AAON (AAON) Beneish M-Score: -1.85 (As of Sep. 09, 2026)

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AAON AAON Inc AAON
91 GF Score
Price $79.40
GF Value $144.36
Valuation Significantly Undervalued
! 4 Warning Signs
View Full Analysis

What is AAON Beneish M-Score?

AAON AAON 91 Beneish M-Score is -1.85 as of Sep. 09, 2026. GuruFocus rates AAON with a GF Score™ of 91/100 and a GF Value™ of $144.36 (Significantly Undervalued). The stock has 4 warning signs investors should review. Among 1,709 Construction companies, AAON ranks worse than 78.76% on this metric.

The zones of discrimination for M-Score is as such:

An M-Score of equal or less than -1.78 suggests that the company is unlikely to be a manipulator.
An M-Score of greater than -1.78 signals that the company is likely to be a manipulator.

Good Sign:

Beneish M-Score -1.85 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

The historical rank and industry rank for AAON's Beneish M-Score or its related term are showing as below:

AAON' s Beneish M-Score Range Over the Past 10 Years
Min: -3.4   Med: -2.29   Max: 8.93
Current: -1.85

During the past 13 years, the highest Beneish M-Score of AAON was 8.93. The lowest was -3.40. And the median was -2.29.


AAON Beneish M-Score Historical Data

* Premium members only.

The historical data trend for AAON's Beneish M-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.

AAON Beneish M-Score Chart

AAON Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Beneish M-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 8.93 -1.87 -2.24 -2.26 -1.52

AAON Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Beneish M-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 -1.56 -1.45 -1.52 -1.83 -1.85

AAON vs FBIN, BLDR, AWI: Beneish M-Score Comparison

For the Building Products & Equipment subindustry, AAON's Beneish M-Score, along with its competitors' market caps and Beneish M-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.


AAON Beneish M-Score vs Construction Industry

For the Construction industry and Industrials sector, AAON's Beneish M-Score distribution charts can be found below:

* The bar in red indicates where AAON's Beneish M-Score falls into.


AAON
91GF Score
AAON Inc AAON
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

AAON Beneish M-Score Calculation

The M-score was created by Professor Messod Beneish. Instead of measuring the bankruptcy risk (Altman Z-Score) or business trend (Piotroski F-Score), M-score can be used to detect the risk of earnings manipulation. This is the original research paper on M-score.

The M-Score Variables:

The M-score of AAON for today is based on a combination of the following eight different indices:

M=-4.84+0.92 * DSRI+0.528 * GMI+0.404 * AQI+0.892 * SGI+0.115 * DEPI
=-4.84+0.92 * 1.0123+0.528 * 1.1214+0.404 * 0.7585+0.892 * 1.5353+0.115 * 1.0441
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 0.9317+4.679 * 0.039637-0.327 * 1.0759
=-1.85

* 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:
Total Receivables was $639 Mil.
Revenue was 626.976 + 496.936 + 424.217 + 384.238 = $1,932 Mil.
Gross Profit was 152.491 + 124.965 + 109.77 + 106.861 = $494 Mil.
Total Current Assets was $995 Mil.
Total Assets was $1,864 Mil.
Property, Plant and Equipment(Net PPE) was $699 Mil.
Depreciation, Depletion and Amortization(DDA) was $85 Mil.
Selling, General, & Admin. Expense(SGA) was $250 Mil.
Total Current Liabilities was $330 Mil.
Long-Term Debt & Capital Lease Obligation was $449 Mil.
Net Income was 56.659 + 39.815 + 32.032 + 30.782 = $159 Mil.
Non Operating Income was -1.29 + 0.077 + 0.124 + -0.036 = $-1 Mil.
Cash Flow from Operations was 20.974 + 33.994 + 19.318 + 12.256 = $87 Mil.
Total Receivables was $411 Mil.
Revenue was 311.567 + 322.054 + 297.718 + 327.252 = $1,259 Mil.
Gross Profit was 82.729 + 86.364 + 77.615 + 114.158 = $361 Mil.
Total Current Assets was $654 Mil.
Total Assets was $1,399 Mil.
Property, Plant and Equipment(Net PPE) was $577 Mil.
Depreciation, Depletion and Amortization(DDA) was $74 Mil.
Selling, General, & Admin. Expense(SGA) was $175 Mil.
Total Current Liabilities was $211 Mil.
Long-Term Debt & Capital Lease Obligation was $333 Mil.




1. DSRI = Days Sales in Receivables Index

Measured as the ratio of Revenue in Total Receivables in year t to year t-1.

A large increase in DSR could be indicative of revenue inflation.

DSRI=(Receivables_t / Revenue_t) / (Receivables_t-1 / Revenue_t-1)
=(638.848 / 1932.367) / (411.059 / 1258.591)
=0.330604 / 0.326603
=1.0123

2. GMI = Gross Margin Index

Measured as the ratio of gross margin in year t-1 to gross margin in year t.

Gross margin has deteriorated when this index is above 1. A firm with poorer prospects is more likely to manipulate earnings.

GMI=GrossMargin_t-1 / GrossMargin_t
=(GrossProfit_t-1 / Revenue_t-1) / (GrossProfit_t / Revenue_t)
=(360.866 / 1258.591) / (494.087 / 1932.367)
=0.286722 / 0.25569
=1.1214

3. AQI = Asset Quality Index

AQI is the ratio of asset quality in year t to year t-1.

Asset quality is measured as the ratio of non-current assets other than Property, Plant and Equipment to Total Assets.

