BUKS (Butler National) FCF Margin %: -1.90% (As of Apr. 2026)

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BUKS Butler National Corp BUKS
74 GF Score
Price $4.19
GF Value $1.89
Valuation Significantly Overvalued
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What is Butler National FCF Margin %?

Butler National BUKS -1.41% 74 FCF Margin % is -1.90% as of Apr. 2026. GuruFocus rates BUKS with a GF Score™ of 74/100 and a GF Value™ of $1.89 (Significantly Overvalued). Among 348 Aerospace & Defense companies, Butler National ranks better than 91.67% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Butler National's Free Cash Flow for the three months ended in Apr. 2026 was $-0.53 Mil. Butler National's Revenue for the three months ended in Apr. 2026 was $27.68 Mil. Therefore, Butler National's FCF Margin % for the quarter that ended in Apr. 2026 was -1.90%.

As of today, Butler National's current FCF Yield % is 7.20%.

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

BUKS' s FCF Margin % Range Over the Past 10 Years
Min: -1.53   Med: 9.39   Max: 19.64
Current: 19.64


During the past 13 years, the highest FCF Margin % of Butler National was 19.64%. The lowest was -1.53%. And the median was 9.39%.

BUKS's FCF Margin % is ranked better than
91.67% of 348 companies
in the Aerospace & Defense industry
Industry Median: 1 vs BUKS: 19.64


Butler National FCF Margin % Related Terms


Butler National FCF Margin % Historical Data

* Premium members only.

The historical data trend for Butler National's FCF 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.

Butler National FCF Margin % Chart

Butler National Annual Data
Trend Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25 Apr26
FCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.24 19.19 -1.53 12.08 19.64

Butler National Quarterly Data
Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26
FCF 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 -15.24 65.89 -11.50 34.11 -1.90

BUKS vs SPCE, MRLN, ISSC: FCF Margin % Comparison

For the Aerospace & Defense subindustry, Butler National's FCF Margin %, along with its competitors' market caps and FCF 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.


Butler National FCF Margin % vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Butler National's FCF Margin % distribution charts can be found below:

* The bar in red indicates where Butler National's FCF Margin % falls into.


BUKS
74GF Score
Butler National Corp BUKS
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Butler National FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

Butler National's FCF Margin for the fiscal year that ended in Apr. 2026 is calculated as

FCF Margin=Free Cash Flow (A: Apr. 2026 )/Revenue (A: Apr. 2026 )
=19.241/97.967
=19.64 %

Butler National's FCF Margin for the quarter that ended in Apr. 2026 is calculated as

FCF Margin=Free Cash Flow (Q: Apr. 2026 )/Revenue (Q: Apr. 2026 )
=-0.526/27.678
=-1.90 %

* 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 FCF Margin % →
What does a FCF Margin % of -1.90% mean?
Butler National (BUKS) has a FCF Margin % of -1.90% as of Apr. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Butler National and its competitors. According to the industry distribution chart, Butler National ranks #29 out of 348 companies in the Aerospace & Defense industry, placing it in the top 8.3%.
Is Butler National's FCF Margin % too high?
Butler National's current FCF Margin % is -1.90%. Based on the distribution chart, Butler National ranks #29 out of 348 companies in the Aerospace & Defense industry, which is in the top quartile — a strong position relative to peers. Overall, Butler National has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Butler National's FCF Margin % compare to SPCE and MRLN?
According to the Aerospace & Defense industry distribution chart, Butler National ranks #29 out of 348 companies for FCF Margin %. This places Butler National in the top 8% of its industry — outperforming the majority of peers. The industry median FCF Margin % is 1.00. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for an Aerospace & Defense company?
The median FCF Margin % among Aerospace & Defense companies is 1.00, based on 348 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Butler National and its competitors. For the Aerospace & Defense industry, the median FCF Margin % is 1.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Butler National's current FCF Margin % is -1.90%. 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 $1.89, compared to a current price of $4.19 — trading 121.7% above its estimated fair value. The current FCF Margin % is -1.90%. Butler National's overall GF Score™ is 74/100. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Butler National (BUKS), the current FCF Margin % is -1.90% as of Apr. 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 $4.19 is trading 121.7% above its estimated GF Value™ of $1.89. GuruFocus considers Butler National to be Significantly Overvalued.

Key valuation signals for BUKS:

  • FCF Margin %: -1.90%
  • GF Value™: $1.89 vs. price of $4.19 (121.7% above fair value)
  • GF Score™: 74/100

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.
74GF Score

Get the complete analysis for BUKS

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

$4.19
Price
$1.89
GF Value