Tearsheet

Adtran (ADTN)


Market Price (5/13/2026): $15.0 | Market Cap: $1.2 Bil
Sector: Information Technology | Industry: Communications Equipment

Adtran (ADTN)


Market Price (5/13/2026): $15.0
Market Cap: $1.2 Bil
Sector: Information Technology
Industry: Communications Equipment

Investment Highlights Why It Matters Detailed financial logic regarding cash flow yields vs trend-riding momentum.

0

Megatrend and thematic drivers
Megatrends include 5G & Advanced Connectivity, and Smart Grids & Grid Modernization. Themes include Telecom Infrastructure, Network Equipment, Show more.

Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 14%

Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -5.3 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -0.5%

Weak revenue growth
Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -1.1%

Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 76%

Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -7.1%

Key risks
ADTN key risks include [1] significant financial distress, Show more.

0 Megatrend and thematic drivers
Megatrends include 5G & Advanced Connectivity, and Smart Grids & Grid Modernization. Themes include Telecom Infrastructure, Network Equipment, Show more.
1 Meaningful short interest
Short Interest % of Basic SharesShort Interest % of Basic Shares = (Short Interest Quantity) / (Basic Shares Outstanding). A high fraction of short interest can indicate potential risk of a short squeeze. is 14%
2 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -5.3 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -0.5%
3 Weak revenue growth
Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -1.1%
4 Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 76%
5 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -7.1%
6 Key risks
ADTN key risks include [1] significant financial distress, Show more.

Valuation, Metrics & Events

Price Chart

Why The Stock Moved

Qualitative Assessment

AI Analysis | Feedback

Adtran (ADTN) stock has gained about 70% since 1/31/2026 because of the following key factors:

1. Adtran significantly surpassed Q1 2026 earnings expectations and provided strong Q2 guidance, signaling robust financial performance. The company reported non-GAAP diluted earnings per share (EPS) of $0.14 for the first quarter of 2026, exceeding analysts' consensus estimates of $0.09 by $0.05. Additionally, quarterly revenue grew 15.5% year-over-year to $286.09 million, surpassing the consensus estimate of $285.48 million. For the second quarter of 2026, Adtran projected revenue within the range of $283.0 million to $303.0 million, with a non-GAAP operating margin forecast of 5.0% to 9.0%.

2. The company benefited from key market trends, including U.S. broadband infrastructure funding and European vendor displacement initiatives. Adtran highlighted the continued momentum in U.S. broadband deployments, driven by Broadband Equity, Access, and Deployment (BEAD) program funds beginning to reach operators in various states. In Europe, the displacement of high-risk vendors is progressing, supported by advancing European Commission legislation such as Cybersecurity Act 2.0.

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Stock Movement Drivers

Fundamental Drivers

The 71.1% change in ADTN stock from 1/31/2026 to 5/13/2026 was primarily driven by a 58.9% change in the company's P/S Multiple.
(LTM values as of)13120265132026Change
Stock Price ($)9.2215.7871.1%
Change Contribution By: 
Total Revenues ($ Mil)1,0351,1228.4%
P/S Multiple0.71.158.9%
Shares Outstanding (Mil)8080-0.6%
Cumulative Contribution71.1%

LTM = Last Twelve Months as of date shown

Market Drivers

1/31/2026 to 5/13/2026
ReturnCorrelation
ADTN71.0% 
Market (SPY)7.6%28.0%
Sector (XLK)23.1%29.1%

Fundamental Drivers

The 51.4% change in ADTN stock from 10/31/2025 to 5/13/2026 was primarily driven by a 33.7% change in the company's P/S Multiple.
(LTM values as of)103120255132026Change
Stock Price ($)10.4215.7851.4%
Change Contribution By: 
Total Revenues ($ Mil)9831,12214.1%
P/S Multiple0.81.133.7%
Shares Outstanding (Mil)8080-0.7%
Cumulative Contribution51.4%

LTM = Last Twelve Months as of date shown

Market Drivers

10/31/2025 to 5/13/2026
ReturnCorrelation
ADTN51.3% 
Market (SPY)9.5%35.4%
Sector (XLK)18.0%38.5%

Fundamental Drivers

The 106.0% change in ADTN stock from 4/30/2025 to 5/13/2026 was primarily driven by a 72.0% change in the company's P/S Multiple.
(LTM values as of)43020255132026Change
Stock Price ($)7.6615.78106.0%
Change Contribution By: 
Total Revenues ($ Mil)9231,12221.6%
P/S Multiple0.71.172.0%
Shares Outstanding (Mil)7980-1.5%
Cumulative Contribution106.0%

