Ribbon Communications Inc. key statistics and ratios

In fiscal 2025, Ribbon Communications Inc. had return on equity of 9.3%, an operating margin of -0.4%, debt equal to 76.2% of equity and a current ratio of 1.44. Each ratio below is calculated from the figures on its income statement, balance sheet and cash flow pages.

Financial ratios

US$ thousands unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Ribbon Communications Inc.: financial ratios, annual
Fiscal year	2015Dec 2015	2016Dec 2016	2017Dec 2017	2018Dec 2018	2019Dec 2019	2020Dec 2020	2021Dec 2021	2022Dec 2022	2023Dec 2023	2024Dec 2024	2025Dec 2025	LTMSept 2026
Gross margin	64.9%	66.4%	61.1%	60.1%	56.3%	53.4%	52.6%	48.9%	49.4%	52.7%	49.8%	48.3%
Operating margin	−12.5%	−5.4%	−16.7%	−11.3%	−33.6%	0.2%	−13.9%	−5.9%	−2.9%	2.0%	−0.4%	−3.6%
Net margin	−12.8%	−5.5%	−10.7%	−13.3%	−23.1%	10.5%	−21.0%	−12.0%	−8.0%	−6.5%	4.7%	2.3%
Free-cash-flow margin	4.8%	5.8%	1.2%	−3.0%	8.0%	8.9%	0.2%	−4.5%	0.9%	3.3%	3.1%	−3.6%
Return on equity	−14.3%	−6.3%	−8.4%	−12.7%	−24.2%	15.1%	−29.2%	−18.8%	−13.6%	−12.7%	9.3%	4.4%
Return on assets	—	−4.5%	−5.8%	−8.2%	−14.7%	7.5%	−12.2%	−7.5%	−5.5%	−4.7%	3.3%	1.6%
Asset turnover	—	0.82	0.54	0.62	0.64	0.71	0.58	0.63	0.69	0.72	0.71	0.68
Current ratio	—	2.31	1.16	0.96	1.35	1.37	1.40	1.45	1.23	1.41	1.44	1.32
Debt to equity	0.0%	0.0%	6.5%	18.6%	11.7%	56.5%	70.2%	63.7%	52.0%	86.1%	76.2%	94.0%
Effective tax rate	—	—	—	—	—	5.1%	—	—	—	—	—	—
R&D as % of revenue	31.3%	28.8%	30.8%	25.2%	25.1%	23.1%	23.1%	24.8%	23.1%	21.6%	21.2%	22.3%
Capital spending as % of revenue	3.1%	1.8%	1.2%	1.4%	1.9%	3.2%	2.0%	1.3%	1.1%	2.7%	3.0%	1.3%
Free cash flow ÷ net income	—	—	—	—	—	84.5%	—	—	—	—	65.7%	−156.6%
Dividends and buybacks ÷ free cash flow	65.6%	65.4%	0.0%	—	10.1%	0.0%	0.0%	—	—	—	34.4%	—

US$ thousands unless shown otherwise. Fiscal quarters.

Ribbon Communications Inc.: financial ratios, quarterly
Quarter	2024 Q4Dec 2024	2025 Q1Mar 2025	2025 Q2Jun 2025	2025 Q3Sept 2025	2025 Q4Dec 2025	2026 Q1Mar 2026	2026 Q2Jun 2026	2026 Q3Sept 2026
Gross margin	55.7%	45.4%	49.6%	50.1%	53.3%	42.9%	47.0%	48.2%
Operating margin	13.2%	−10.8%	1.9%	1.3%	4.1%	−19.5%	−6.4%	2.6%
Net margin	2.5%	−14.5%	−5.0%	−5.6%	39.2%	−21.2%	−14.0%	−4.2%
Free-cash-flow margin	21.4%	−8.7%	−2.9%	9.7%	12.0%	−15.4%	−8.2%	−7.1%
Current ratio	1.41	1.39	1.38	1.43	1.44	1.37	1.31	1.32
Debt to equity	83.3%	88.2%	90.8%	93.0%	74.2%	79.2%	83.9%	84.3%
R&D as % of revenue	17.9%	24.0%	20.3%	21.3%	19.7%	27.3%	23.3%	20.3%

Returns use average equity or assets over the year. Return on equity is left blank when equity is negative or so small that the ratio says nothing (above ±200%); interest cover is left blank above 200 times. Price-based ratios such as P/E are on the valuation page.

Financial health

1 of 6 checks passed · September 30, 2026

What it owns · $1.2bn

Short-term assets $427mLonger-term assets $724m

What it owes, and who funded it · $1.2bn

Short-term liabilities $323mLonger-term liabilities $439mShareholders' equity $389m

Short-term assets cover short-term liabilities $427m of assets due within a year against $323m of liabilities due within a year.
Short-term assets cover long-term liabilities $427m short-term assets against $439m of longer-dated liabilities.
More cash than debt $40m of cash against $328m of debt.
Debt below 40% of shareholders' equity Debt is 84% of equity.
Debt burden no higher than five years ago Debt to equity moved from 70% to 84% over five years.
A year's operating cash flow covers at least 20% of debt −$19m of operating cash flow against $328m of debt.
Operating profit covers interest at least five times over Interest not separately reported. Not assessable.

From Ribbon Communications Inc.'s latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Moat

54 /100

Moderate moat

How hard Ribbon Communications's competitive advantage looks for rivals to wear away, judged from 10 years of its own filings: returns on capital, pricing power, profit durability, cash conversion and discipline.

Returns on capital 20 / 20

Cash operating profit has been a median 15.3% of total assets over 9 years.
Pricing power 14 / 20

Gross margin has been a median 52.0%, moving by 5.8 percentage points (standard deviation) across 10 years.
Durability 10 / 20

Operating margin has been a median -5.8%; its worst year was -21.6%.
Cash conversion 6 / 20

Free cash flow was positive in 5 of 9 years, at a median 0.7% of revenue.
Discipline 10 / 20

The diluted share count rose 20.0% over five years; stock-based pay has been a median 2.1% of revenue.

AI disruption exposure: Medium. In this industry, AI could change how the product is made or sold, without replacing the core asset. The score above includes a 5-point deduction for that exposure (60 before it).

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

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Figures from Ribbon Communications Inc.'s SEC filings (10-K and 10-Q), retrieved October 29, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Ribbon Communications Inc.