Stock fact sheet · data as of
Ribbon Communications Inc. (RBBN): fair value, margin of safety and Wheel Score
Technology · Software - Application · United States · Value
Is RBBN undervalued?
RBBN has a margin of safety of 64%: the stock closed at 1.46 on 16 Oct 2026 against a GLS average fair value of 4.05. 6 of the 7 valuation models that produced a number sit above the price. Our screens treat a discount this large as a strong starting point for a cash-secured put, not as a verdict - the fair value is a model output, and a wide gap can mean the models are missing something the market knows.
The 7 models disagree widely: EPV gives 0.9820 while DCF gives 10.94. A spread that wide means the average is sensitive to which methods you trust; the model table below shows where each one lands, and the Quote page lets you switch any of them off.
The nightly engine files RBBN under Value: positive earnings at a P/E of 18 or less.
Nine valuation models for RBBN
Each model turns the latest filed numbers into a value per share; the GLS fair value is the simple average of the ones that produce a positive number. The last two rows are shown for reference and never enter the average. The Quote page lets you switch any model off and add your own margin of safety.
| Model | Value | vs price | What it measures |
|---|---|---|---|
| DCF | 10.94 | +649% | Present value of the projected free cash flows, discounted at the cost of capital |
| Graham Number | 2.10 | +44% | The most a defensive investor pays for the earnings and book value per share |
| Graham Growth | 5.06 | +246% | Graham's growth formula: EPS × (8.5 + 2 × growth), adjusted for bond yields |
| Lynch | 2.21 | +51% | EPS × the earnings growth rate (PEG of 1), growth capped at 25% |
| GLS Growth | 5.41 | +271% | EPS compounded ten years at the blended growth rate, discounted back at 15% a year |
| 10 Cap | - | - | Owner's earnings (operating cash flow less maintenance capex) capitalised at 10%; no value tonight |
| Payback Time | 1.65 | +13% | Eight years of compounded free cash flow: the price at which the business pays for itself |
| DDM | - | - | Dividend discount model: next year's dividend ÷ (10% − 3% growth); needs a dividend; no value tonight |
| EPV | 0.9820 | -33% | Earnings power value: current EPS capitalised at 9% with no growth |
| Zombie (liquidation) | -1.73 | -218% | Current assets less all liabilities, per share: the balance-sheet floor. Not in the average |
| Wall St target | 3.30 | +126% | Analysts' average 12-month price target. Not in the average |
Quality and financial health
Financial health is average - RBBN passes 5 of the nine Piotroski tests, which falls one point short of the Sunday Scan's "6 or more" rule. The Financials tab on the Quote page shows which tests fail. The GLS Moat score is low at 2.4 out of 10, which says the ten-year record of revenue, earnings, margins and returns on capital has been inconsistent - growth and shocks rather than steady compounding.
Returns on capital are thin or negative - ROIC 4.6%, ROE 8.8%, ROA 3.3% - with debt at 0.90 times equity and a free-cash-flow yield of 2.8%.
Ribbon Communications Inc. pays no dividend, so the DDM model does not apply and a covered-call holder earns only the premium and any price gain. Revenue comes mainly from Cloud and Edge 58%, IP Optical Networks 43% (quarter Q2 FY2026).
Institutional ownership scores 9/10, insider activity 5/10 and Congressional trading 5/10 on the GLS smart-money scales.
| Piotroski F-score | 5 / 9 | ROIC | 4.6% |
|---|---|---|---|
| GLS Moat | 2.4 / 10 | ROE | 8.8% |
| Debt / equity | 0.90 | ROA | 3.3% |
| Free-cash-flow yield | 2.8% | Payout ratio | 0% |
| Institutions | 9 / 10 | Insiders · Congress | 5 · 5 / 10 |
Wheel Score 57: Fair
RBBN scores 57 out of 100 on the Wheel Score (Fair band, 50-64): a usable but unremarkable fit for the wheel strategy. The parts: Value 25/25, Health 11/20, Moat 4/15, Premium 5/20, Stability 12/20. Premium (5/20) is where the points are missing.
Implied volatility is 155%, far above the range the wheel strategy is built for. The premium looks generous; the Wheel Score gives it only 5 of 20 Premium points because moves of that size can blow through any strike. Chain open interest is 3,405 contracts across all expiries - enough for the wheel at normal size.
