Tearsheet

Ribbon Communications (RBBN)


Market Price (12/23/2025): $2.945 | Market Cap: $520.1 Mil
Sector: Information Technology | Industry: Application Software

Ribbon Communications (RBBN)


Market Price (12/23/2025): $2.945
Market Cap: $520.1 Mil
Sector: Information Technology
Industry: Application Software

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


0 Valuation becoming less expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is -27%
Weak multi-year price returns
2Y Excs Rtn is -34%, 3Y Excs Rtn is -72%
Debt is significant
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is 64%
1 Attractive yield
FCF Yield is 10%
  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 -12%
2 Megatrend and thematic drivers
Megatrends include 5G & Advanced Connectivity, Cybersecurity, and Cloud Computing. Themes include Telecom Infrastructure, Show more.
  Key risks
RBBN key risks include [1] revenue volatility from its high concentration of large customers and [2] supply chain and operational disruptions stemming from its dependence on limited-source suppliers and exposure to international geopolitical tensions.
0 Valuation becoming less expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is -27%
1 Attractive yield
FCF Yield is 10%
2 Megatrend and thematic drivers
Megatrends include 5G & Advanced Connectivity, Cybersecurity, and Cloud Computing. Themes include Telecom Infrastructure, Show more.
3 Weak multi-year price returns
2Y Excs Rtn is -34%, 3Y Excs Rtn is -72%
4 Debt is significant
Net D/ENet Debt/Equity. Debt net of cash. Negative indicates net cash. Equity is taken as the Market Capitalization is 64%
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 -12%
6 Key risks
RBBN key risks include [1] revenue volatility from its high concentration of large customers and [2] supply chain and operational disruptions stemming from its dependence on limited-source suppliers and exposure to international geopolitical tensions.

Valuation, Metrics & Events

RBBN Stock


Why The Stock Moved


Qualitative Assessment

AI Analysis | Feedback

Ribbon Communications (RBBN) experienced a stock decline of 27.9% in the approximate period from August 31, 2025, to December 23, 2025. Several factors contributed to this movement. 1. 1. Q3 2025 Earnings Miss: Ribbon Communications reported its Q3 2025 earnings on October 22, 2025, with a non-GAAP EPS of $0.04, falling short of the forecasted $0.06. This resulted in a negative earnings surprise of 33.33%. The company's revenue of $215 million also slightly missed the forecast of $220.04 million. Following this announcement, the stock price declined by 0.99% in aftermarket trading. 2. 2. Decreased GAAP Gross Margin: In Q3 2025, the GAAP gross margin decreased to 50.1% from 52.1% in the same period last year, influenced by various factors, including lower software sales to U.S. government customers and foreign exchange headwinds. 3. Show more

Stock Movement Drivers

Fundamental Drivers

The -24.0% change in RBBN stock from 9/22/2025 to 12/22/2025 was primarily driven by a -24.5% change in the company's P/S Multiple.
922202512222025Change
Stock Price ($)3.872.94-24.03%
Change Contribution ByLTMLTM
Total Revenues ($ Mil)863.46868.590.59%
P/S Multiple0.790.60-24.54%
Shares Outstanding (Mil)176.75176.620.07%
Cumulative Contribution-24.03%

LTM = Last Twelve Months as of date shown

Market Drivers

9/22/2025 to 12/22/2025
ReturnCorrelation
RBBN-24.0% 
Market (SPY)2.7%46.9%
Sector (XLK)2.7%41.2%

Fundamental Drivers

The -25.4% change in RBBN stock from 6/23/2025 to 12/22/2025 was primarily driven by a -27.9% change in the company's P/S Multiple.
623202512222025Change
Stock Price ($)3.942.94-25.38%
Change Contribution ByLTMLTM
Total Revenues ($ Mil)835.50868.593.96%
P/S Multiple0.830.60-27.86%
Shares Outstanding (Mil)175.72176.62-0.51%
Cumulative Contribution-25.38%

