus' analysis, mBank stock appears to be overvalued. The current stock price of zł1,415.00 is trading 80.7% above its estimated GF Value™ of zł782.91. GuruFocus considers mBank to be Significantly Overvalued.

Key valuation signals for WAR:MBK:

  • Piotroski F-Score: 5 (near median its 10-year median of 5.00)
  • GF Value™: zł782.91 vs. price of zł1,415.00 (80.7% above fair value)
  • GF Score™: 66/100 with 7 warning signs
  • Industry Position: 16.7% below the Banks median (#863 of 1498)

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


mBank Business Description

Other Exchanges BRU:Germany
Address 18 Prosta Street, Warsaw, POL, 00-850
mBank SA is a financial services group operating in Poland, as well as the Czech Republic and Slovakia. Its primary business is retail, corporate, and investment banking, but the company also conducts leasing, factoring, and wealth management operations, among other financial services. The group offers insurance policies through a strategic partnership. The bank plans to emphasize customer service, particularly in the development of its banking solutions. The group conducts its business segments in The Retail Banking segment, The Corporate and Investment Banking segment, The Treasury and Other segments, and the FX Mortgage Loans segment and the majority of its revenue is generated from the retail banking segment.
66GF Score

Get the complete analysis for WAR:MBK

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

zł1,415.00
Price
zł782.91
GF Value