LTM = Last Twelve Months as of date shown

Market Drivers

4/30/2025 to 5/13/2026
ReturnCorrelation
ADTN105.9% 
Market (SPY)35.4%38.8%
Sector (XLK)69.4%41.0%

Fundamental Drivers

The 76.8% change in ADTN stock from 4/30/2023 to 5/13/2026 was primarily driven by a 66.7% change in the company's P/S Multiple.
(LTM values as of)43020235132026Change
Stock Price ($)8.9315.7876.8%
Change Contribution By: 
Total Revenues ($ Mil)1,0261,1229.4%
P/S Multiple0.71.166.7%
Shares Outstanding (Mil)7880-3.1%
Cumulative Contribution76.8%

LTM = Last Twelve Months as of date shown

Market Drivers

4/30/2023 to 5/13/2026
ReturnCorrelation
ADTN76.7% 
Market (SPY)85.5%39.7%
Sector (XLK)139.4%37.7%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
ADTN Return27%2%-60%13%4%73%7%
Peers Return69%-27%-9%33%107%64%405%
S&P 500 Return27%-19%24%23%16%8%97%

Monthly Win Rates [3]
ADTN Win Rate42%17%25%42%67%80% 
Peers Win Rate57%42%53%58%58%60% 
S&P 500 Win Rate75%42%67%75%67%60% 

Max Drawdowns [4]
ADTN Max Drawdown-0%-3%-73%-40%-14%-0% 
Peers Max Drawdown-12%-54%-30%-23%-33%-17% 
S&P 500 Max Drawdown-1%-25%-1%-2%-15%-7% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: CIEN, CALX, EXTR, RBBN, LITE. See ADTN Returns vs. Peers.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2026 data is for the year up to 5/13/2026 (YTD)

How Low Can It Go

EventADTNS&P 500
2025 US Tariff Shock
  % Loss-38.7%-18.8%
  % Gain to Breakeven63.1%23.1%
  Time to Breakeven331 days79 days
2024 Yen Carry Trade Unwind
  % Loss-10.7%-7.8%
  % Gain to Breakeven12.0%8.5%
  Time to Breakeven10 days18 days
Summer-Fall 2023 Five Percent Yield Shock
  % Loss-50.1%-9.5%
  % Gain to Breakeven100.6%10.5%
  Time to Breakeven426 days24 days
2023 SVB Regional Banking Crisis
  % Loss-52.8%-6.7%
  % Gain to Breakeven111.8%7.1%
  Time to Breakeven1075 days31 days
2022 Inflation Shock & Fed Tightening
  % Loss-10.8%-24.5%
  % Gain to Breakeven12.1%32.4%
  Time to Breakeven19 days427 days
2020 COVID-19 Crash
  % Loss-40.5%-33.7%
  % Gain to Breakeven68.2%50.9%
  Time to Breakeven20 days140 days

Compare to CIEN, CALX, EXTR, RBBN, LITE

In The Past

Adtran's stock fell -38.7% during the 2025 US Tariff Shock. Such a loss loss requires a 63.1% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

EventADTNS&P 500
2025 US Tariff Shock
  % Loss-38.7%-18.8%
  % Gain to Breakeven63.1%23.1%
  Time to Breakeven331 days79 days
Summer-Fall 2023 Five Percent Yield Shock
  % Loss-50.1%-9.5%
  % Gain to Breakeven100.6%10.5%
  Time to Breakeven426 days24 days
2023 SVB Regional Banking Crisis
  % Loss-52.8%-6.7%
  % Gain to Breakeven111.8%7.1%
  Time to Breakeven1075 days31 days
2020 COVID-19 Crash
  % Loss-40.5%-33.7%
  % Gain to Breakeven68.2%50.9%
  Time to Breakeven20 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-41.7%-19.2%
  % Gain to Breakeven71.6%23.7%
  Time to Breakeven757 days105 days
2014-2016 Oil Price Collapse
  % Loss-36.7%-6.8%
  % Gain to Breakeven58.1%7.3%
  Time to Breakeven442 days15 days
2011 US Debt Ceiling Crisis & European Contagion
  % Loss-26.6%-17.9%
  % Gain to Breakeven36.3%21.8%
  Time to Breakeven114 days123 days
2008-2009 Global Financial Crisis
  % Loss-44.8%-53.4%
  % Gain to Breakeven81.3%114.4%
  Time to Breakeven224 days1085 days