LTM = Last Twelve Months as of date shown

Market Drivers

6/23/2025 to 12/22/2025
ReturnCorrelation
RBBN-25.4% 
Market (SPY)14.4%48.1%
Sector (XLK)19.7%37.9%

Fundamental Drivers

The -29.5% change in RBBN stock from 12/22/2024 to 12/22/2025 was primarily driven by a -33.6% change in the company's P/S Multiple.
1222202412222025Change
Stock Price ($)4.172.94-29.50%
Change Contribution ByLTMLTM
Total Revenues ($ Mil)808.92868.597.38%
P/S Multiple0.900.60-33.59%
Shares Outstanding (Mil)174.61176.62-1.15%
Cumulative Contribution-29.51%

LTM = Last Twelve Months as of date shown

Market Drivers

12/22/2024 to 12/22/2025
ReturnCorrelation
RBBN-29.5% 
Market (SPY)16.9%56.4%
Sector (XLK)23.8%56.5%

Fundamental Drivers

The 10.9% change in RBBN stock from 12/23/2022 to 12/22/2025 was primarily driven by a 15.9% change in the company's P/S Multiple.
1223202212222025Change
Stock Price ($)2.652.9410.94%
Change Contribution ByLTMLTM
Total Revenues ($ Mil)816.70868.596.35%
P/S Multiple0.520.6015.93%
Shares Outstanding (Mil)158.92176.62-11.14%
Cumulative Contribution9.57%

LTM = Last Twelve Months as of date shown

Market Drivers

12/23/2023 to 12/22/2025
ReturnCorrelation
RBBN1.4% 
Market (SPY)47.7%47.8%
Sector (XLK)52.9%45.7%

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
RBBN Return112%-8%-54%4%43%-31%-7%
Peers Return68%83%-10%-20%20%54%304%
S&P 500 Return16%27%-19%24%23%17%113%

Monthly Win Rates [3]
RBBN Win Rate50%42%58%58%67%42% 
Peers Win Rate52%62%35%47%55%62% 
S&P 500 Win Rate58%75%42%67%75%73% 

Max Drawdowns [4]
RBBN Max Drawdown-35%-20%-63%-33%-12%-34% 
Peers Max Drawdown-40%-2%-39%-32%-26%-22% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: CSCO, CIEN, ADTN, CALX, EXTR.
[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] 2025 data is for the year up to 12/22/2025 (YTD)

How Low Can It Go

Unique KeyEventRBBNS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-83.3%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven498.9%34.1%
2022 Inflation ShockTime to BreakevenTime to BreakevenNot Fully Recovered days464 days
2020 Covid Pandemic2020 Covid Pandemic  
2020 Covid Pandemic% Loss% Loss-43.9%-33.9%
2020 Covid Pandemic% Gain to Breakeven% Gain to Breakeven78.3%51.3%
2020 Covid PandemicTime to BreakevenTime to Breakeven43 days148 days
2018 Correction2018 Correction  
2018 Correction% Loss% Loss-68.9%-19.8%
2018 Correction% Gain to Breakeven% Gain to Breakeven221.5%24.7%
2018 CorrectionTime to BreakevenTime to Breakeven442 days120 days
2008 Global Financial Crisis2008 Global Financial Crisis  
2008 Global Financial Crisis% Loss% Loss-87.6%-56.8%
2008 Global Financial Crisis% Gain to Breakeven% Gain to Breakeven704.5%131.3%
2008 Global Financial CrisisTime to BreakevenTime to BreakevenNot Fully Recovered days1,480 days

Compare to UIS, AIB, BMR, CCC, FUSE

In The Past

Ribbon Communications's stock fell -83.3% during the 2022 Inflation Shock from a high on 2/16/2021. A -83.3% loss requires a 498.9% gain to breakeven.