Volume runs at 1.1M shares a day on a market cap of $261M, with a beta of 1.37 - a high beta, so the stock tends to move more than the market and a strike can be gapped through; the Stability part of the Wheel Score gives that 12 of 20.
| Part | Points | From | |
|---|---|---|---|
| Value | 25 / 25 | 64% margin of safety | |
| Health | 11 / 20 | Piotroski 5/9 | |
| Moat | 4 / 15 | moat 2.4/10 | |
| Premium | 5 / 20 | implied volatility 155% | |
| Stability | 12 / 20 | 1.1M shares/day, $261M cap, beta 1.37 |
The Wheel Score ranks ~7,400 US stocks for selling cash-secured puts and covered calls; it is updated nightly and is not a recommendation. The walkthrough lesson shows how the score fits into a trade, start to finish.
Upcoming events
Ribbon Communications Inc. reports earnings on 27 Oct 2026 (after the close) - inside the 14-day window the Sunday Scan avoids, because a put sold now would carry the report's gap risk.
Earnings, dividend, IPO, split and economic calendars for the whole market, filterable to your watchlists.
Similar stocks in Software - Application
The 12 companies below are the closest to Ribbon Communications Inc. by market cap within the Software - Application industry, each with its own fact sheet; the Compare page puts up to eight of them side by side.
| Stock | Close | Fair value | MoS | Wheel | Mkt cap |
|---|---|---|---|---|---|
| GLOO Gloo Holdings, Inc. | 3.26 | - | - | 39Weak | $268M |
| AZ A2Z Cust2Mate Solutions Corp. | 5.76 | - | - | 40Weak | $254M |
| ARQQ Arqit Quantum Inc. | 15.90 | 2.58 | -516% | 27Weak | $277M |
| XPER Xperi Inc. | 5.04 | 2.95 | -71% | 38Weak | $246M |
| EXFY Expensify, Inc. | 2.53 | 3.95 | +36% | 45Weak | $244M |
| TRVG trivago N.V. | 4.01 | 5.49 | +27% | 53Fair | $283M |
| RWWI Rand Worldwide, Inc. | 7.15 | 18.20 | +61% | 39No options | $240M |
| IMMR Immersion Corporation | 7.14 | 163.03 | +96% | 71Good | $237M |
| BLND Blend Labs, Inc. | 1.00 | 1.30 | +23% | 45Weak | $237M |
| MCAP MCAP Inc. | 9.50 | 27.95 | +66% | 38No options | $234M |
| CMRC Commerce.com, Inc. | 3.56 | 13.27 | +73% | 45Weak | $295M |
| EGHT 8x8, Inc. | 2.07 | 1.69 | -23% | 45Weak | $299M |
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Start free See the Sunday ScanQuestions about RBBN
Is RBBN undervalued right now?
By the GLS models, yes: at 1.46 the stock is 64% below the average fair value of 4.05 (data as of 16 Oct 2026). Whether the discount is deserved is the question to research next.
What is the Wheel Score of RBBN and what does it mean?
RBBN scores 57 out of 100 (Fair). The Wheel Score blends the margin of safety (25 points), Piotroski health (20), the GLS moat (15), the option premium on offer (20) and trading stability (20) into one number that ranks stocks for the wheel strategy - selling cash-secured puts, then covered calls if assigned. 80 and above is Prime, 65-79 Good, 50-64 Fair, under 50 Weak.
What is the GLS fair value for RBBN?
4.05 per share as of 16 Oct 2026 - the simple average of the 7 valuation models (out of nine: DCF, Graham Number, Graham Growth, Lynch, GLS Growth, 10 Cap, Payback Time, DDM and EPV) that produced a positive value. The models run every night on the latest filings; the Quote page lets you switch any of them off and add a margin of safety of your own.
When does Ribbon Communications Inc. report earnings next?
The next earnings report is due on 27 Oct 2026 (after the close), 11 days from the data date of 16 Oct 2026. The Calendars page lists every upcoming report with its time of day.
Does RBBN have listed options, and how liquid are they?
Yes. The nightly snapshot found 30 listed contracts with 3,405 open interest across all expiries and implied volatility of 155% on the near-the-money contracts. The Options scanner lists the cash-secured put and covered call set-ups with premium and annualised yield worked out.