Compare to CIEN, CALX, EXTR, RBBN, LITE

In The Past

Adtran's stock fell -38.7% during the 2025 US Tariff Shock. Such a loss loss requires a 63.1% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Adtran (ADTN)

ADTRAN Holdings, Inc., through its subsidiaries, provides end-to-end fiber networking solutions for communications service provider, enterprises, and government customers in the United States, Germany, the United Kingdom, Mexico, and internationally. It operates through two segments, Network Solutions, and Services & Support. The company offers fiber access and fiber to the node platforms; transceivers, cables, and other miscellaneous materials; passive optical network optical line terminals; fiber to the distribution point Gfast distribution point units; cabinet and outside plant enclosures and services; packet optical transports; fixed wireless access platforms; and network management and subscriber services, and control and orchestration software. It also provides broadband customer premises solutions, ethernet switches and routers, residential gateways, cloud-based software-as-a-service management platforms, virtual wireless local area networks, Internet of Things gateways, pre-sale and post-sale technical support, and multi-gigabit mesh Wi-Fi gateways. In addition, the company offers time division multiplexed and asynchronous transfer mode-based aggregation systems and customer devices; and high-bit-rate and asymmetric digital subscriber line, and other technologies. Further, it provides other access and aggregation, subscriber and experience, and traditional and other products, software, and services. Additionally, the company engages in the provision of planning, engineering, program management, maintenance, installation, and commissioning services to implement customer network solutions; and customer devices solutions into consumer, small business, and enterprise locations. ADTRAN Holdings, Inc. is headquartered in Huntsville, Alabama.

AI Analysis | Feedback

Adtran is like a specialized Cisco for the fiber-optic networks that internet service providers build and manage.

Alternatively, Adtran is like CommScope (Arris) for fiber internet equipment, providing the hardware and software that enable high-speed connections from the network to your home or business.

AI Analysis | Feedback

Major Products and Services of Adtran (ADTN)

  • Fiber Access Platforms: Provide end-to-end fiber networking solutions, including fiber access, fiber to the node platforms, passive optical network optical line terminals (OLTs), and Gfast distribution point units.
  • Network Transport Equipment: Includes packet optical transports and fixed wireless access platforms for data transmission.
  • Customer Premises Equipment (CPE): Offers broadband customer premises solutions, Ethernet switches, routers, residential gateways, and multi-gigabit mesh Wi-Fi gateways.
  • IoT & WLAN Gateways: Provides virtual wireless local area networks (WLANs) and Internet of Things (IoT) gateways.
  • Legacy Access & Aggregation Systems: Supports time division multiplexed (TDM) and asynchronous transfer mode (ATM)-based aggregation systems and various DSL technologies.
  • Network Management Software: Offers network management, subscriber services, and control and orchestration software.
  • Cloud-based SaaS Platforms: Provides cloud-based software-as-a-service management platforms.
  • Technical Support Services: Delivers pre-sale and post-sale technical support for its product offerings.
  • Network Deployment & Integration: Encompasses planning, engineering, program management, maintenance, installation, and commissioning services for customer network solutions.
  • Customer Device Solutions: Provides services for implementing customer devices into consumer, small business, and enterprise locations.

AI Analysis | Feedback

Adtran (ADTN) primarily sells its end-to-end fiber networking solutions to other companies and organizations. Based on the provided background, its major customer categories are:

  • Communications Service Providers
  • Enterprises
  • Government customers

The background information does not provide specific names of individual customer companies or their public stock symbols.

AI Analysis | Feedback

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Tom Stanton, Chairman of the Board and Chief Executive Officer

Tom Stanton joined Adtran in 1995 and has served as Chief Executive Officer since 2005 and Chairman of the Board since 2007. He is also the Chief Executive Officer of Adtran Networks, SE, which was formerly Adva Optical Networks, SE, and was acquired by Adtran in 2022. Prior to his time at Adtran, he held executive roles at Transcrypt International and several senior management positions with E. F. Johnson Company.

