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what it is
Ribbon sells software and hardware that moves voice and data traffic for carriers and businesses.
how it gets paid
Last year Ribbon Communications made $845M in revenue. IP Optical Networks was the main engine at $333M, or 39% of sales.
why it's growing
Revenue grew about 1% last year (GAAP). Full-year GAAP gross margin was ~49.8%. It says the company still makes a decent spread before overhead eats the lunch.
what just happened
Q4 2025 revenue was $227M; GAAP EPS was $0.50 (non-GAAP EPS $0.59).
At a glance
C++ balance sheet — some cracks in the foundation
15/100 earnings predictability — expect surprises
9.6x trailing p/e — the market's not buying it — or you found a deal
8.0% return on capital — nothing to write home about
$0.22 fy2025 GAAP EPS
xvary composite: 40/100 — below average
What they do
Ribbon sells software and hardware that moves voice and data traffic for carriers and businesses.
You do not swap telecom gear fast. Ribbon sells into voice, IP optical, and 5G networks across the U.S., Europe, the Middle East, Africa, Japan, and Asia Pacific. That reach helps, but $324M of long-term debt sits beside $845M of annual revenue, so the moat is more sticky than strong.
How they make money
$845M
annual revenue · their business grew +1.3% last year
IP Optical Networks
$333M
Cloud & Edge Software
$180M
Support & Maintenance
$113M
Professional Services
$152M
Hardware & Legacy Switching
$67M
The products that matter
telecom transport hardware and software
IP Optical Networks
$333M · 39% of revenue
it's a $333M business that grew 1% last year. steady is fine, but this segment is not your growth engine.
39% of revenue
cloud-native voice and messaging software
Cloud & Edge Communications
$512M · 61% of revenue
this $512M segment is the majority of the company, but it was flat last year. that's exactly why the Feb. 25, 2026 AWS partnership matters — it needs to become revenue, not just narrative.
61% of revenue
Key numbers
$845M
annual revenue
That is the whole business size. It is large enough to matter, but small enough that every contract loss shows up fast.
9.6x
trailing p/e
You are paying 9.6 times trailing earnings, which is cheap only if the profits stay real.
47%
debt share
Long-term debt is 47% of capital, so the balance sheet still has a heavy anchor.
49.8%
gross margin (FY GAAP)
That means the company keeps just under 50 cents of each sales dollar before overhead (full-year GAAP). The business has room, but not much slack.
Financial health
C++
strength
- balance sheet grade C++ — below average — limited financial resources
- risk rank 3 — safer than 50% of stocks
- price stability 15 / 100
- long-term debt $324M (47% of capital)
C++ — balance sheet grade and long-term debt are flagged. this stock carries more risk than average.
Total return vs. market
Return history isn't available for RBBN right now.
source: institutional data · return history unavailable
What just happened
beat estimates
Q4 2025 revenue was $227M; GAAP EPS was $0.50 (non-GAAP $0.59).
Revenue was down vs. prior year versus Q4 2024 ($251M), but the quarter still beat many non-GAAP EPS expectations. Q4 GAAP gross margin was 53.3%. Full-year GAAP operating income was slightly negative (~-$3M on $845M revenue), which matches the “almost breakeven at the operating line” story.
$227M
revenue (Q4)
$0.50
eps (GAAP)
53.3%
gross margin (Q4 GAAP)
the number that mattered
The important number was Q4 GAAP gross margin at 53.3% (full-year GAAP ~49.8%). It says the product spread is still there; the debate is timing of deals and cost discipline.
source: company earnings report, 2026
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What could go wrong
the top risk is another year of flat carrier spending showing up in Ribbon's $840M–$875M revenue guide.
med
revenue stalls again
2025 revenue was $845M. The 2026 guide of $840M–$875M says management sees anything from a small decline to modest growth.
That is a narrow margin for error in a stock that already fell 25% on the outlook.
med
software mix does not improve
Q4 non-GAAP gross margin fell 2.7 percentage points to 55.4% because software revenue was lighter. Higher-margin cloud software is supposed to be the rescue story.
If mix stays weak, EBITDA pressure follows and the valuation discount probably stays deserved.
med
carrier concentration cuts both ways
Ribbon sells into large telecom customers, and an $845M revenue base is not big enough to hide a delayed deal or smaller order cycle.
You do not need a disaster here. One bad spending pause can move the whole year.
med
the balance sheet limits patience
Long-term debt is $324M, or 47% of capital, and the balance sheet grade grade is C++.
If growth keeps stalling, you are relying on a balance sheet with limited room for strategic mistakes.
A weak guide already took 25% off the stock. That tells you the market sees very little cushion if growth or mix slips again.
source: institutional data · regulatory filings · risk analysis
Pay attention to
earnings
q1 2026 earnings report
Estimated report date is May 5, 2026. You want to see whether the weak full-year guide already starts to look conservative or still too hopeful.
cloud mix
cloud & edge growth turns positive again
This segment is already $512M, or 61% of revenue. Flat growth is not enough if it is supposed to carry the rerating story.
margin
gross margin after the 55.4% q4 print
Gross margin tells you whether higher-value software is actually showing up in the mix. Another step down would matter more than a small EPS beat.
guidance
whether management can move above the $875M high end
If the guide stays boxed in at $840M–$875M, you still own a cheap stock with a growth problem. If it moves higher, the story changes.
Analyst rankings
earnings predictability
15 / 100
low predictability. in human-speak, analysts do not trust this business to deliver smooth quarters.
risk rank
3
middle of the pack on risk. safer than some small caps, but nowhere close to defensive.
price stability
15 / 100
the stock's trading history is jumpy. when the story changes, the chart usually notices fast.
source: institutional data
Institutional activity
institutional ownership data for RBBN is being compiled.
source: institutional data
Price targets
3-5 year target range
n/a
n/a
$2
current price
n/a
target midpoint · n/a from current
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