# Ribbon Communications Inc. (RBBN)

- Sector: Technology · Industry: Software Application
- SEC CIK: 0001708055 ([filings on EDGAR](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001708055))
- Full page: https://inspectstocks.com/stocks/rbbn
- Data as of: price 2026-09-28; newest filing used 2026-07-31; latest fiscal period ended 2026-06-30

## Grade

**D** on the growth-and-cash rubric, 2 of 5 checks passed.

| Check | Result | Now | Before |
| --- | --- | --- | --- |
| Revenue growing overall | failed | $797.6M | $837.5M |
| Revenue growing recently | failed | $797.6M | $844.6M |
| Free cash flow positive | passed | $7.4M |  |
| Free cash flow growing overall | passed | $7.4M | -$1.2M |
| Free cash flow growing recently | failed | $7.4M | $26.1M |

Business quality (the + / − mark): 2 of 6 checks passed.

| Check | Result | Now | Before |
| --- | --- | --- | --- |
| Profitable | passed | 2.0% |  |
| Healthy profit margin | failed | 2.0% |  |
| Strong operating margin | failed | -4.0% |  |
| Good return on equity | failed | 3.5% |  |
| Debt under control | passed | 0.90 |  |
| Turns sales into cash | failed | 0.9% |  |

How the grade works: the letter counts failed checks (none → A, one → B, two → C, three → D, four or more → F). It is built from SEC filings only — the share price never enters it — and describes the business, not whether the stock is worth buying.

## Key figures

In US dollars, as filed.

| Measure | Value |
| --- | --- |
| Revenue, trailing twelve months | $797.6M |
| Net income, trailing twelve months | $15.6M |
| Free cash flow, trailing twelve months | $7.4M |
| Net margin | 2.0% |
| Operating margin | -4.0% |
| Return on equity | 3.5% |
| Debt to equity | 0.90 |
| Diluted EPS, trailing twelve months | $0.08 |
| Share price | $1.74 |
| Market value | $310.3M |
| Price / earnings | 21.7x |
| Price / sales | 0.4x |

## More on this company

- [Overview](https://inspectstocks.com/stocks/rbbn)
- [Financial statements](https://inspectstocks.com/stocks/rbbn/financials)
- [Competitors](https://inspectstocks.com/stocks/rbbn/peers)
- [Earnings](https://inspectstocks.com/stocks/rbbn/earnings)

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Source: InspectStocks, built from the company’s own SEC filings. This describes a business — it is not investment advice and not a recommendation to buy or sell anything.