Timothy Santo, Senior Vice President, Finance, Chief Financial Officer, Treasurer and Principal Accounting Officer

Timothy Santo was appointed CFO, Principal Accounting Officer, and Treasurer of ADTRAN Holdings, Inc., effective March 10, 2025. He brings over 25 years of international experience in finance, accounting, and operational leadership. Before joining Adtran, Mr. Santo served as Executive Vice President and CFO at Conn's HomePlus, where he oversaw financial strategy, including a $1 billion acquisition and capital restructuring. He was also Senior Vice President and Global Controller at PRA Group, managing the international accounting, financial reporting, and compliance for a $3 billion portfolio. Earlier in his career, he held leadership roles at Grant Thornton and GE, and started at PwC where he earned his Certified Public Accountant certification.

Christoph Glingener, Chief Technology Officer

Christoph Glingener holds a master's degree in Electrical Engineering and a Ph.D. in Optical Communications from the Technical University of Dortmund.

James Denson Wilson, Jr., Chief Revenue Officer

As Chief Revenue Officer, James Wilson is responsible for the full funnel revenue value chain, including the company's sales strategy, customer relationships, and revenue performance.

AI Analysis | Feedback

The key risks to ADTRAN Holdings, Inc. (ADTN) include significant financial burdens and risks associated with its indebtedness and contractual obligations, a heavy reliance on a limited number of major customers, and intense competition within its market.

Financial Risks and Obligations

ADTRAN faces substantial financial risks primarily stemming from its considerable indebtedness and ongoing payment obligations. The company requires a significant amount of cash to service its debt and meet its payment obligations to Adtran Networks shareholders under the Domination and Profit and Loss Transfer Agreement (DPLTA). The terms of this DPLTA could have a material adverse effect on ADTRAN's financial results and condition. Furthermore, the company is subject to restrictive covenants in its credit agreement that limit operational flexibility, with potential breaches leading to accelerated debt obligations. Analysts have noted a concerning Altman Z-Score of 0.88 for ADTRAN, indicating a significant risk of financial distress or even bankruptcy within two years, as scores below 1.81 suggest such a risk. Additionally, the issuance of $201.3 million in convertible senior notes adds to the financial burden and presents potential refinancing challenges. The company has also been operating at a net loss on a Generally Accepted Accounting Principles (GAAP) basis in the near term, despite some improvements in non-GAAP operating profit.

Dependence on Key Customers and Revenue Fluctuations

ADTRAN's business is heavily dependent on sales to certain customers, meaning the loss of any major customer or a significant project could substantially reduce its revenue and net income. The company has historically experienced, and may continue to experience, significant fluctuations in revenue. These fluctuations are often exacerbated by the lengthy sales and approval processes required by service providers for new products, which can lead to uneven operating results.

Competitive Market Environment

ADTRAN operates in a highly competitive market environment characterized by aggressive pricing and the presence of new entrants. This intense competition could potentially lead to a reduction in ADTRAN's market share and pressure its profit margins. Persistent losses and stiff competition are noted as factors keeping investors cautious.

