BUKS (Butler National) E10: $0.12 (As of Jan. 2026)


BUKS Butler National Corp BUKS
69 GF Score
Price $4.21
GF Value $1.60
Valuation Significantly Overvalued
! 4 Warning Signs
View Full Analysis

What is Butler National E10?

Butler National BUKS +1.24% 69 E10 is $0.12 as of Jan. 2026. GuruFocus rates BUKS with a GF Score™ of 69/100 and a GF Value™ of $1.60 (Significantly Overvalued). The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Butler National's adjusted earnings per share data for the three months ended in Jan. 2026 was $0.100. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $0.12 for the trailing ten years ended in Jan. 2026.

During the past 12 months, Butler National's average E10 Growth Rate was 33.30% per year. During the past 3 years, the average E10 Growth Rate was 35.70% per year. During the past 5 years, the average E10 Growth Rate was 28.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Butler National was 35.70% per year. The lowest was -20.60% per year. And the median was 14.50% per year.

As of today (2026-07-07), Butler National's current stock price is $4.21. Butler National's E10 for the quarter that ended in Jan. 2026 was $0.12. Butler National's Shiller PE Ratio of today is 35.08.

During the past 13 years, the highest Shiller PE Ratio of Butler National was 35.42. The lowest was 8.50. And the median was 16.14.


Butler National  (OTCPK:BUKS) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Butler National's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=4.21/0.12
=35.08

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Butler National was 35.42. The lowest was 8.50. And the median was 16.14.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Butler National E10 Related Terms


Butler National E10 Historical Data

* Premium members only.

The historical data trend for Butler National's E10 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.

Butler National E10 Chart

Butler National Annual Data
Trend Apr16 Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.03 0.04 0.05 0.07 0.10

Butler National Quarterly Data
Apr21 Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26
E10 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 0.09 0.10 0.10 0.11 0.12

BUKS vs POWW, FJET, SIDU: E10 Comparison

For the Aerospace & Defense subindustry, Butler National's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.


Butler National Shiller PE Ratio vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Butler National's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Butler National's Shiller PE Ratio falls into.


BUKS
69GF Score
Butler National Corp BUKS
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Butler National E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Butler National's adjusted earnings per share data for the three months ended in Jan. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jan. 2026 (Change)*Current CPI (Jan. 2026)
=0.1/325.2520*325.2520
=0.100

Current CPI (Jan. 2026) = 325.2520.

Butler National Quarterly Data

per share eps CPI Adj_EPS
201604 0.010 239.261 0.014
201607 0.004 240.628 0.005
201610 0.010 241.729 0.013
201701 0.000 242.839 0.000
201704 0.010 244.524 0.013
201707 0.004 244.786 0.005
201710 0.001 246.663 0.001
201801 0.000 247.867 0.000
201804 0.000 250.546 0.000
201807 0.010 252.006 0.013
201810 0.030 252.885 0.039
201901 0.020 251.712 0.026
201904 0.000 255.548 0.000
201907 0.030 256.571 0.038
201910 0.030 257.346 0.038
202001 0.020 257.971 0.025
202004 -0.020 256.389 -0.025
202007 0.000 259.101 0.000
202010 0.004 260.388 0.005
202101 0.010 261.582 0.012
202104 0.010 267.054 0.012
202107 0.040 273.003 0.048
202110 0.040 276.589 0.047
202201 0.040 281.148 0.046
202204 0.020 289.109 0.023
202207 0.010 296.276 0.011
202210 0.030 298.012 0.033
202301 0.030 299.170 0.033
202304 -0.010 303.363 -0.011
202307 0.010 305.691 0.011
202310 0.070 307.671 0.074
202401 0.030 308.417 0.032
202404 0.070 313.548 0.073
202407 0.030 314.540 0.031
202410 0.050 315.664 0.052
202501 0.050 317.671 0.051
202504 0.050 320.795 0.051
202507 0.060 323.048 0.060
202510 0.090 0.000
202601 0.100 325.252 0.100

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $0.12 mean?
Butler National (BUKS) has a E10 of $0.12 as of Jan. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Butler National and its competitors.
Is Butler National's E10 too high?
Butler National's current E10 is $0.12. Overall, Butler National has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Butler National's E10 compare to POWW and FJET?
Butler National's E10 of $0.12 can be compared against companies in the Aerospace & Defense industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for an Aerospace & Defense company?
A good E10 depends on the Aerospace & Defense industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Butler National and its competitors. Butler National's current E10 is $0.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Butler National stock overvalued right now?
Based on GuruFocus' analysis, Butler National (BUKS) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.60, compared to a current price of $4.21 — trading 163.1% above its estimated fair value. The current E10 is $0.12. Butler National's overall GF Score™ is 69/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Butler National (BUKS), the current E10 is $0.12 as of Jan. 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 Butler National (BUKS) Overvalued in 2026?

Based on GuruFocus' analysis, Butler National stock appears to be overvalued. The current stock price of $4.21 is trading 163.1% above its estimated GF Value™ of $1.60. GuruFocus considers Butler National to be Significantly Overvalued.

Key valuation signals for BUKS:

  • E10: $0.12
  • GF Value™: $1.60 vs. price of $4.21 (163.1% above fair value)
  • GF Score™: 69/100 with 4 warning signs

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


Butler National Business Description

Address One Aero Plaza, New Century, KS, USA, 66031
Butler National Corp is involved in the design, engineering, manufacturing, selling, integrating, installing, repairing, modifying, overhauling, servicing, and distributing portfolio of aerostructures, aircraft components, avionics, accessories, subassemblies, and systems (Aerospace Products). The group serves the aviation industry, including owners of aircraft and contractors involved with private, commercial, business, and government aircraft operations. It also serves commercial weapon manufacturers and suppliers to governments and their agencies. The company has two operating segments: Professional Services and Aerospace Products. Its main source of revenue comes from the Aerospace Products segment. It operates in North America, Europe, Asia, Australia, and other geographical regions.
69GF Score

Get the complete analysis for BUKS

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$4.21
Price
$1.60
GF Value