The Filing Desk

InterDigital vs Ribbon Communications

InterDigital IDCC · Ribbon Communications RBBN · Communications Equipment

Ribbon Communications reported revenue of $845 million in fiscal 2025, about the same as InterDigital's $834 million in fiscal 2025. InterDigital's revenue fell 4.0% in its latest year, and Ribbon Communications' grew 1.3%. InterDigital had an operating margin of 55.3%, against -0.4% at Ribbon Communications. Free cash flow was $529 million at InterDigital and $26 million at Ribbon Communications.

Side by side

InterDigitalRibbon Communications
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$834M$845M
Revenue growth−4.0%1.3%
Revenue growth a year, last 5 years18.4%0.0%
Gross margin—49.8%
Operating margin55.3%−0.4%
Net margin48.8%4.7%
Free cash flow$529M$26M
Free cash flow margin63.4%3.1%
Return on capital113.5%−0.4%
Net debt to EBITDA−1.4x4.3x
Dividends and buybacks$163M$9M
Change in diluted share count16.0%3.3%
Last close$285.28$1.35
P/E at the last close31.7×6.1×
Insider trades, last 12 monthssold $26.5 million—
Piotroski F-score6 of 86 of 9
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
InterDigitalRibbon Communications
Operating margin
Percent of revenue
InterDigitalRibbon Communications
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
InterDigitalRibbon Communications

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the InterDigital and Ribbon Communications pages.