AI Analysis | Feedback

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AI Analysis | Feedback

Here are the addressable market sizes for Adtran's main products and services:
  • Fiber to the Home (FTTH)/FTTx: The global Fiber to the Home (FTTH) market is projected to grow from USD 27,575 million in 2024 to USD 126,509 million by 2034, reflecting a CAGR of 16.6%. The FTTx networks segment dominated the global optical fiber connectivity market with a 31% share in 2024. The Asia-Pacific region is expected to lead the FTTH market, followed by North America and Europe. North America continues to expand fiber-to-home deployments, with Passive Optical Network (PON) penetration reaching 32% of U.S. households. The global fiber optic connectivity market size was valued at USD 3.78 billion in 2025 and is projected to grow to USD 15.09 billion by 2034, exhibiting a CAGR of 16.64%. North America held the major market share of more than 40% of the global revenue with a market size of USD 1341.18 million in 2025 and is expected to grow at a CAGR of 4.8% from 2025 to 2033.
  • Gigabit Passive Optical Network (GPON) Optical Line Terminals (OLTs) / Passive Optical Network (PON): The global GPON OLT market size was valued at USD 2,760 million in 2024 and is expected to grow to USD 7 billion by 2035 at a CAGR of 8.9%. North America held the majority share of the GPON OLT market, valued at USD 1,200 million in 2024 and projected to reach USD 2,800 million in 2035. The global passive optical network (PON) market size was valued at USD 17.61 billion in 2025 and is projected to grow to USD 60.52 billion by 2034, exhibiting a CAGR of 14.80%. Asia-Pacific leads global PON rollouts with more than 48% market share. The global Gigabit Passive Optical Network (GPON) market size was valued at USD 7.73 billion in 2024 and is expected to reach USD 12.23 billion by 2032, at a CAGR of 5.90%.
  • Gfast Distribution Point Units (DPUs): The global G.Fast chipset market size was USD 5.09 billion in 2024 and is expected to grow at a CAGR of 35.08% from 2024 to 2031. Another estimate indicates the G.Fast Chipset Market size was valued at USD 3.61 billion in 2024 and is expected to reach USD 11 billion by 2032, growing at a CAGR of 15.04%. North America was the largest region in the G.Fast chipset market in 2025. The DPU market is projected to have the fastest CAGR of 15.79% during 2025-2032, driven by growing fiber-to-the-distribution point installations.
  • Packet Optical Transport / Optical Transport Network (OTN) Hardware: The global optical transport network (OTN) hardware market size was valued at USD 19.21 billion in 2023 and is projected to reach USD 32.03 billion by 2030, growing at a CAGR of 7.9%. The global optical transport network market size is USD 29.39 billion in 2026 and is forecast to reach USD 44.03 billion by 2031, advancing at an 8.42% CAGR. North America held 24.6% of the market share in 2023, while Asia Pacific led the global market with a revenue share of 34.9% in 2023.
  • Fixed Wireless Access (FWA): The global fixed wireless access market was valued at USD 32 billion in 2023 and is projected to reach USD 96.1 billion by 2032, growing at a CAGR of 13.4%. Another report estimates the global fixed wireless access market size at USD 42.61 billion in 2025, projected to grow to USD 164.77 billion by 2034, exhibiting a CAGR of 16.2%. The global 5G fixed wireless access market size is accounted at USD 64.10 billion in 2025 and predicted to increase to approximately USD 1,621.92 billion by 2035, at a CAGR of 38.14%. North America dominated the global fixed wireless access market with a market share of 35.6% in 2025, and held the largest market share in the 5G fixed wireless access market with 36% in 2025.
  • Broadband Customer Premises Solutions (Broadband CPE / Residential Gateways / Home Gateways): The global broadband CPE products market size was valued at USD 12.79 billion in 2024 and is projected to grow to USD 19.1 billion by 2032, exhibiting a CAGR of 6.1%. The global residential gateway market size reached USD 6.5 billion in 2025 and is expected to reach USD 10.4 billion by 2034, exhibiting a growth rate of 5.13%. Another report states the global market for Residential Gateways was valued at US$18.3 billion in 2024 and is projected to reach US$26 billion by 2030, growing at a CAGR of 6%. North America was the largest market for residential gateways, holding approximately 40% of the global share, and was valued at USD 1,617.5 million in 2025. The global home gateway market size is forecasted to grow from approximately USD 6.33 billion in 2025 to nearly USD 11.12 billion by 2035, at a CAGR of 5.8%. North America leads the Home Gateway Market with a 52% market share. The market size of wireless broadband customer premises equipment (CPE) is projected to reach USD 25.59 billion by 2029 with a CAGR of 9.7% from 2025.
  • Network Management and Subscriber Services (Network Management Software/Systems in Telecom): The global telecom network management system market size was valued at USD 10.12 billion in 2024 and is estimated to reach USD 21.66 billion by 2033, exhibiting a CAGR of 8.38%. The Telecom Network Management Systems Market was valued at USD 11,411.36 million in 2025 and is expected to increase to USD 22,809.77 million by 2032, growing at a CAGR of 10.4%. North America currently dominates the market, holding a significant market share of 33.2% in 2024, and accounted for a network management system market share of over 37% in 2023. The global network management system market size was valued at USD 9.1 billion in 2023 and is projected to grow at a CAGR of over 9.4% between 2024 and 2032.