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About Ribbon Communications (RBBN)

Ribbon Communications Inc. provides communications technology in the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments, Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment provides software and hardware products; and solutions and services for enabling voice over internet protocol communications, voice over long-term evolution, and voice over 5G communications and unified communications and collaboration. It also offers session border controller and network transformation products. This segment serves private, public, or hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. It also provides multiple solutions for VoIP, VoLTE, VoNR, and UC&C in network, on-premises, or via the telco cloud. The IP Optical Networks segment provides hardware and software solutions for IP networking, switching, routing, and optical transport to support and enable technologies, such as 5G, distributed cloud computing, and corresponding applications. It also offers multiple solutions, including 5G-native solutions for mobile-backhaul, metro and edge aggregation, core networking, data center interconnect, legacy NTR, and transport solutions for wholesale carriers. This segment serves utilities, government, defense, finance, transportation, and education and research industries, as well as service providers and enterprises. It also provides advanced analytics solutions and next generation products that provides cloud-native and streaming analytics platform for networks and subscribers. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Ribbon Communications Inc. was founded in 1997 and is headquartered in Plano, Texas.

AI Analysis | Feedback

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1. A specialized Cisco that provides the secure, underlying 'plumbing' for voice and video communications networks for telecom carriers and large businesses.

2. Like a Ciena for high-capacity optical networking, but also with significant expertise in real-time communications software.

