Calix vs Tenable
Calix reported revenue of $1.0 billion in fiscal 2025, about the same as Tenable's $999 million in fiscal 2025. Calix's revenue grew 20.3% in its latest year, and Tenable's grew 11.0%. Calix had an operating margin of 2.1%, against -0.9% at Tenable. Free cash flow was $116 million at Calix and $255 million at Tenable.
Side by side
| Calix | Tenable | |
|---|---|---|
| Latest fiscal year | FY2025, Dec 31, 2025 | FY2025, Dec 31, 2025 |
| Revenue | $1.0B | $999M |
| Revenue growth | 20.3% | 11.0% |
| Revenue growth a year, last 5 years | 13.1% | 17.8% |
| Gross margin | 56.8% | 78.1% |
| Operating margin | 2.1% | −0.9% |
| Net margin | 1.8% | −3.6% |
| Free cash flow | $116M | $255M |
| Free cash flow margin | 11.6% | 25.5% |
| Return on capital | — | — |
| Net debt to EBITDA | — | — |
| Dividends and buybacks | $94M | $248M |
| Change in diluted share count | 5.2% | 1.1% |
| Last close | $30.60 | $42.13 |
| P/E at the last close | 44.3× | — |
| Insider trades, last 12 months | sold $6.5 million | bought $616,245, sold $3.1 million |
| Piotroski F-score | — | — |
Amounts in each company's own currency, US$ 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
CalixTenable
Operating margin
Percent of revenue
CalixTenable
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
CalixTenable