# Ribbon Communications Inc. (RBBN) fundamentals

Data as of 2026-09-08. NASDAQ, United States. Sector: Communication Services / Diversified Telecommunication Services. Price $1.99, market value $356 million.

## Valuation
- **P/E (trailing): 24.9×** (5-yr avg 13.1×, 3-yr avg 13.1×). Ribbon Communications Inc. trades at 24.9× trailing earnings, well above its own five-year average of 13.1×: investors are paying up relative to the company's past. The Communication Services median in the September 2026 study was 21.1×. Forward P/E is 12.8×, lower than trailing, so analysts expect earnings to grow.
- **PEG: 0.07**. A PEG of 0.07 means the P/E is low relative to expected earnings growth: the market is not paying much for that growth.
- **Price / sales: 0.4×**. Each dollar of revenue is priced at 0.4×, a low multiple typical of thin-margin businesses or out-of-favour stocks.
- **Price / book: 0.9×**. The shares trade below book value, which can signal a bargain or a balance sheet the market doubts.
- **Free-cash-flow yield: 2.1%** (5-yr avg 0.5%). Free cash flow equals 2.1% of the market value, above its five-year average of 0.5%, so the shares are cheaper on cash than they have usually been.
- **Earnings yield: 4.0%**. The inverse of the P/E: 4.0% of the price is earned each year.

## Profitability
- **Gross margin: 48.8%**. Ribbon Communications Inc. keeps 48.8% of revenue after the direct cost of what it sells.
- **Operating margin: -4.0%**. Operating margin is negative: the business loses money before interest and tax.
- **Net margin: 4.7%**. 4.7% of each dollar of sales reaches the bottom line.
- **Return on equity: 8.8%**. 8.8% on shareholders' equity is weak; the business earns little on the capital its owners have in it.
- **Return on invested capital: -3.7%**. Return on all capital, debt included, is -3.7%: close to or below the cost of capital, so growth may not create value.
- **Return on assets: 1.3%**. Each dollar of assets produces 1.3% of profit.

## Growth
- **Revenue growth (1 yr): 1.3%** (3-yr 1.0%/yr, 5-yr 0.0%/yr). Revenue grew 1.3% over the last year, against 0.0% a year compounded over five years: growth is accelerating.
- **EPS growth (1 yr): 171.0%** (5-yr -18.5%/yr). Earnings per share rose 171.0%, faster than revenue, so margins expanded or the share count shrank.

## Financial health
- **Debt to equity: 0.74**. Debt is 0.74 times equity, moderate leverage.
- **Altman Z-score: 1.49**. A Z-score of 1.49 is in the distress zone, a signal to examine the balance sheet closely.
- **Piotroski F-score: 5/9**. 5 of 9 checks pass: mixed.

## Dividends
- **Dividend: none**. Ribbon Communications Inc. does not currently pay a dividend.

## Price and momentum
- **Total return (1 yr): -52.2%** (YTD -30.9%, 3-mo -29.7%). The shares are down 52.2% over twelve months including dividends.
- **From 52-week high: -51.9%** (10.6% above the low). Trading 52% below its 52-week high, deep in a drawdown.
- **200-day average: below**. The price sits below its 200-day moving average, the usual definition of a downtrend.
- **RSI (14-day): 43**. An RSI of 43 is neutral.
- **Beta (1 yr): 1.32** (volatility 60%). Beta of 1.32 against the S&P 500: the shares move much more than the market.

Live score and charts: https://foliofundamentals.com/analyzer?s=RBBN · Page: https://foliofundamentals.com/stocks/rbbn

Not investment advice.