Ribbon Communications Inc (RBBN) fair value: what the stock is really worth
As of Sep 24, 2026: fair value of Ribbon Communications Inc $5.46, price $1.82, upside +200.0%, quality 44 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 23, 2026.
How to read this chart
60‑month range $1.64 – $7.89 · fair‑value band $2.85 – $9.53 · the $1.82 price screens below the $5.46 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 23, 2026.
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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.
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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, solutions, and services for 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 controllers; and network transformation products, such as call controllers, media gateways, and application servers. This segment serves private, public, hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. The IP Optical Networks segment provides hardware and software products and solutions for IP networking, switching, routing, and optical transport for technologies comprising 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, multi-service access, 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. 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.
Stock analysis
Ribbon Communications Inc (RBBN) currently trades at $1.82, while our model-based Fair Value estimate is $5.46, implying the stock looks roughly 66.7% undervalued today.
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Valuation
Bull case: the Growth Earnings group reads highest at a median of $11.37 per share, and 19 of the 24 models we run sit above the $1.82 price.
Bear case: the Asset-Based group reads lowest at $1.71, and 5 of the 24 models stay below the price. Evidence for this calculation is low.
Scenario range: $2.85 (bear) to $9.53 (bull), the price of $1.82 sits below it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 44/100 (below-average quality), in the Technology sector.
Weak Growth: Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
Ribbon Communications Inc reported revenue of $845M in FY2025 versus $845M in FY2021, a compound 0.0%/yr. Reported net income was $39.6M in FY2025.
Key figures
Market cap $439M · P/E ratio 10.7 · P/S ratio 0.50 · EPS (TTM) $0.1700 · Dividend yield 0.6% · Net margin 4.7% · Return on equity 7.8% · Return on assets (EBIT) −1.9%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 43 out of 100 (low confidence).
What moves the price
The share trades about 55% below its 52-week high and 11% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −6% fair-value upside, at 200%, RBBN screens cheaper than that median.
Fair Value models
Bear $2.85Fair Value $5.46Bull $9.53
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Based on fiscal year 2025 figures (about 9 months old). Earnings retained since then ($0.1248 per share) are deliberately not added.Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target.Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card.40/100
Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
Revenue growth 1 year
+1.3%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+1.0%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+0.0%
Start year 2020 (pandemic). Over 10 years: +13.0% a year
Revenue growth 26 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+69.0%
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What shareholders gained per year (last 5 years) ⓘWhat the business itself delivers per year: earnings growth per share plus the dividend yield. This is what you get IF the market keeps valuing the stock the same way: it contains no assumption about the market changing its mind. Computed per share, so buybacks count and a merger does not pass as growth. For a company that pays no dividend it is pure earnings growth per share. Period: earnings growth per share as CAGR over the last 5 reported fiscal years (annual statements), plus the current dividend yield. The start value is the median of the three years around the start, so a single crisis year (a pandemic or a write-down) does not distort the rate.
−17.9%
Earnings growth per share plus dividend.
Earnings per share, growth per year−18.5%
Dividend (yield on the price)0.6%
Profit margin 2020 to 2025 ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.0% → 2%
Growth Forecast
A lot of optimism in the price
The price assumes more growth than the company has delivered so far and more than analysts expect.
What the price assumes ⓘThis turns our valuation around: instead of asking what the share is worth, it asks what growth the current price requires. It uses the cash the company keeps after all spending (free cash flow), the same discount rate as our models, five years of growth, then slowing evenly to 2 % a year by year ten. Compared with the analysts' sales forecasts extended to the same five years (at least three analysts, for context only, it does not enter the Fair Value): within 3 percentage points counts as "in line" (amber), below that little optimism (green), above that a lot of optimism (red).
+16.8%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect ⓘAnalysts publish sales forecasts for the next two fiscal years. For the years after that, growth slows evenly to 2 % a year by year ten (2 % is the long-run rate our models use). Projected years are marked as such.
+3.6%
Yearly sales growth analysts expect, extended to five years.
After inflation (USA: IMF forecast 2.4% a year to 2030, 3.1% from 2016 to 2025) that is about +14.1% a year for the price and +1.2% for the forecasts.
