ADTN (Adtran Holdings) Cyclically Adjusted FCF per Share: $-0.19 (As of Jun. 2026)

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ADTN Adtran Holdings Inc ADTN
69 GF Score
Price $8.40
GF Value $9.35
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Adtran Holdings Cyclically Adjusted FCF per Share?

Adtran Holdings ADTN +4.09% 69 Cyclically Adjusted FCF per Share is $-0.19 as of Jun. 2026. GuruFocus rates ADTN with a GF Score™ of 69/100 and a GF Value™ of $9.35 (Modestly Undervalued). The stock has 5 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

Adtran Holdings's adjusted free cash flow per share for the three months ended in Jun. 2026 was $0.107. Add all the adjusted free cash flow per share for the past 10 years together and divide the count will get our Cyclically Adjusted FCF per Share, which is $-0.19 for the trailing ten years ended in Jun. 2026.

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 Cyclically Adjusted FCF Growth Rate using Cyclically Adjusted FCF per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted FCF Growth Rate of Adtran Holdings was 31.40% per year. The lowest was -51.90% per year. And the median was 0.30% per year.

As of today (2026-08-16), Adtran Holdings's current stock price is $8.40. Adtran Holdings's Cyclically Adjusted FCF per Share for the quarter that ended in Jun. 2026 was $-0.19. Adtran Holdings's Cyclically Adjusted Price-to-FCF of today is .

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of Adtran Holdings was 248.13. The lowest was 8.06. And the median was 18.62.


Adtran Holdings  (NAS:ADTN) Cyclically Adjusted FCF per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted FCF per Share may underestimate the company's free cash flow. Cyclically Adjusted Price-to-FCF can seem to be too high even the actual Price-to-Free-Cash-Flow is low.

For the Cyclically Adjusted Price-to-FCF, the free cash flow per share of the past 10 years are inflation-adjusted and averaged. The result is used for P/FCF calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted Price-to-FCF is also called CAPFCF Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted free cash flow per share of a company over the past 10 years.

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of Adtran Holdings was 248.13. The lowest was 8.06. And the median was 18.62.


Be Aware

Cyclically Adjusted Price-to-FCF works better for cyclical companies. It gives you a better idea on the company's real free cash flow value.


Adtran Holdings Cyclically Adjusted FCF per Share Related Terms


Adtran Holdings Cyclically Adjusted FCF per Share Historical Data

* Premium members only.

The historical data trend for Adtran Holdings's Cyclically Adjusted FCF per Share 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 Holdings Cyclically Adjusted FCF per Share Chart

Adtran Holdings Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted FCF per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.30 0.08 -0.15 -0.21 -0.15

Adtran Holdings Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted FCF per Share 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 -0.20 -0.21 -0.15 -0.20 -0.19

ADTN vs GILT, FEIM, NTGR: Cyclically Adjusted FCF per Share Comparison

For the Communication Equipment subindustry, Adtran Holdings's Cyclically Adjusted Price-to-FCF, along with its competitors' market caps and Cyclically Adjusted Price-to-FCF 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.


Adtran Holdings Cyclically Adjusted Price-to-FCF vs Hardware Industry

For the Hardware industry and Technology sector, Adtran Holdings's Cyclically Adjusted Price-to-FCF distribution charts can be found below:

* The bar in red indicates where Adtran Holdings's Cyclically Adjusted Price-to-FCF falls into.


ADTN
69GF Score
Adtran Holdings Inc ADTN
Cyclically Adjusted FCF per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Adtran Holdings Cyclically Adjusted FCF per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

What is Cyclically Adjusted FCF per Share? How do we calculate Cyclically Adjusted FCF per Share?

Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted FCF per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the free cash flow per share from 2001 through 2010.

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

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, Adtran Holdings's adjusted Free Cash Flow per Share data for the three months ended in Jun. 2026 was:

Adj_FreeCashFlowPerShare= Free Cash Flow per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.107/333.9520*333.9520
=0.107

Current CPI (Jun. 2026) = 333.9520.