AI Analysis | Feedback

ADTRAN Holdings, Inc. (ADTN) is positioned for future revenue growth over the next 2-3 years, driven by several key factors:

  1. Continued Global Fiber Infrastructure Deployments: Adtran is benefiting from the ongoing worldwide investment in fiber optic networks, particularly in the United States and Europe. The demand for expanded broadband access and multi-gigabit speeds is fueling the deployment of fiber networks, creating a sustained market for Adtran's fiber access solutions. For example, fiber broadband deployments in the US set a record in 2023, passing 9 million homes.
  2. Expansion in Optical Networking Solutions: The company has seen significant growth in its optical networking solutions, driven by cloud providers expanding data center capacity and large enterprises upgrading their optical networks. This segment has shown substantial year-over-year growth and is expected to continue contributing meaningfully to revenue.
  3. Customer Base Expansion and High-Risk Vendor Replacements: Adtran has been actively expanding its customer base, securing new fiber-to-the-home operators primarily in the US regional service provider segment, and winning large new customers in both Europe and the U.S. Additionally, the trend of high-risk vendor replacements in Europe is creating opportunities for Adtran to gain market share.
  4. Growth in Subscriber Solutions and Advanced In-Home Platforms: Increased success in providing in-home platforms, including residential gateways, Optical Network Terminals (ONTs), and multi-gigabit mesh Wi-Fi gateways, is driving revenue. Adtran's cloud-based software-as-a-service management platforms also contribute to this growth as service providers connect more homes and businesses with fiber.
  5. Innovation in AI-Driven Network Management and Orchestration Software: Adtran's strategic focus on software and AI-driven platforms, such as its Mosaic One platform and the ongoing trials for AI-driven automation in Mosaic One Clarity, represents a future growth driver by enhancing network management and subscriber services.

AI Analysis | Feedback

Share Repurchases

ADTRAN Holdings, Inc. did not report significant share repurchases of its common stock (ADTN) during the last 3-5 years. The company did purchase $46.6 million worth of ADTRAN Networks stock in calendar year 2025, including $27.2 million in the fourth quarter, to reduce minority interest.

Share Issuance

  • ADTRAN Holdings, Inc. experienced a significant increase in shares outstanding from 49.1 million at the end of 2021 to 78.1 million by the end of 2022, primarily due to the business combination with ADVA Optical Networking SE which closed on July 15, 2022.
  • Shares outstanding continued to gradually increase, reaching 79.831 million by September 30, 2025.
  • The Chairman & CEO, Stanton R. Stanton, acquired 39,735 shares of common stock as a grant or award on January 24, 2025, and previously received shares from the settlement of performance stock units granted on March 1, 2023, under the company's employee stock incentive plan.

Outbound Investments

  • ADTRAN Holdings, Inc. completed a major business combination with ADVA Optical Networking SE on July 15, 2022, forming a new global leader in networking and communications solutions.
  • In 2025, the company purchased $46.6 million of ADTRAN Networks stock to reduce minority interest, with $27.2 million of these purchases occurring in the fourth quarter of 2025.

Capital Expenditures

  • Capital expenditures for ADTRAN were reported as -7.982 million in the most recent quarter available.
  • For its subsidiary, Adtran Networks SE, cash flow from investing activities was negative EUR 81.4 million in 2024 and negative EUR 71.8 million in 2023.
  • In 2024, Adtran Networks SE saw increased capital expenditures for intangible assets, while investments in property, plant and equipment, and capitalized development projects decreased.
  • ADTRAN's priorities for 2026 include converting customer opportunities and sustained fiber investment across its core markets.

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Recent Active Movers

Peer Comparisons

Peers to compare with:

Financials

ADTNCIENCALXEXTRRBBNLITEMedian
NameAdtran Ciena Calix Extreme .Ribbon C.Lumentum  
Mkt Price15.77577.9040.4022.772.601,030.3731.59
Mkt Cap1.381.92.73.00.573.72.8
Rev LTM1,1225,1241,0601,2528262,4881,187
Op Inc LTM-54204040525140
FCF LTM3374210910517114107
FCF 3Y Avg1251869909-3340
CFO LTM9993013213233452132
CFO 3Y Avg746618911329196101