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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Software - Application · 721 stocks
Beats the industry median on 8/15 measures
A mixed picture versus its industry peers.
Valuation
Quality Score44 · Below median
Fair Value upside+200% · Top 25%
Profitability
Return on equity (TTM)8% · Above median
Return on assets0% · Below median
Net margin (TTM)4% · Above median
Operating margin (TTM)−18% · Bottom 25%
Growth and dividend
Revenue growth−10% · Bottom 25%
Dividend yield (TTM)0.6% · Below median
Balance sheet
Debt / equity0.72× · Highest 25%
Valuation Multiplesvs Software - Application median · lower = cheaper
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Is Ribbon Communications Inc (RBBN) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of $5.46 versus a price of $1.82, about +200% upside (undervalued).
What is the fair value of RBBN?
Our model-based fair value for Ribbon Communications Inc is $5.46 (as of Sep 23, 2026), built from audited fundamentals. The current price: $1.82.
What is the quality score of RBBN?
Ribbon Communications Inc has a Quality Score of 44/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Ribbon Communications Inc (RBBN)?
Our model-based price target is the fair value of $5.46 (as of Sep 23, 2026) from 24 valuation models. Cautious scenario $2.85, optimistic scenario $9.53. It is a calculation from audited fundamentals, not an analyst target.
What is the Ribbon Communications Inc stock forecast for 2026?
Our models put fair value at $5.46, about +200% upside versus a price of $1.82 (undervalued). Cautious scenario $2.85, optimistic scenario $9.53. The calculation is refreshed regularly with new filings.
What is the revenue of Ribbon Communications Inc (RBBN)?
Ribbon Communications Inc reported trailing-twelve-month revenue of about $826M (latest available figure, as of Sep 23, 2026).
Does Ribbon Communications Inc pay a dividend?
Ribbon Communications Inc currently shows a dividend yield of about 0.63% relative to its recent price (as of Sep 23, 2026).
What growth is priced into Ribbon Communications Inc (RBBN)?
For today's price to be fair in a discounted-cash-flow model, Ribbon Communications Inc would have to grow free cash flow by +16.8 % per year for five years (discount rate 12.1 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +0.0 % per year. As of Sep 23, 2026.
What discount rate (WACC) does the fair value of RBBN use?
Our models discount Ribbon Communications Inc at 12.1 %: a base by market capitalisation (small), damped by beta 1.31, country premium for USA. The same rate applies in all 26 models.
What is a reverse DCF?
A reverse DCF turns the usual calculation around. Instead of deriving a value from assumptions, it takes today's price as given and asks: what free-cash-flow growth would a company have to deliver for exactly this price to be fair? The result is not a forecast but the expectation already priced in. For Ribbon Communications Inc that is +16.8 % per year a year over ten years, using the same discount rate (12.1 %) and the same formula as our fair value.
How much growth has Ribbon Communications Inc (RBBN) delivered so far?
Over the past 5 years revenue at Ribbon Communications Inc grew +0.0 % a year. The price currently implies +16.8 % per year free-cash-flow growth a year. Comparing the two shows how much confidence is in the price: if it demands more than has been delivered, the business has to accelerate for the maths to work.
How fast is the sector of Ribbon Communications Inc (RBBN) growing?
The median revenue growth in the sector is +8.2 % a year. That is the yardstick for the growth priced into Ribbon Communications Inc (+16.8 % per year a year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of Ribbon Communications Inc (RBBN)?
The free-cash-flow yield on the price is 7.96 %: that much free cash flow Ribbon Communications Inc produces per unit of market value. When it exceeds the discount rate of our models (12.1 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Ribbon Communications Inc (RBBN)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Ribbon Communications Inc it is $5.46 per share (as of Sep 23, 2026), against a price of $1.82. It is the blended result of 24 valuation models (cash flow, earnings, asset, dividend).
Is Ribbon Communications Inc stock overvalued or undervalued in 2026?
As of Sep 23, 2026, RBBN trades below its calculated fair value: price $1.82, fair value $5.46, a gap of about +200% (undervalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of RBBN?
No. The price is what the market pays today ($1.82); the fair value is what the company's own numbers justify ($5.46). For Ribbon Communications Inc the two are $3.64 per share apart. That gap is exactly why we show both numbers side by side.
