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Ribbon CommunicationsRBBN +2.56%56 PB Ratio is 0.92 as of Jul. 17, 2026, which is 23% below its 10-year median of 1.20. GuruFocus rates RBBN with a GF Score™ of 56/100 and a GF Value™ of $2.99 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 2,629 Software companies, Ribbon Communications ranks better than 84.98% on this metric.
The historical rank and industry rank for Ribbon Communications's PB Ratio or its related term are showing as below:
RBBN'
s PB Ratio Range Over the Past 10 Years
Min: 0.48 Med: 1.2 Max: 2.23
Current: 0.92
During the past 13 years, Ribbon Communications's highest PB Ratio was 2.23. The lowest was 0.48. And the median was 1.20.
RBBN's PB Ratio is ranked better than 84.98% of 2629
companies
in the Software industry
Industry Median: 2.39
vs RBBN: 0.92
During the past 12 months, Ribbon Communications's average Book Value Per Share Growth Rate was 10.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -6.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -12.10% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -8.20% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Ribbon Communications was 59.40% per year. The lowest was -17.70% per year. And the median was -3.90% per year.
Back to Basics: PB Ratio
Ribbon Communications (NAS:RBBN) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
* 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.
For the Software - Application subindustry, Ribbon Communications's PB Ratio, along with its competitors' market caps and PB Ratio 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.
Ribbon Communications PB Ratio vs Software Industry
For the Software industry and Technology sector, Ribbon Communications's PB Ratio distribution charts can be found below:
* The bar in red indicates where Ribbon Communications's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Ribbon Communications (RBBN) has a PB Ratio of 0.92 as of Jul. 17, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ribbon Communications and its competitors. This is 23% below median its historical median of 1.20. Over the past decade, Ribbon Communications' PB Ratio has ranged from 0.48 to 2.23. According to the industry distribution chart, Ribbon Communications ranks #395 out of 2629 companies in the Software industry, placing it in the top 15%.
Is Ribbon Communications' PB Ratio too high?
Ribbon Communications' current PB Ratio of 0.92 is 23% below median its 10-year median of 1.20. Over the past 10 years, this metric has ranged from a low of 0.48 to a high of 2.23. The Software industry median PB Ratio is 2.39. Ribbon Communications' value of 0.92 is 61.5% below this industry median. Based on the distribution chart, Ribbon Communications ranks #395 out of 2629 companies in the Software industry, which is in the top quartile — a strong position relative to peers. Overall, Ribbon Communications has a GF Score™ of 56/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ribbon Communications' PB Ratio compare to XPER and SVCO?
According to the Software industry distribution chart, Ribbon Communications ranks #395 out of 2629 companies for PB Ratio. This places Ribbon Communications in the top 15% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.39. Ribbon Communications' value of 0.92 is 61.5% below this benchmark. Historically, Ribbon Communications' own PB Ratio has ranged from 0.48 to 2.23 over the past decade. While the company's 10-year median is 1.20 vs. the industry median of 2.39, Ribbon Communications has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Software company?
The median PB Ratio among Software companies is 2.39, based on 2,629 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ribbon Communications's current PB Ratio of 0.92 is 61.5% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ribbon Communications and its competitors. For the Software industry, the median PB Ratio is 2.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ribbon Communications's current PB Ratio is 0.92, which is 23% below median its own 10-year median of 1.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ribbon Communications stock overvalued right now?
Based on GuruFocus' analysis, Ribbon Communications (RBBN) is currently considered Modestly Undervalued. The stock's GF Value™ is $2.99, compared to a current price of $2.20 — trading 26.4% below its estimated fair value. The current PB Ratio is 0.92, which is 23% below median its 10-year median of 1.20 and 61.5% below the Software industry median of 2.39. Ribbon Communications' overall GF Score™ is 56/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Ribbon Communications (RBBN), the current PB Ratio is 0.92 as of Jul. 17, 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 Ribbon Communications (RBBN) Overvalued in 2026?
Based on GuruFocus' analysis, Ribbon Communications stock appears to be undervalued.
The current stock price of $2.20 is trading 26.4% below its estimated GF Value™ of $2.99.
GuruFocus considers Ribbon Communications to be Modestly Undervalued.
Key valuation signals for RBBN:
PB Ratio: 0.92 (23% below median its 10-year median of 1.20)
GF Value™: $2.99 vs. price of $2.20 (26.4% below fair value)
Industry Position: 61.5% below the Software median (#395 of 2629)
No single metric tells the full story. See the RBBN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ribbon Communications Inc provides communications technology to service providers and enterprises, offering software and high-performance hardware products, network solutions, and services for secure data and voice communications, as well as high-bandwidth networking for residential and enterprise customers across industries such as finance, education, government, utilities, and transportation. It operates through two segments: Cloud and Edge, which generate maximum revenue and deliver software-centric, cloud-native solutions for VoIP, VoLTE, VoNR, and unified communications, and IP Optical Networks, which support growing telecommunications traffic from 5G, distributed cloud computing, and other applications. The Company generates the majority of its revenue from the United States.
56GF Score
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