AQI=(1 - (CurrentAssets_t + PPE_t) / TotalAssets_t) / (1 - (CurrentAssets_t-1 + PPE_t-1) / TotalAssets_t-1)
=(1 - (995.02 + 698.969) / 1863.683) / (1 - (654.151 + 577.274) / 1399.413)
=0.091053 / 0.120042
=0.7585

4. SGI = Sales Growth Index

Ratio of Revenue in year t to sales in year t-1.

Sales growth is not itself a measure of manipulation. However, growth companies are likely to find themselves under pressure to manipulate in order to keep up appearances.

SGI=Sales_t / Sales_t-1
=Revenue_t / Revenue_t-1
=1932.367 / 1258.591
=1.5353

5. DEPI = Depreciation Index

Measured as the ratio of the rate of Depreciation, Depletion and Amortization in year t-1 to the corresponding rate in year t.

DEPI greater than 1 indicates that assets are being depreciated at a slower rate. This suggests that the firm might be revising useful asset life assumptions upwards, or adopting a new method that is income friendly.

DEPI=(Depreciation_t-1 / (Depreciaton_t-1 + PPE_t-1)) / (Depreciation_t / (Depreciaton_t + PPE_t))
=(73.876 / (73.876 + 577.274)) / (85.216 / (85.216 + 698.969))
=0.113455 / 0.108668
=1.0441

Note: If the Depreciation, Depletion and Amortization data is not available, we assume that the depreciation rate is constant and set the Depreciation Index to 1.

6. SGAI = Sales, General and Administrative expenses Index

The ratio of Selling, General, & Admin. Expense(SGA) to Sales in year t relative to year t-1.

SGA expenses index > 1 means that the company is becoming less efficient in generate sales.

SGAI=(SGA_t / Sales_t) / (SGA_t-1 /Sales_t-1)
=(249.678 / 1932.367) / (174.532 / 1258.591)
=0.129208 / 0.138673
=0.9317

7. LVGI = Leverage Index

The ratio of total debt to Total Assets in year t relative to yeat t-1.

An LVGI > 1 indicates an increase in leverage

LVGI=((LTD_t + CurrentLiabilities_t) / TotalAssets_t) / ((LTD_t-1 + CurrentLiabilities_t-1) / TotalAssets_t-1)
=((448.699 + 330.271) / 1863.683) / ((332.924 + 210.726) / 1399.413)
=0.417973 / 0.388484
=1.0759

8. TATA = Total Accruals to Total Assets

Total accruals calculated as the change in working capital accounts other than cash less depreciation.

TATA=(IncomefromContinuingOperations_t - CashFlowsfromOperations_t) / TotalAssets_t
=(NetIncome_t - NonOperatingIncome_t - CashFlowsfromOperations_t) / TotalAssets_t
=(159.288 - -1.125 - 86.542) / 1863.683
=0.039637

An M-Score of equal or less than -1.78 suggests that the company is unlikely to be a manipulator. An M-Score of greater than -1.78 signals that the company is likely to be a manipulator.

AAON has a M-score of -1.85 suggests that the company is unlikely to be a manipulator.

Frequently Asked Questions Learn more about Beneish M-Score →
What does a Beneish M-Score of -1.85 mean?
AAON (AAON) has a Beneish M-Score of -1.85 as of Sep. 09, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on AAON and its competitors. According to the industry distribution chart, AAON ranks #1346 out of 1709 companies in the Construction industry, placing it in the top 78.8%.
Is AAON's Beneish M-Score too high?
AAON's current Beneish M-Score is -1.85. Based on the distribution chart, AAON ranks #1346 out of 1709 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, AAON has a GF Score™ of 91/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does AAON's Beneish M-Score compare to FBIN and BLDR?
According to the Construction industry distribution chart, AAON ranks #1346 out of 1709 companies for Beneish M-Score. This places AAON in the lower 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 Beneish M-Score for a Construction company?
A good Beneish M-Score depends on the Construction industry context. However, Beneish M-Score 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 Beneish M-Score mean?
A high Beneish M-Score can signal that a stock is expensive relative to its fundamentals. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on AAON and its competitors. AAON's current Beneish M-Score is -1.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AAON stock overvalued right now?
Based on GuruFocus' analysis, AAON (AAON) is currently considered Significantly Undervalued. The stock's GF Value™ is $144.36, compared to a current price of $79.40 — trading 45% below its estimated fair value. The current Beneish M-Score is -1.85. AAON's overall GF Score™ is 91/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Beneish M-Score calculated?
Beneish M-Score is calculated from a company's financial statements. For AAON (AAON), the current Beneish M-Score is -1.85 as of Sep. 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 AAON (AAON) Overvalued in 2026?

Based on GuruFocus' analysis, AAON stock appears to be undervalued. The current stock price of $79.40 is trading 45% below its estimated GF Value™ of $144.36. GuruFocus considers AAON to be Significantly Undervalued.

Key valuation signals for AAON:

  • Beneish M-Score: -1.85
  • GF Value™: $144.36 vs. price of $79.40 (45% below fair value)
  • GF Score™: 91/100 with 4 warning signs

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


AAON Business Description

Other Exchanges AAO:Germany
Address 2425 South Yukon Avenue, Tulsa, OK, USA, 74107
AAON Inc is a manufacturer of air-conditioning and heating equipment. The products include rooftop units, chillers, packaged outdoor mechanical rooms, air-handling units, makeup air units, energy-recovery units, condensing units, geothermal heat pumps, and self-contained units and coils. The company operates through three segments: AAON Oklahoma, AAON Coil Products, and BASX. It generates the majority of its revenue from the AAON Oklahoma segment which derives maximum revenue, engineers, manufactures, and sells, semi-custom, and custom HVAC systems, designs and manufactures control solutions, and sells retail parts to customers through retail part stores and online.
91GF Score

Get the complete analysis for AAON

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

$79.40
Price
$144.36
GF Value