Ribbon Communications Inc.
RBBN Technology Software Application
Ribbon Communications Inc.’s revenue for fiscal 2025 (year ended December 2025) was $844.6 million, up 1.28% from fiscal 2024. In the quarter to June 2026, revenue fell 12.8%, EPS fell 150.0%, free cash flow fell 152.4% and total debt fell 2.09%, each against the same quarter a year earlier. Revenue growth for three consecutive years, operating cash flow growth for three; insiders bought in the last twelve months.
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Ribbon Communications Inc. (RBBN) Altman Z-score
Ribbon Communications Inc.'s Altman Z-score for fiscal 2025 is −0.55, in the distress zone (below 1.81).
Altman Z-score, annual
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Annual newest first
| Period | Altman Z-score | Change (points) |
|---|---|---|
| FY2025 | −0.55 | (0.13) |
| FY2024 | −0.42 | 0.28 |
| FY2023 | −0.70 | (0.10) |
| FY2022 | −0.60 | (0.30) |
| FY2021 | −0.30 | (0.51) |
| FY2020 | 0.21 | 1.74 |
| FY2019 | −1.53 | (1.05) |
| FY2018 | −0.48 | 0.03 |
| FY2017 | −0.51 | 1.04 |
| FY2016 | −1.55 | (0.25) |
How fiscal 2025’s score is made up
| Component | This year | Year before | Result | Points |
|---|---|---|---|---|
| Working capital / total assets | 0.11 | — | 0.14 | |
| Retained earnings / total assets | (1.27) | — | −1.77 | |
| EBIT / total assets | 0.00 | — | −0.01 | |
| Market value of equity / total liabilities | 0.66 | — | 0.40 | |
| Sales / total assets | 0.70 | — | 0.70 | |
| Altman Z-score | Distress zone | −0.55 | ||
| Z″ Variant for non-manufacturing and asset-light companies (drops the sales/assets term, uses book equity) | Distress zone | −2.78 | ||
How the Altman Z-score works
Z = 1.2 × working capital ÷ total assets + 1.4 × retained earnings ÷ total assets + 3.3 × EBIT ÷ total assets + 0.6 × market value of equity ÷ total liabilities + 1.0 × revenue ÷ total assets (Altman, 1968). The market value of equity is the close on the last trading day of the fiscal year times weighted basic shares.
Z″ = 6.56 × working capital ÷ total assets + 3.26 × retained earnings ÷ total assets + 6.72 × EBIT ÷ total assets + 1.05 × book equity ÷ total liabilities (Altman, Hartzell and Peck, 1995), the variant for non-manufacturing and asset-light companies.
| Zone | Z | Z″ |
|---|---|---|
| Safe zone | above 2.99 | above 2.60 |
| Grey zone | 1.81–2.99 | 1.10–2.60 |
| Distress zone | below 1.81 | below 1.10 |
Not worked out for banks, insurers and REITs, whose balance sheets the model does not describe, nor when a figure is missing or there is no share price in the week to the fiscal year end.
Altman Z-score against peers
| Company | Altman Z-score |
|---|---|
| PLTS Platinum Analytics Cayman Limited compare | 136× |
| LAW CS Disco, Inc. compare | 4.3× |
| HKD AMTD Digital Inc. Sponsored ADR compare | 2.2× |
| API Agora, Inc. Sponsored ADR compare | 1.0× |
| SVCO Silvaco Group, Inc. compare | 0.1× |
| GLOO Gloo Holdings, Inc. compare | −0.4× |
| EGHT 8x8 Inc compare | −0.4× |
| RBBN Ribbon Communications Inc. | −0.5× |
| CURR Currenc Group Inc. compare | −0.9× |
What Altman Z-score is
The Altman Z-Score weighs working capital, retained earnings, operating profit, market value and sales against assets and debts to gauge the risk of distress.
1.2 × working capital ÷ total assets + 1.4 × retained earnings ÷ total assets + 3.3 × EBIT ÷ total assets + 0.6 × market value of equity ÷ total liabilities + 1.0 × revenue ÷ total assets