Growth & Margins

ADTNCIENCALXEXTRRBBNLITEMedian
NameAdtran Ciena Calix Extreme .Ribbon C.Lumentum  
Rev Chg LTM18.8%26.5%28.4%14.9%-1.2%69.0%22.7%
Rev Chg 3Y Avg-1.1%11.0%6.2%1.2%-0.3%16.9%3.7%
Rev Chg Q15.5%33.1%27.1%11.4%-10.3%90.1%21.3%
QoQ Delta Rev Chg LTM3.5%7.4%6.0%2.7%-2.2%18.2%4.8%
Op Inc Chg LTM93.8%128.4%184.5%315.6%-77.2%187.9%156.4%
Op Inc Chg 3Y Avg23.9%36.7%-111.8%44.7%52.2%-485.7%30.3%
Op Mgn LTM-0.5%8.2%3.8%3.2%0.6%10.1%3.5%
Op Mgn 3Y Avg-9.0%7.2%-0.2%1.8%1.7%-10.5%0.7%
QoQ Delta Op Mgn LTM1.0%1.7%1.7%0.5%-1.8%9.6%1.3%
CFO/Rev LTM8.8%18.1%12.5%10.6%4.0%18.2%11.5%
CFO/Rev 3Y Avg7.3%14.3%9.1%9.4%3.4%9.2%9.1%
FCF/Rev LTM2.9%14.5%10.3%8.4%2.0%4.6%6.5%
FCF/Rev 3Y Avg1.2%11.2%7.0%7.5%1.1%-3.4%4.1%

Valuation

ADTNCIENCALXEXTRRBBNLITEMedian
NameAdtran Ciena Calix Extreme .Ribbon C.Lumentum  
Mkt Cap1.381.92.73.00.573.72.8
P/S1.116.02.52.40.629.62.5
P/Op Inc-241.1195.066.774.986.5293.280.7
P/EBIT-5,413.1228.466.769.6-30.8247.568.1
P/E-35.5357.578.3186.014.6167.5122.9
P/CFO12.888.020.022.913.9162.821.5
Total Yield-2.8%0.3%1.3%0.5%6.9%0.6%0.6%
Dividend Yield0.0%0.0%0.0%0.0%0.0%0.0%0.0%
FCF Yield 3Y Avg0.1%4.4%2.6%5.2%2.1%-1.9%2.3%
D/E0.20.00.00.10.90.00.1
Net D/E0.10.0-0.10.00.70.00.0

Returns

ADTNCIENCALXEXTRRBBNLITEMedian
NameAdtran Ciena Calix Extreme .Ribbon C.Lumentum  
1M Rtn5.3%20.4%-17.1%29.1%9.2%18.3%13.8%
3M Rtn51.9%94.4%-23.3%52.2%32.0%79.5%52.1%
6M Rtn96.1%175.8%-36.2%24.6%-19.8%306.0%60.4%
12M Rtn84.2%617.1%-10.0%41.8%-26.6%1,282.9%63.0%
3Y Rtn92.0%1,231.3%-6.5%36.5%2.8%2,340.5%64.3%
1M Excs Rtn-3.8%16.9%-24.0%23.0%-2.0%14.0%6.0%
3M Excs Rtn44.7%87.2%-30.6%45.0%24.7%72.2%44.8%
6M Excs Rtn87.7%167.9%-45.9%18.2%-29.4%287.5%52.9%
12M Excs Rtn62.4%604.0%-36.0%18.0%-51.4%1,309.1%40.2%
3Y Excs Rtn7.0%1,138.3%-85.1%-43.9%-81.4%1,971.6%-18.4%

Comparison Analyses

Financials

Segment Financials

Revenue by Segment
$ Mil20252024202320222021
Network Solutions739974917499438
Services & Support1841751096468
Total9231,1491,026563507


Price Behavior

Price Behavior
Market Price$15.77 
Market Cap ($ Bil)1.3 
First Trading Date08/10/1994 
Distance from 52W High-14.5% 
   50 Days200 Days
DMA Price$13.92$10.32
DMA Trendupup
Distance from DMA13.3%52.8%
 3M1YR
Volatility64.6%60.2%
Downside Capture78.35238.54
Upside Capture216.74242.97
Correlation (SPY)25.1%37.4%
ADTN Betas & Captures as of 4/30/2026

 1M2M3M6M1Y3Y
Beta0.550.911.221.641.871.52
Up Beta0.410.630.860.881.631.23
Down Beta6.630.880.651.581.201.47
Up Capture221%276%318%363%492%646%
Bmk +ve Days15223166141428
Stock +ve Days16284071133382
Down Capture-289%-45%34%138%160%111%
Bmk -ve Days4183056108321
Stock -ve Days6152453116357