3. They are akin to a Nokia or Ericsson but focused on providing the core IP-based voice, video, and optical infrastructure rather than cellular networks.

```

AI Analysis | Feedback

  • Session Border Controllers (SBCs): Hardware and software solutions that secure and manage real-time communications sessions across IP networks for enterprises and service providers.
  • Voice and Unified Communications Solutions: Platforms and services enabling cloud-based voice, unified communications as a service (UCaaS), and enterprise telephony deployments.
  • Optical and IP Networking Solutions: Infrastructure products for high-capacity data transport, including optical transport and IP routing solutions primarily for service providers.
  • Network Analytics and Security: Software and services for monitoring network performance, preventing fraud, and securing real-time communications infrastructure against cyber threats.

AI Analysis | Feedback

Ribbon Communications (RBBN) primarily sells its communication and optical networking solutions to other companies, specifically global communications service providers, large enterprises, and government agencies.

While Ribbon Communications has publicly stated in its financial filings (e.g., 10-K reports) that a significant portion of its revenue comes from a limited number of customers (for instance, its top three customers accounted for approximately 26.6% of total revenue in 2022), the company does not individually name these specific major customers in its public disclosures.

However, based on public announcements and the types of organizations it serves, Ribbon's customers generally fall into the following categories:

  • Communication Service Providers (CSPs): These include large incumbent telecom operators, mobile network operators, and internet service providers worldwide.
  • Large Enterprises: Businesses that require advanced communication infrastructure, unified communications solutions, and secure network environments.
  • Government Agencies: Public sector entities with specialized communication and security needs.

Examples of prominent global service providers and enterprises that Ribbon Communications has publicly announced as customers or partners for various solutions include:

  • Vodafone (VOD) - a global telecommunications company.
  • Spark New Zealand (SPK.NZ) - a major telecommunications and digital services company in New Zealand.
  • Consolidated Communications (CNSL) - a U.S. broadband and business communications provider.
  • Verizon (VZ) - a major U.S. telecommunications company (historically and for various solutions).
  • AT&T (T) - a major U.S. telecommunications company (historically and for various solutions).

Please note: While the companies listed above are known customers or partners of Ribbon Communications, their individual contribution to Ribbon's "major customer" revenue concentration (as described in their 10-K filings) is not specifically disclosed by Ribbon.

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Bruce McClelland, President, CEO & Director

Bruce McClelland became President, CEO, and Director of Ribbon Communications in March 2020. He is recognized as a technical business leader with a history of developing and growing profitable businesses. Before joining Ribbon, McClelland served as CEO of ARRIS International plc, where he led its sale to CommScope Inc. for $7.4 billion in April 2019. Following the acquisition, he was the Chief Operating Officer of CommScope. During his tenure at ARRIS, he played a key role in the acquisition and integration of several companies, including Ruckus Wireless and the Brocade ICX Campus switching businesses. Earlier in his career, he held various leadership positions at Nortel Networks Corporation and Bell Northern Research.

John Townsend, Executive Vice President, Chief Financial Officer

John Townsend was appointed Executive Vice President and Chief Financial Officer of Ribbon Communications, effective November 1, 2024. He brings over 30 years of financial leadership experience, having most recently served as the Group CFO of Digicel Group. Prior to Digicel, Townsend spent nine years at Verizon Communications, where he held various CFO roles for organizations such as Verizon Business, Verizon Wireline, Verizon Wireless, and Verizon Consumer. Before Verizon, he spent nearly two decades at Vodafone Group, taking on multiple regional CFO assignments, including for operations in Sweden, Australia, the Pacific, and the UK. He also served as the CFO for the Verizon Wireless joint venture during his time at Vodafone. Townsend began his career at KPMG in the UK and Hong Kong.

