ADVOF (Adtran Networks SE) Free Cash Flow: $18.8 Mil (TTM As of Dec. 2025)

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ADVOF Adtran Networks SE ADVOF
55 GF Score
Price $24.19
GF Value $20.94
! 4 Warning Signs
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What is Adtran Networks SE Free Cash Flow?

Adtran Networks SE ADVOF 55 Free Cash Flow is $18.8 Mil as of Dec. 2025. GuruFocus rates ADVOF with a GF Score™ of 55/100 and a GF Value™ of $20.94. The stock has 4 warning signs investors should review.

Adtran Networks SE's total free cash flow for the months ended in Dec. 2025 was $17.2 Mil. Its total free cash flow for the trailing twelve months (TTM) ended in Dec. 2025 was $18.8 Mil.

Adtran Networks SE's Free Cash Flow per Share for the months ended in Dec. 2025 was $0.33. Its free cash flow per share for the trailing twelve months (TTM) ended in Dec. 2025 was $0.36.

During the past 12 months, the average Free Cash Flow per Share Growth Rate of Adtran Networks SE was 2700.00% 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 Free Cash Flow Growth Rate using Free Cash Flow per Share data.

During the past 13 years, Adtran Networks SE's highest 3-Year average Free Cash Flow per Share Growth Rate was 103.40% per year. The lowest was -78.70% per year. And the median was 4.40% per year.


Adtran Networks SE  (OTCPK:ADVOF) Free Cash Flow Explanation

Free Cash Flow is very close to Warren Buffett's definition of Owner's Earnings, except that in Warren Buffett's Owner's Earnings, the spending for Property, Plant, and Equipment is only for maintenance (replacement), while in the Free Cash Flow calculation, the cost of new Property, Plant, and Equipment due to business expansion is also deducted. There, Free Cash Flow is more conservative than Owner's Earnings.

In Don Yacktman's calculation of forward rate of return, he uses Free Cash Flow for the calculation. Yacktman explained the forward rate of return concept in detail in his interview with GuruFocus. Yacktman defines forward rate of return as the normalized free cash flow yield plus real growth plus inflation.

This is what Yacktman said in his March 2012 interview - when the S&P 500 was at 1400:

If the business is stable, this calculation is fairly straightforward. For instance, on the S&P 500 we would normalize earnings. We would then calculate what percentage of those earnings are not reinvested in the underlying businesses and are therefore free. Historically, for the S&P 500, this has been just under 50% of earnings. Currently, we expect the S&P to earn about 70 on a normalized basis, a number which is far below reported earnings due to our adjusting for record high profit margins. $70 X ½ / 1400 gives you a normalized free cash flow yield of approximately 2.5%.

The historical real growth rate of the S&P 500 (companies) is about 1.5%. Assuming an inflation rate of 2.5%, the forward rate of return on an investment in the S&P 500 is about 6.5% today (2.5% free cash flow yield plus 1.5% real growth plus 2.5% inflation).

For the growth part of the Forward Rate of Return calculation, GuruFocus uses the 5-year average growth rate of EBITDA per share as the growth rate, and the growth rate is always capped at 20%. For the Free Cash Flow we use per share data averaged over five years. The reason we use five years is because research shows that five years is the length of the typical business cycle.

Therefore, as of Dec25, Adtran Networks SE's Forward Rate of Return (Yacktman) % is

Forward Rate of Return (Yacktman) % (Dec25)=Normalized Free Cash Flow/Price+5-Year EBITDA Growth Rate
=0.15366667/24.19+-0.15
=-14.36 %

* 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.


Be Aware

Free Cash Flow within a report period can be affected by management's decisions of capital spending. Therefore, it is important to look at long term when it comes to Free Cash Flow.


Adtran Networks SE Free Cash Flow Related Terms


Adtran Networks SE Free Cash Flow Historical Data

* Premium members only.

The historical data trend for Adtran Networks SE's Free Cash Flow 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.

