RBBN (Ribbon Communications) Earnings Yield (Joel Greenblatt) %: -4.08% (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

RBBN Ribbon Communications Inc RBBN
50 GF Score
Price $1.99
GF Value $2.90
Valuation Possible Value Trap
! 3 Warning Signs
View Full Analysis

What is Ribbon Communications Earnings Yield (Joel Greenblatt) %?

Ribbon Communications RBBN +2.05% 50 Earnings Yield (Joel Greenblatt) % is -4.08% as of Jun. 2026. GuruFocus rates RBBN with a GF Score™ of 50/100 and a GF Value™ of $2.90 (Possible Value Trap). The stock has 3 warning signs investors should review. Among 2,910 Software companies, Ribbon Communications ranks worse than 74.23% on this metric.

Ribbon Communications's Enterprise Value for the quarter that ended in Jun. 2026 was $771.8 Mil. Ribbon Communications's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 was $-31.5 Mil. Ribbon Communications's Earnings Yield (Joel Greenblatt) for the quarter that ended in Jun. 2026 was -4.08%.

The historical rank and industry rank for Ribbon Communications's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:

RBBN' s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: -40.48   Med: -5.46   Max: 10.89
Current: -4.44

During the past 13 years, the highest Earnings Yield (Joel Greenblatt) of Ribbon Communications was 10.89%. The lowest was -40.48%. And the median was -5.46%.

RBBN's Earnings Yield (Joel Greenblatt) % is ranked worse than
74.23% of 2910 companies
in the Software industry
Industry Median: 1.93 vs RBBN: -4.44

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Ribbon Communications's Forward Rate of Return (Yacktman) % for the quarter that ended in Jun. 2026 was 0.00%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.


Ribbon Communications  (NAS:RBBN) Earnings Yield (Joel Greenblatt) % Explanation

Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.

Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.


Be Aware

Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.

Forward Rate of Return (Yacktman) % based on Don Yacktman's definition is a better measure of the expected rate of return for a stock.


Ribbon Communications Earnings Yield (Joel Greenblatt) % Related Terms


Ribbon Communications Earnings Yield (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Ribbon Communications's Earnings Yield (Joel Greenblatt) % 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.

Ribbon Communications Earnings Yield (Joel Greenblatt) % Chart

Ribbon Communications Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Earnings Yield (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -15.50 -11.75 -3.69 -1.16 -0.02

Ribbon Communications Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Earnings Yield (Joel Greenblatt) % 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 0.62 0.91 -0.02 -2.10 -4.08

RBBN vs SVMB, BLND, ALIT: Earnings Yield (Joel Greenblatt) % Comparison

For the Software - Application subindustry, Ribbon Communications's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (Joel Greenblatt) % 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 Earnings Yield (Joel Greenblatt) % vs Software Industry

For the Software industry and Technology sector, Ribbon Communications's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Ribbon Communications's Earnings Yield (Joel Greenblatt) % falls into.


RBBN
50GF Score
Ribbon Communications Inc RBBN
Earnings Yield (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ribbon Communications Earnings Yield (Joel Greenblatt) % Calculation

In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.

Ribbon Communicationss Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as

Earnings Yield (Joel Greenblatt)=EBIT/Enterprise Value
=-0.185/814.96288
=-0.02 %

Ribbon Communications's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-31.5 Mil.


What does a Earnings Yield (Joel Greenblatt) % of -4.08% mean?
Ribbon Communications (RBBN) has a Earnings Yield (Joel Greenblatt) % of -4.08% as of Jun. 2026. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Ribbon Communications and its competitors. According to the industry distribution chart, Ribbon Communications ranks #2160 out of 2910 companies in the Software industry, placing it in the top 74.2%.
Is Ribbon Communications' Earnings Yield (Joel Greenblatt) % too high?
Ribbon Communications' current Earnings Yield (Joel Greenblatt) % is -4.08%. Based on the distribution chart, Ribbon Communications ranks #2160 out of 2910 companies in the Software industry, which is below the industry midpoint. Overall, Ribbon Communications has a GF Score™ of 50/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Ribbon Communications' Earnings Yield (Joel Greenblatt) % compare to SVMB and BLND?
According to the Software industry distribution chart, Ribbon Communications ranks #2160 out of 2910 companies for Earnings Yield (Joel Greenblatt) %. This places Ribbon Communications in the lower half of its industry. The industry median Earnings Yield (Joel Greenblatt) % is 1.93. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Yield (Joel Greenblatt) % for a Software company?
The median Earnings Yield (Joel Greenblatt) % among Software companies is 1.93, based on 2,910 companies in the industry. Companies in the top quartile (top 25%) have a Earnings Yield (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, Earnings Yield (Joel Greenblatt) % 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 Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Ribbon Communications and its competitors. For the Software industry, the median Earnings Yield (Joel Greenblatt) % is 1.93 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ribbon Communications's current Earnings Yield (Joel Greenblatt) % is -4.08%. 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 Possible Value Trap. The stock's GF Value™ is $2.90, compared to a current price of $1.99 — trading 31.4% below its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is -4.08%. Ribbon Communications' overall GF Score™ is 50/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For Ribbon Communications (RBBN), the current Earnings Yield (Joel Greenblatt) % is -4.08% 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 Ribbon Communications (RBBN) Overvalued in 2026?

Based on GuruFocus' analysis, Ribbon Communications stock appears to be undervalued. The current stock price of $1.99 is trading 31.4% below its estimated GF Value™ of $2.90. GuruFocus considers Ribbon Communications to be Possible Value Trap.

Key valuation signals for RBBN:

  • Earnings Yield (Joel Greenblatt) %: -4.08%
  • GF Value™: $2.90 vs. price of $1.99 (31.4% below fair value)
  • GF Score™: 50/100 with 3 warning signs

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 Business Description

Other Exchanges NU42:Germany
Address 6500 Chase Oaks Boulevard, Suite 100, Plano, TX, USA, 75023
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.
50GF Score

Get the complete analysis for RBBN

Earnings Yield (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$1.99
Price
$2.90
GF Value