Sam Bucci, Executive Vice President, Chief Operating Officer

Sam Bucci has served as the Chief Operating Officer and Executive Vice President of Ribbon Communications since January 2023. Before this role, he was the Executive Vice President and General Manager of the IP Optical Networks Business Unit for the company from September 2020 to December 2022. Earlier in his career, Bucci served as the Director of the Optical Networking Business unit at Nokia and Alcatel-Lucent from 1994 to 2020.

Patrick Macken, Executive Vice President, Chief Legal Officer

Patrick Macken has been the Executive Vice President, Chief Legal Officer, and Corporate Secretary of Ribbon Communications since June 2020. Previously, he served as Senior Vice President, General Counsel, and Secretary at ARRIS International plc from 2015 to 2019. Prior to that, Macken was a Partner at Troutman Sanders LLP.

Joni Roberts, Senior Vice President, Chief Marketing Officer

Joni Roberts has held the position of Senior Vice President, Chief Marketing Officer at Ribbon Communications since 2023. Additional background details were not readily available in the search results provided.

AI Analysis | Feedback

The key risks to Ribbon Communications' (RBBN) business include:

  1. Unpredictable Revenue and Customer Spending: Ribbon Communications faces significant risk from unpredictable quarterly revenue and fluctuating operating results. This unpredictability stems from varying rates at which its customers adopt new technologies, leading to delayed orders, deferred purchasing decisions, and reduced expenditures. The company's reliance on large customers, such as Verizon, further contributes to this revenue volatility. Additionally, broader macroeconomic pressures can impact customer spending and investment in telecommunications infrastructure.
  2. Rapid Technological Changes and Intense Competitive Pressures: The telecommunications industry, in which Ribbon Communications operates, is characterized by rapid technological advancements, including the ongoing transition to network virtualization and the integration of artificial intelligence (AI). The company faces intense competition from other telecommunications equipment and networking providers, as well as technology and AI solution providers. A failure to adapt to these rapid changes or compete successfully could adversely affect its ability to grow revenues and maintain profitability.
  3. Supply Chain Disruptions and Risks from International Operations: Ribbon Communications is exposed to risks related to its supply chain, particularly its dependence on a limited number of contract manufacturers and single or restricted sources for components. Disruptions to this supply chain could negatively impact production and product availability. Furthermore, the company's international operations expose it to higher risks, including potential increases in tariffs, trade restrictions, taxes, and geopolitical tensions, such as ongoing conflicts, which could disrupt its global operations and sales.

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The increasing expansion of hyperscale cloud providers (e.g., Amazon Web Services, Microsoft Azure, Google Cloud) into direct communication services and underlying network infrastructure threatens Ribbon Communications. These providers offer integrated, cloud-native communication platforms and network functionalities that can disintermediate traditional communication software vendors by absorbing features into their platforms or commoditizing specialized solutions, shifting the value proposition towards a bundled, consumption-based cloud model.

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Ribbon Communications (RBBN) addresses several significant markets with its core products and services, including Session Border Controllers (SBCs), IP Optical Networking, Unified Communications as a Service (UCaaS), Fixed Wireless Access (FWA) solutions, and various analytics offerings.

Here are the estimated addressable market sizes for Ribbon Communications' main products and services:

  • Session Border Controllers (SBCs): The global Session Border Controller market is projected to reach USD 36.3 billion by 2035, growing from USD 10.7 billion in 2024, at a Compound Annual Growth Rate (CAGR) of 11.76% from 2025 to 2035. Another estimate places the global SBC market size at over USD 1.03 billion in 2024, expected to reach USD 2.31 billion by 2034, with an 8.4% CAGR between 2025 and 2034. For Enterprise Session Border Controllers specifically, the global market was valued at US$725.1 million in 2024 and is projected to reach US$1.1 billion by 2030, demonstrating a CAGR of 6.6% from 2024 to 2030.
  • IP Optical Networking / Optical Transport: The global Optical Transport Network (OTN) market is valued at USD 27 billion in 2025 and is estimated to expand to USD 40.44 billion by 2030, reflecting an 8.42% CAGR. The global Optical Transport Network (OTN) hardware market 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% from 2024 to 2030. The broader global optical networking market was estimated at USD 41.76 billion in 2024 and is projected to grow to USD 126.75 billion by 2035, exhibiting a CAGR of 10.62% from 2025 to 2035. North America accounts for approximately 45% of this global share.
  • Unified Communications as a Service (UCaaS): The global Unified Communication as a Service (UCaaS) market was estimated at USD 87.39 billion in 2024 and is projected to reach USD 262.37 billion by 2030, growing at a CAGR of 19.8% from 2025 to 2030. Another report indicates the global UCaaS market was valued at USD 56.75 billion in 2024 and is projected to grow to USD 215.53 billion by 2032, with an 18.15% CAGR during the forecast period.
  • Fixed Wireless Access (FWA): The global Fixed Wireless Access market was estimated at USD 143.61 billion in 2023 and is projected to reach USD 476.34 billion by 2030, growing at a CAGR of 19.8% from 2024 to 2030. More specifically, the global 5G Fixed Wireless Access market size is accounted at USD 64.10 billion in 2025 and is predicted to increase to approximately USD 1,317.52 billion by 2034, at a CAGR of 39.92% from 2025 to 2034. North America held the largest share of the 5G FWA market in 2024, at 36%.
  • Analytics: The global Analytics as a Service market was valued at USD 6.68 billion in 2022 and is projected to grow to USD 39.91 billion by 2030, exhibiting a CAGR of 25.7%. North America dominated this market with a 23.35% share in 2022. Additionally, the global Revenue Assurance Analytics market reached USD 6.2 billion in 2024 and is projected to grow to USD 17.3 billion by 2033, at a CAGR of 11.7% from 2025 to 2033.

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Expected Drivers of Future Revenue Growth for Ribbon Communications (RBBN)

Over the next 2-3 years, Ribbon Communications (RBBN) is expected to drive future revenue growth through several key initiatives:

  1. Network Modernization and Expansion: Ribbon Communications is focused on assisting service providers, enterprises, and critical infrastructure operators in modernizing their networks. This includes upgrading legacy voice networks to IP-based solutions, facilitating the migration of telecom workloads to cloud-native platforms, and expanding IP optical networks to support the exponential growth in internet traffic driven by 5G wireless, fiber-to-the-home broadband deployments, and AI traffic. This modernization effort encompasses middle-mile and backhaul refreshes for 5G and fixed broadband, as well as optical backbone refresh and expansion projects. The company has seen significant year-over-year sales growth in its Cloud & Edge segment and strong sales in its IP Optical Networks segment, particularly in EMEA and India.
  2. Strategic Customer and Geographic Expansion: A significant driver of revenue growth is the expansion of Ribbon's footprint within key customer segments and geographies. The company has reported higher sales to U.S. Tier One Service Providers, U.S. Federal Defense agencies, and enterprise customers. There is also a focus on communication modernization with the Department of Defense (DOD) and civil agencies, secure high-performance data networks for mission-critical programs, and modernization efforts within utility and rail networks and financial institutions. Strong demand has been noted in North American markets for the Cloud & Edge segment, and in India and EMEA for the IP Optical Networks segment.