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ADTN
ADTN85.1%60.2%1.27-
Sector ETF (XLK)56.5%20.4%2.0839.9%
Equity (SPY)28.9%12.0%1.8237.8%
Gold (GLD)44.6%26.8%1.3512.3%
Commodities (DBC)47.8%18.6%1.96-3.6%
Real Estate (VNQ)11.3%13.5%0.5515.1%
Bitcoin (BTCUSD)-21.3%41.7%-0.4623.3%

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Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ADTN
ADTN-3.5%56.2%0.15-
Sector ETF (XLK)21.7%24.8%0.7738.4%
Equity (SPY)13.7%17.1%0.6340.0%
Gold (GLD)20.4%17.9%0.9312.2%
Commodities (DBC)11.1%19.4%0.4612.2%
Real Estate (VNQ)3.6%18.8%0.0930.6%
Bitcoin (BTCUSD)7.5%55.9%0.3518.6%

Smart multi-asset allocation framework can stack odds in your favor. Learn How
Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ADTN
ADTN-1.4%50.2%0.17-
Sector ETF (XLK)25.1%24.4%0.9338.5%
Equity (SPY)15.6%17.9%0.7541.0%
Gold (GLD)13.4%15.9%0.708.8%
Commodities (DBC)8.3%17.9%0.3817.7%
Real Estate (VNQ)5.4%20.7%0.2231.8%
Bitcoin (BTCUSD)68.2%66.9%1.0715.1%

Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date4302026
Short Interest: Shares Quantity11.1 Mil
Short Interest: % Change Since 415202617.5%
Average Daily Volume2.7 Mil
Days-to-Cover Short Interest4.1 days
Basic Shares Quantity80.3 Mil
Short % of Basic Shares13.9%

Earnings Returns History

Expand for More
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
5/5/2026-16.6%-14.5% 
1/22/2026-3.5%-5.4%3.2%
11/4/2025-24.2%-23.1%-18.1%
8/5/2025-14.6%-9.6%-2.0%
5/8/2025-3.0%2.5%1.0%
2/27/2025-0.4%-0.2%-13.1%
11/7/202419.3%26.2%33.2%
8/6/2024-18.8%-18.2%-9.5%
...
SUMMARY STATS   
# Positive81210
# Negative171314
Median Positive2.5%3.5%11.5%
Median Negative-4.8%-5.5%-7.1%
Max Positive19.3%26.2%33.2%
Max Negative-24.2%-23.1%-28.3%

SEC Filings

Expand for More
Report DateFiling DateFiling
03/31/202605/05/202610-Q
12/31/202502/26/202610-K
09/30/202511/04/202510-Q
06/30/202508/05/202510-Q
03/31/202505/20/202510-Q
12/31/202403/03/202510-K
09/30/202411/12/202410-Q
06/30/202408/09/202410-Q
03/31/202405/10/202410-Q
12/31/202303/15/202410-K
09/30/202311/09/202310-Q
06/30/202308/14/202310-Q
03/31/202305/10/202310-Q
12/31/202203/01/202310-K
09/30/202211/09/202210-Q
06/30/202208/05/202210-Q

Recent Forward Guidance [BETA]

Latest: Q1 2026 Earnings Reported 5/5/2026

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
Q2 2026 Revenue283.00 Mil293.00 Mil303.00 Mil2.8% RaisedGuidance: 285.00 Mil for Q1 2026
Q2 2026 Non-GAAP Operating Margin5.0%7.0%9.0%16.7%1.0%RaisedGuidance: 6.0% for Q1 2026

Prior: Q4 2025 Earnings Reported 2/26/2026

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
Q1 2026 Revenue275.00 Mil285.00 Mil295.00 Mil1.8% RaisedGuidance: 280.00 Mil for Q4 2025
Q1 2026 Non-GAAP Operating Margin4.0%6.0%8.0%9.1%0.5%RaisedGuidance: 5.5% for Q4 2025

Insider Activity

Expand for More
#OwnerTitleHoldingActionFiling DatePriceSharesTransacted
Value
Value of
Held Shares
Form
1Glingener, ChristophChief Technology OfficerDirectSell511202615.0022,277334,155699,675Form
2Glingener, ChristophChief Technology OfficerDirectSell511202614.95126,1151,885,689697,443Form
3Jacqueline, Hourigan Rice DirectSell305202610.2914,406148,238142,095Form
4Santo, Timothy PSVP of Finance; CFODirectBuy120120258.026,15049,323213,284Form
5Theodosopoulos, Nikos DirectBuy120120257.8112,859100,429407,323Form