Adtran Networks SE Free Cash Flow Chart

Adtran Networks SE Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Free Cash Flow
Get a 7-Day Free Trial Premium Member Only Premium Member Only 66.64 -61.78 -24.91 0.58 18.80

Adtran Networks SE Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Free Cash Flow 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 -13.43 19.82 -18.71 1.56 17.21
ADVOF
55GF Score
Adtran Networks SE ADVOF
Free Cash Flow is just one metric. See GF Score™, valuation, warning signs, and more.
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Adtran Networks SE Free Cash Flow Calculation

Free Cash Flow is considered one of the most important parameters to measure a company's earnings power by value investors because it is not subject to estimates of Depreciation, Depletion and Amortization (DDA). However, when we look at the Free Cash Flow, we should look from a long term perspective, because any year's Free Cash Flow can be drastically affected by the spending on Property, Plant, & Equipment (PPE) of the business in that year. Over the long term, Free Cash Flow should give pretty good picture on the real earnings power of the company.

Adtran Networks SE's Free Cash Flow for the fiscal year that ended in Dec. 2025 is calculated as

Free Cash Flow (A: Dec. 2025 )=Cash Flow from Operations+Capital Expenditure
=96.344+-77.544
=18.8

Adtran Networks SE's Free Cash Flow for the quarter that ended in Dec. 2025 is calculated as

Free Cash Flow (Q: Dec. 2025 )=Cash Flow from Operations+Capital Expenditure
=58.055+-40.841
=17.2

Free Cash Flow for the trailing twelve months (TTM) ended in Dec. 2025 adds up the semi-annually data reported by the company within the most recent 12 months, which was $18.8 Mil.

* 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 Free Cash Flow →
What does a Free Cash Flow of $18.8 Mil mean?
Adtran Networks SE (ADVOF) has a Free Cash Flow of $18.8 Mil as of Dec. 2025. Free cash flow represents the total amount of cash a company has on hand following operating and capital expenditures. View historial data for Adtran Networks SE and its competitors.
Is Adtran Networks SE's Free Cash Flow too high?
Adtran Networks SE's current Free Cash Flow is $18.8 Mil. Overall, Adtran Networks SE has a GF Score™ of 55/100, reflecting its overall financial health beyond just this single metric.
How does Adtran Networks SE's Free Cash Flow compare to CSCO and CIEN?
Adtran Networks SE's Free Cash Flow of $18.8 Mil can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Free Cash Flow for a Hardware company?
A good Free Cash Flow depends on the Hardware industry context. However, Free Cash Flow 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 Free Cash Flow mean?
A high Free Cash Flow can signal that a stock is expensive relative to its fundamentals. Free cash flow represents the total amount of cash a company has on hand following operating and capital expenditures. View historial data for Adtran Networks SE and its competitors. Adtran Networks SE's current Free Cash Flow is $18.8 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Adtran Networks SE stock overvalued right now?
Adtran Networks SE (ADVOF) has a current Free Cash Flow of $18.8 Mil. The stock's GF Value™ is $20.94, compared to a current price of $24.19 — trading 15.5% above its estimated fair value. The current Free Cash Flow is $18.8 Mil. Adtran Networks SE's overall GF Score™ is 55/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Free Cash Flow calculated?
Free Cash Flow is calculated from a company's financial statements. For Adtran Networks SE (ADVOF), the current Free Cash Flow is $18.8 Mil as of Dec. 2025. 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 Adtran Networks SE (ADVOF) Overvalued in 2026?

Based on GuruFocus' analysis, Adtran Networks SE stock appears to be overvalued. The current stock price of $24.19 is trading 15.5% above its estimated GF Value™ of $20.94.

Key valuation signals for ADVOF:

  • Free Cash Flow: $18.8 Mil
  • GF Value™: $20.94 vs. price of $24.19 (15.5% above fair value)
  • GF Score™: 55/100 with 4 warning signs

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


Adtran Networks SE Business Description

Other Exchanges 0NOL:UKADV:Germany
Address 901 Explorer Boulevard, Huntsville, AL, USA, 35806-2807
Adtran Networks SE develops, manufactures, and sells optical and Ethernet-based networking solutions to telecommunications carriers and enterprises to deliver data, storage, voice, and video services. Company segment includes: Network Solutions; and Services and Support,These systems are used by telecommunications service providers, private companies, universities, and government agencies. Some of its product categories are Open optical transport, Packet edge and aggregation, Disaggregated networking, Network virtualization, Network infrastructure assurance, and Automated network management. ADVA's geographical segments are United States, United Kingdom, Germany and Other international generating key revenue from United States.
55GF Score

Get the complete analysis for ADVOF

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

$24.19
Price
$20.94
GF Value