  3. Advancement in AI and Analytics Platforms: Ribbon is actively pursuing opportunities related to the convergence of AI and voice technologies. The introduction of the Acumen AIOps platform and a growing pipeline of opportunities for agentic and generative AI platforms are expected to be significant growth catalysts. These platforms aim to integrate AI capabilities seamlessly, change the economics of deploying and running networks, reduce deployment timelines, and deliver customizable automation across network lifecycles, including deployment automation, observability, analytics, orchestration, management, and holistic security.

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Share Repurchases

  • Ribbon Communications authorized a new share repurchase program of up to $50 million, effective from June 5, 2025, through December 31, 2027.
  • This program is intended to be funded with cash on hand or cash generated from operations.
  • The timing and volume of repurchases will be at management's discretion and subject to various factors, including market conditions and compliance with the company's credit facilities.

Share Issuance

  • In March 2023, Ribbon issued 55,000 shares of Preferred Stock at $970 per share and approximately 4.9 million warrants to purchase common stock at an exercise price of $3.77 per share, raising approximately $53.4 million in proceeds from a private placement.
  • During the nine months ended September 30, 2025, 0.2 million warrants were exercised.
  • On October 31, 2025, the company granted inducement equity awards (Restricted Stock Units and Performance Stock Units) to new hires, including approximately 748,039 shares in total (at target achievement for PSUs), convertible one-for-one into common stock.

Outbound Investments

  • Ribbon Communications completed the acquisition of ECI Telecom Group Ltd. in March 2020.
  • The acquisition was valued at approximately $486 million in cash and stock.
  • This strategic acquisition diversified Ribbon's revenue streams, significantly expanded its portfolio into optical and packet networking, and aimed to increase its total addressable market and global footprint, particularly in the 5G data domain.

Better Bets than Ribbon Communications (RBBN)

Trade Ideas

Select ideas related to RBBN. For more, see Trefis Trade Ideas.

Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
ENPH_11302025_Dip_Buyer_High_CFO_Margins_ExInd_DE11302025ENPHEnphase EnergyDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
16.1%16.1%-0.9%
PD_11262025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11262025PDPagerDutyDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
12.0%12.0%0.0%
CRM_11212025_Dip_Buyer_FCFYield11212025CRMSalesforceDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
16.7%16.7%-0.1%
HUBS_11212025_Dip_Buyer_High_CFO_Margins_ExInd_DE11212025HUBSHubSpotDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
12.8%12.8%0.0%
FIVN_11212025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11212025FIVNFive9Dip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
7.8%7.8%0.0%

Recent Active Movers

More From Trefis

Peer Comparisons for Ribbon Communications

Peers to compare with:

Financials

RBBNCSCOCIENADTNCALXEXTRMedian
NameRibbon C.Cisco Sy.Ciena Adtran Calix Extreme . 
Mkt Price2.9478.11236.759.0355.8916.9936.44
Mkt Cap0.5309.033.50.73.62.32.9
Rev LTM86957,6964,7701,0358691,1811,108
Op Inc LTM3712,991311-37-353435
FCF LTM5312,73366526729583
FCF 3Y Avg1613,879368-74711179
CFO LTM8413,7448069088119105
CFO 3Y Avg3514,736496496513198

Growth & Margins

RBBNCSCOCIENADTNCALXEXTRMedian
NameRibbon C.Cisco Sy.Ciena Adtran Calix Extreme . 
Rev Chg LTM7.4%8.9%18.8%14.3%-8.8%14.3%11.6%
Rev Chg 3Y Avg2.2%3.7%10.4%13.7%7.4%3.2%5.5%
Rev Chg Q2.4%7.5%20.3%22.7%22.1%15.2%17.8%
QoQ Delta Rev Chg LTM0.6%1.8%5.0%5.3%5.3%3.6%4.3%
Op Mgn LTM4.2%22.5%6.5%-3.6%-4.1%2.8%3.5%
Op Mgn 3Y Avg1.2%24.2%6.7%-11.5%0.2%1.9%1.5%
QoQ Delta Op Mgn LTM0.4%0.4%0.9%2.6%1.6%1.2%1.1%
CFO/Rev LTM9.7%23.8%16.9%8.7%10.1%10.1%10.1%
CFO/Rev 3Y Avg4.1%26.1%11.2%5.3%7.0%10.0%8.5%
FCF/Rev LTM6.1%22.1%13.9%2.5%8.2%8.0%8.1%
FCF/Rev 3Y Avg1.9%24.6%8.3%-0.1%5.2%8.3%6.7%

Valuation

RBBNCSCOCIENADTNCALXEXTRMedian
NameRibbon C.Cisco Sy.Ciena Adtran Calix Extreme . 
Mkt Cap0.5309.033.50.73.62.32.9
P/S0.65.47.00.74.11.93.0
P/EBIT56.722.5135.1-21.4-102.161.439.6
P/E-12.129.9271.8-8.2-134.2261.210.9
P/CFO6.222.541.68.041.018.920.7
Total Yield-8.3%5.4%0.4%-12.2%-0.7%0.4%-0.2%
