National Australia Bank (ASX:NAB) OCF Margin %: -90.75% (As of Mar. 2026)


ASX:NAB National Australia Bank Ltd ASX:NAB
67 GF Score
Price A$37.45
GF Value A$42.23
Valuation Modestly Undervalued
! 3 Warning Signs
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What is National Australia Bank OCF Margin %?

National Australia Bank ASX:NAB -3.35% 67 OCF Margin % is -90.75% as of Mar. 2026. GuruFocus rates ASX:NAB with a GF Score™ of 67/100 and a GF Value™ of A$42.23 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,500 Banks companies, National Australia Bank ranks worse than 74.67% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. National Australia Bank's Cash Flow from Operations for the six months ended in Mar. 2026 was A$-9,884 Mil. National Australia Bank's Revenue for the six months ended in Mar. 2026 was A$10,891 Mil. Therefore, National Australia Bank's OCF Margin % for the quarter that ended in Mar. 2026 was -90.75%.

As of today, National Australia Bank's current OCF Yield % is 0.54%.

The historical rank and industry rank for National Australia Bank's OCF Margin % or its related term are showing as below:

ASX:NAB' s OCF Margin % Range Over the Past 10 Years
Min: -173.42   Med: 50.18   Max: 198.28
Current: 2.9


During the past 13 years, the highest OCF Margin % of National Australia Bank was 198.28%. The lowest was -173.42%. And the median was 50.18%.

ASX:NAB's OCF Margin % is ranked worse than
74.67% of 1500 companies
in the Banks industry
Industry Median: 29.44 vs ASX:NAB: 2.90


National Australia Bank OCF Margin % Related Terms


National Australia Bank OCF Margin % Historical Data

* Premium members only.

The historical data trend for National Australia Bank's OCF 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.

National Australia Bank OCF Margin % Chart

National Australia Bank Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
OCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.55 153.97 -129.42 -173.42 40.83

National Australia Bank Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
OCF Margin % 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 -270.73 -78.87 -19.47 99.19 -90.75

ASX:NAB vs JPM, BAC, WFC: OCF Margin % Comparison

For the Banks - Diversified subindustry, National Australia Bank's OCF Margin %, along with its competitors' market caps and OCF 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.


National Australia Bank OCF Margin % vs Banks Industry

For the Banks industry and Financial Services sector, National Australia Bank's OCF Margin % distribution charts can be found below:

* The bar in red indicates where National Australia Bank's OCF Margin % falls into.


ASX:NAB
67GF Score
National Australia Bank Ltd ASX:NAB
OCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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National Australia Bank OCF Margin % Calculation

OCF Margin % is the ratio of Cash Flow from Operations divided by net sales or Revenue, usually presented in percent.

National Australia Bank's OCF Margin for the fiscal year that ended in Sep. 2025 is calculated as

OCF Margin=Cash Flow from Operations (A: Sep. 2025 )/Revenue (A: Sep. 2025 )
=8511/20843
=40.83 %

National Australia Bank's OCF Margin for the quarter that ended in Mar. 2026 is calculated as

OCF Margin=Cash Flow from Operations (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=-9884/10891
=-90.75 %

* 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.

Frequently Asked Questions Learn more about OCF Margin % →
What does a OCF Margin % of -90.75% mean?
National Australia Bank (ASX:NAB) has a OCF Margin % of -90.75% as of Mar. 2026. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on National Australia Bank and its competitors. According to the industry distribution chart, National Australia Bank ranks #1120 out of 1500 companies in the Banks industry, placing it in the top 74.7%.
Is National Australia Bank's OCF Margin % too high?
National Australia Bank's current OCF Margin % is -90.75%. Based on the distribution chart, National Australia Bank ranks #1120 out of 1500 companies in the Banks industry, which is below the industry midpoint. Overall, National Australia Bank has a GF Score™ of 67/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does National Australia Bank's OCF Margin % compare to JPM and BAC?
According to the Banks industry distribution chart, National Australia Bank ranks #1120 out of 1500 companies for OCF Margin %. This places National Australia Bank in the lower half of its industry. The industry median OCF Margin % is 29.44. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Margin % for a Banks company?
The median OCF Margin % among Banks companies is 29.44, based on 1,500 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on National Australia Bank and its competitors. For the Banks industry, the median OCF Margin % is 29.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Australia Bank's current OCF Margin % is -90.75%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Australia Bank stock overvalued right now?
Based on GuruFocus' analysis, National Australia Bank (ASX:NAB) is currently considered Modestly Undervalued. The stock's GF Value™ is A$42.23, compared to a current price of A$37.45 — trading 11.3% below its estimated fair value. The current OCF Margin % is -90.75%. National Australia Bank's overall GF Score™ is 67/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For National Australia Bank (ASX:NAB), the current OCF Margin % is -90.75% 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 National Australia Bank (ASX:NAB) Overvalued in 2026?

Based on GuruFocus' analysis, National Australia Bank stock appears to be undervalued. The current stock price of A$37.45 is trading 11.3% below its estimated GF Value™ of A$42.23. GuruFocus considers National Australia Bank to be Modestly Undervalued.

Key valuation signals for ASX:NAB:

  • OCF Margin %: -90.75%
  • GF Value™: A$42.23 vs. price of A$37.45 (11.3% below fair value)
  • GF Score™: 67/100 with 3 warning signs

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


National Australia Bank Business Description

Address 395 Bourke Street, Level 28, Melbourne, VIC, AUS, 3000
National Australia Bank is the most business-focused of the four major banks, holding the largest share of business loans and the number-three spot in home loans. National Australia Bank is currently the second-largest bank by market capitalization, with the franchise covering consumer, small business, corporate, and institutional sectors. Under the UBank brand the bank also owns one of Australia's largest digital-only banks. Offshore operations in New Zealand round out the group.
67GF Score

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OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

A$37.45
Price
A$42.23
GF Value