Adtran Holdings Quarterly Data

Free Cash Flow per Share CPI Adj_FreeCashFlowPerShare
201609 0.025 241.428 0.035
201612 0.111 241.432 0.154
201703 0.106 243.801 0.145
201706 0.163 244.955 0.222
201709 -0.069 246.819 -0.093
201712 -1.365 246.524 -1.849
201803 0.918 249.554 1.228
201806 0.093 251.989 0.123
201809 -0.120 252.439 -0.159
201812 0.091 251.233 0.121
201903 0.164 254.202 0.215
201906 -0.024 256.143 -0.031
201909 -0.055 256.759 -0.072
201912 -0.335 256.974 -0.435
202003 -0.030 258.115 -0.039
202006 -0.001 257.797 -0.001
202009 -0.184 260.280 -0.236
202012 -0.254 260.474 -0.326
202103 0.203 264.877 0.256
202106 0.123 271.696 0.151
202109 0.192 274.310 0.234
202112 -0.572 278.802 -0.685
202203 0.069 287.504 0.080
202206 -0.253 296.311 -0.285
202209 -0.598 296.808 -0.673
202212 -0.108 296.797 -0.122
202303 -0.362 301.836 -0.401
202306 -0.356 305.109 -0.390
202309 -0.086 307.789 -0.093
202312 -0.329 306.746 -0.358
202403 0.295 312.332 0.315
202406 0.049 314.175 0.052
202409 0.294 315.301 0.311
202412 -0.150 315.605 -0.159
202503 0.308 319.799 0.322
202506 0.230 322.561 0.238
202509 -0.061 324.800 -0.063
202512 0.282 324.054 0.291
202603 -0.041 330.213 -0.041
202606 0.107 333.952 0.107

Add all the adjusted free cash flow per share together and divide 10 will get our Cyclically Adjusted FCF per Share.

What does a Cyclically Adjusted FCF per Share of $-0.19 mean?
Adtran Holdings (ADTN) has a Cyclically Adjusted FCF per Share of $-0.19 as of Jun. 2026. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Adtran Holdings and its competitors.
Is Adtran Holdings' Cyclically Adjusted FCF per Share too high?
Adtran Holdings' current Cyclically Adjusted FCF per Share is $-0.19. Overall, Adtran Holdings has a GF Score™ of 69/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Adtran Holdings' Cyclically Adjusted FCF per Share compare to GILT and FEIM?
Adtran Holdings' Cyclically Adjusted FCF per Share of $-0.19 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 Cyclically Adjusted FCF per Share for a Hardware company?
A good Cyclically Adjusted FCF per Share depends on the Hardware industry context. However, Cyclically Adjusted FCF per Share 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 Cyclically Adjusted FCF per Share mean?
A high Cyclically Adjusted FCF per Share can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Adtran Holdings and its competitors. Adtran Holdings's current Cyclically Adjusted FCF per Share is $-0.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Adtran Holdings stock overvalued right now?
Based on GuruFocus' analysis, Adtran Holdings (ADTN) is currently considered Modestly Undervalued. The stock's GF Value™ is $9.35, compared to a current price of $8.40 — trading 10.2% below its estimated fair value. The current Cyclically Adjusted FCF per Share is $-0.19. Adtran Holdings' overall GF Score™ is 69/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted FCF per Share calculated?
Cyclically Adjusted FCF per Share is calculated from a company's financial statements. For Adtran Holdings (ADTN), the current Cyclically Adjusted FCF per Share is $-0.19 as of Jun. 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 Adtran Holdings (ADTN) Overvalued in 2026?

Based on GuruFocus' analysis, Adtran Holdings stock appears to be undervalued. The current stock price of $8.40 is trading 10.2% below its estimated GF Value™ of $9.35. GuruFocus considers Adtran Holdings to be Modestly Undervalued.

Key valuation signals for ADTN:

  • Cyclically Adjusted FCF per Share: $-0.19
  • GF Value™: $9.35 vs. price of $8.40 (10.2% below fair value)
  • GF Score™: 69/100 with 5 warning signs

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


Adtran Holdings Business Description

Other Exchanges QH9:GermanyADTN:Austria
Address 901 Explorer Boulevard, Huntsville, AL, USA, 35806-2807
Adtran Holdings Inc is a provider of networking and communications platforms, software, and services focused on the broadband access market. It operates under two reportable segments: Network Solutions segment, which includes hardware and software products that enable a digital future that supports the company's Subscriber, Access & Aggregation, and Optical Networking Solutions; and Services & Support segment, which includes network design, implementation, maintenance and cloud-hosted services supporting the company's Subscriber, Access & Aggregation, and Optical Networking Solutions. It generates the majority of its revenue from the Network Solutions segment.
69GF Score

Get the complete analysis for ADTN

Cyclically Adjusted FCF per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$8.40
Price
$9.35
GF Value