Dividend Yield0.0%2.1%0.0%0.0%0.0%0.0%0.0%
FCF Yield 3Y Avg2.5%6.0%2.8%-0.8%1.5%3.6%2.6%
D/E0.80.10.00.30.00.10.1
Net D/E0.60.00.00.2-0.10.00.0

Returns

RBBNCSCOCIENADTNCALXEXTRMedian
NameRibbon C.Cisco Sy.Ciena Adtran Calix Extreme . 
1M Rtn6.9%2.6%32.8%24.6%3.8%-1.8%5.4%
3M Rtn-24.0%16.0%69.9%-6.4%-11.9%-23.5%-9.2%
6M Rtn-25.4%17.3%213.8%6.7%15.4%-1.2%11.1%
12M Rtn-29.5%36.9%170.9%10.3%58.1%-4.2%23.6%
3Y Rtn10.9%79.6%379.9%-50.6%-17.2%-7.9%1.5%
1M Excs Rtn1.3%-1.7%29.0%16.8%-0.4%-4.8%0.5%
3M Excs Rtn-28.3%13.0%66.4%-8.9%-13.9%-25.6%-11.4%
6M Excs Rtn-40.1%3.5%185.5%-8.9%-0.2%-17.0%-4.5%
12M Excs Rtn-41.8%22.1%165.0%-5.9%45.0%-19.5%8.1%
3Y Excs Rtn-71.6%0.5%311.3%-128.6%-98.1%-88.4%-80.0%

Financials

Segment Financials

Revenue by Segment
$ Mil20242023202220212020
Cloud and Edge478508557583563
Internet Protocol (IP) Optical Networks349312288261 
Total826820845844563


Price Behavior

Price Behavior
Market Price$2.94 
Market Cap ($ Bil)0.5 
First Trading Date05/25/2000 
Distance from 52W High-42.8% 
   50 Days200 Days
DMA Price$3.18$3.64
DMA Trenddowndown
Distance from DMA-7.4%-19.2%
 3M1YR
Volatility46.6%52.6%
Downside Capture220.27205.11
Upside Capture58.80139.98
Correlation (SPY)46.0%56.4%
RBBN Betas & Captures as of 11/30/2025

 1M2M3M6M1Y3Y
Beta2.481.761.782.081.501.55
Up Beta1.131.231.352.171.281.45
Down Beta3.502.942.482.641.551.31
Up Capture126%14%28%123%171%528%
Bmk +ve Days13263974142427
Stock +ve Days9172560121363
Down Capture325%215%235%209%140%110%
Bmk -ve Days7162452107323
Stock -ve Days8203258113352

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
 Comparison of RBBN With Other Asset Classes (Last 1Y)
 RBBNSector ETFEquityGoldCommoditiesReal EstateBitcoin
Annualized Return-28.5%21.7%14.7%67.3%6.8%-0.5%-16.6%
Annualized Volatility52.6%27.8%19.7%19.3%15.2%17.6%35.4%
Sharpe Ratio-0.450.690.572.540.23-0.18-0.25
Correlation With Other Assets 56.9%56.9%2.5%21.0%32.4%23.4%

ETFs used for asset classes: Sector ETF = XLK, Equity = SPY, Gold = GLD, Commodities = DBC, Real Estate = VNQ, and Bitcoin = BTCUSD
Smart multi-asset allocation framework can stack odds in your favor. Learn How
Based On 5-Year Data
 Comparison of RBBN With Other Asset Classes (Last 5Y)
 RBBNSector ETFEquityGoldCommoditiesReal EstateBitcoin
Annualized Return-13.9%19.4%15.0%18.9%11.8%5.1%35.8%
Annualized Volatility57.7%24.7%17.1%15.5%18.7%18.9%48.9%
Sharpe Ratio-0.030.710.710.980.510.180.63
Correlation With Other Assets 44.0%45.5%7.7%12.1%32.4%21.6%

ETFs used for asset classes: Sector ETF = XLK, Equity = SPY, Gold = GLD, Commodities = DBC, Real Estate = VNQ, and Bitcoin = BTCUSD
Smart multi-asset allocation framework can stack odds in your favor. Learn How
Based On 10-Year Data
 Comparison of RBBN With Other Asset Classes (Last 10Y)
 RBBNSector ETFEquityGoldCommoditiesReal EstateBitcoin
Annualized Return-8.0%22.4%14.9%14.9%6.7%5.5%69.9%
Annualized Volatility55.3%24.2%18.0%14.8%17.6%20.8%55.8%
Sharpe Ratio0.080.850.710.840.300.230.90
Correlation With Other Assets 41.9%44.0%3.5%16.9%32.6%15.8%

ETFs used for asset classes: Sector ETF = XLK, Equity = SPY, Gold = GLD, Commodities = DBC, Real Estate = VNQ, and Bitcoin = BTCUSD
Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date11282025
Short Interest: Shares Quantity3,136,135
Short Interest: % Change Since 11152025-3.7%
Average Daily Volume747,420
Days-to-Cover Short Interest4.20
Basic Shares Quantity176,620,000
Short % of Basic Shares1.8%

Earnings Returns History

Expand for More
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
10/22/2025-13.7%-13.7%-31.0%
7/23/2025-8.5%-10.6%-12.0%
4/29/2025-14.4%-17.1%-6.7%
2/12/202515.5%14.3%-8.8%
10/23/20248.2%7.9%13.7%
7/24/2024-17.2%-12.9%-17.0%
4/24/202426.5%23.3%26.5%
2/14/20247.2%-1.6%-8.1%
...
SUMMARY STATS   
# Positive12117
# Negative131418
Median Positive9.9%12.1%26.5%
Median Negative-9.2%-11.3%-10.1%
Max Positive26.5%23.3%77.7%
Max Negative-21.7%-23.0%-46.5%

SEC Filings

Expand for More
Report DateFiling DateFiling
93020251023202510-Q 9/30/2025
6302025724202510-Q 6/30/2025
3312025430202510-Q 3/31/2025
12312024227202510-K 12/31/2024
93020241024202410-Q 9/30/2024
6302024729202410-Q 6/30/2024
3312024515202410-Q 3/31/2024
12312023228202410-K 12/31/2023
93020231026202310-Q 9/30/2023
6302023727202310-Q 6/30/2023
3312023428202310-Q 3/31/2023
12312022331202310-K 12/31/2022
93020221028202210-Q 9/30/2022
6302022728202210-Q 6/30/2022
3312022510202210-Q 3/31/2022
12312021311202210-K 12/31/2021