How much is Ribbon Communications Inc worth?
The market values Ribbon Communications Inc at about $439M (market capitalisation, as of Sep 23, 2026). Per share that is $1.82; our models calculate a fair value of $5.46 per share.
What do the bullish and bearish scenarios say about RBBN?
Our models span a range for Ribbon Communications Inc: cautious scenario $2.85, base $5.46, optimistic $9.53 per share (as of Sep 23, 2026, price $1.82). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of RBBN?
Ribbon Communications Inc trades at a price-to-earnings ratio of 10.7 (as of Sep 23, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of $5.46 is built from several models across several years. Other multiples: PEG 0.6, P/B 1.0, P/S 0.5, EV/EBITDA 10.1.
What is the PEG ratio of RBBN?
The PEG ratio of Ribbon Communications Inc is 0.57 (P/E divided by earnings growth, as of Sep 23, 2026). That is below 1, so growth is priced more cheaply than the earnings multiple alone suggests.
How solid is the balance sheet of Ribbon Communications Inc (RBBN)?
Balance-sheet figures for Ribbon Communications Inc (as of Sep 23, 2026): return on equity 7.8%, debt of 0.72 per unit of equity. They feed the Quality Score of 44/100, which measures business quality independently of the share price.
How far is RBBN from its 52-week high?
Ribbon Communications Inc trades at $1.82, about 55% below its 52-week high of $4.04 and 11% above the low of $1.64 (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of $5.46 is for.
Which stocks are comparable to Ribbon Communications Inc?
From the same area (Technology) we also value SAP SE, Salesforce, Inc, Shopify Inc, ServiceNow, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Ribbon Communications Inc stock attractive at the current price?
The data as of Sep 23, 2026: price $1.82, calculated fair value $5.46 (+200%), Quality Score 44/100, from 24 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of RBBN calculated?
We run Ribbon Communications Inc through 24 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $5.46, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.0 % above its aggregate fair value. Ribbon Communications Inc currently trades 200 % below its own fair value, and the market average says nothing about that. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Ribbon Communications Inc (RBBN)?
The closing price on Sep 24, 2026 was $1.82. Our model-based fair value is $5.46, about +200% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Ribbon Communications Inc right now?
The large discount to fair value meets weak quality (44/100). That raises the risk this is a value trap rather than a bargain. The price is below even our cautious bear case ($2.85). The market is more pessimistic than our downside scenario. The model range is unusually wide ($2.85 to $9.53). The outcome hinges heavily on assumptions, so read the point estimate with caution. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.
Key figures of Ribbon Communications Inc
How large is the market capitalisation of Ribbon Communications Inc (RBBN)?
The market capitalisation of Ribbon Communications Inc is $439M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Ribbon Communications Inc (RBBN)?
The price-to-sales ratio of Ribbon Communications Inc is 0.50 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Ribbon Communications Inc (RBBN)?
Earnings per share at Ribbon Communications Inc are $0.1700 (price ÷ EPS = P/E 10.7). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Ribbon Communications Inc (RBBN)?
The dividend yield of Ribbon Communications Inc is 0.6% (payout 6.7%). Yearly dividend relative to the share price. 3% pays 3 per 100 invested. Below: how much of profit is used for it.
What is the net margin of Ribbon Communications Inc (RBBN)?
The net margin of Ribbon Communications Inc is 4.7% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Ribbon Communications Inc (RBBN)?
The return on equity (ROE) of Ribbon Communications Inc is 7.8% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Ribbon Communications Inc (RBBN)?
On an EBIT basis the return on assets of Ribbon Communications Inc is −1.9% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Ribbon Communications Inc (RBBN)?
The operating margin of Ribbon Communications Inc is −18.2% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Ribbon Communications Inc (RBBN)?
Revenue at Ribbon Communications Inc is growing −10.3% versus a year earlier (3y avg +1.0%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Ribbon Communications Inc (RBBN)?
Earnings per share at Ribbon Communications Inc are growing +12.7% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Ribbon Communications Inc (RBBN) carry?
The net debt of Ribbon Communications Inc is $309M (fiscal year 2025, ≈ 11.8 yrs of FCF). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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Thin data
Sep 23, 2026