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Ribbon Communications Inc. RBBN

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1.40 USD -0.14 (-9.10%)

Nov 5, 2026, 2:51 PM EST

1.38 Day range 1.53
1.28 52-week range 3.41
YTD
-51.39%
1 year
-56.52%

Financial health

Altman Z-Score

-0.98 Distress zone

Bankruptcy-risk model: below 1.81 distress, above 2.99 safe.

Piotroski F-Score

3 / 9 Weak

Nine pass/fail tests of profitability, leverage and efficiency.

FMP rating

B+3 / 5 overall

  • DCF 5
  • Return on Equity 3
  • Return on Assets 2
  • Debt / Equity 1
  • P/E 3
  • P/B 5

Valuation

P/E 13.1×
FY 2016: -22.5×FY 2017: -12.9×FY 2018: -6.5×FY 2019: -2.6×FY 2020: 10.3×FY 2021: -5.0×FY 2022: -4.4×FY 2023: -7.4×FY 2024: -13.4×FY 2025: 13.1×
FY 2016 5y median -5.0× FY 2025
P/S 0.6×
FY 2016: 1.2×FY 2017: 1.4×FY 2018: 0.9×FY 2019: 0.6×FY 2020: 1.1×FY 2021: 1.1×FY 2022: 0.5×FY 2023: 0.6×FY 2024: 0.9×FY 2025: 0.6×
FY 2016 5y median 0.6× FY 2025
P/B 1.1×
FY 2016: 1.4×FY 2017: 0.7×FY 2018: 0.8×FY 2019: 0.7×FY 2020: 1.3×FY 2021: 1.7×FY 2022: 0.8×FY 2023: 1.1×FY 2024: 1.8×FY 2025: 1.1×
FY 2016 5y median 1.1× FY 2025
P/FCF 19.5×
FY 2016: 21.4×FY 2017: 111×FY 2018: -28.6×FY 2019: 7.6×FY 2020: 12.2×FY 2021: 436×FY 2022: -11.0×FY 2023: 65.0×FY 2024: 26.5×FY 2025: 19.5×
FY 2016 5y median 26.5× FY 2025
EV/EBITDA 13.6×
FY 2016: 67.3×FY 2017: -34.2×FY 2018: -67.1×FY 2019: -6.9×FY 2020: 6.5×FY 2021: -11.3×FY 2022: -46.4×FY 2023: 17.4×FY 2024: 11.2×FY 2025: 13.6×
FY 2016 5y median 11.2× FY 2025
EV/Sales 1.0×
FY 2016: 1.1×FY 2017: 1.3×FY 2018: 0.9×FY 2019: 0.7×FY 2020: 1.5×FY 2021: 1.5×FY 2022: 0.9×FY 2023: 0.9×FY 2024: 1.2×FY 2025: 1.0×
FY 2016 5y median 1.0× FY 2025
FCF Yield 5.1%
FY 2016: 4.7%FY 2017: 0.9%FY 2018: -3.5%FY 2019: 13.2%FY 2020: 8.2%FY 2021: 0.2%FY 2022: -9.1%FY 2023: 1.5%FY 2024: 3.8%FY 2025: 5.1%
FY 2016 5y median 1.5% FY 2025

Profitability

Gross Margin 47.0%
FY 2016: 66.4%FY 2017: 61.1%FY 2018: 53.4%FY 2019: 56.3%FY 2020: 53.4%FY 2021: 52.6%FY 2022: 48.9%FY 2023: 45.9%FY 2024: 52.7%FY 2025: 47.0%
FY 2016 5y median 48.9% FY 2025
Operating Margin 2.4%
FY 2016: -5.4%FY 2017: -16.7%FY 2018: -11.3%FY 2019: -33.6%FY 2020: 0.2%FY 2021: -13.9%FY 2022: -5.9%FY 2023: -0.4%FY 2024: 2.0%FY 2025: 2.4%
FY 2016 5y median -0.4% FY 2025
Net Margin 4.7%
FY 2016: -5.5%FY 2017: -10.7%FY 2018: -13.3%FY 2019: -23.1%FY 2020: 10.5%FY 2021: -21.0%FY 2022: -12.0%FY 2023: -8.0%FY 2024: -6.5%FY 2025: 4.7%
FY 2016 5y median -8.0% FY 2025
ROE 8.8%
FY 2016: -6.4%FY 2017: -5.7%FY 2018: -13.0%FY 2019: -26.9%FY 2020: 12.9%FY 2021: -33.6%FY 2022: -18.9%FY 2023: -14.6%FY 2024: -13.4%FY 2025: 8.8%
FY 2016 5y median -14.6% FY 2025
ROIC -2.0%
FY 2016: -5.9%FY 2017: -5.3%FY 2018: -9.1%FY 2019: -30.2%FY 2020: 0.1%FY 2021: -9.6%FY 2022: -4.4%FY 2023: -0.4%FY 2024: 2.0%FY 2025: -2.0%
FY 2016 5y median -2.0% FY 2025
ROA 3.3%
FY 2016: -4.5%FY 2017: -3.9%FY 2018: -8.0%FY 2019: -16.0%FY 2020: 5.7%FY 2021: -13.1%FY 2022: -7.8%FY 2023: -5.8%FY 2024: -4.7%FY 2025: 3.3%
FY 2016 5y median -5.8% FY 2025

Growth (YoY)

Revenue 1.3%
FY 2016: 1.4%FY 2017: 30.6%FY 2018: 75.2%FY 2019: -2.6%FY 2020: 49.8%FY 2021: 0.1%FY 2022: -3.0%FY 2023: 0.8%FY 2024: 0.9%FY 2025: 1.3%
FY 2016 FY 2025
Operating Income 22.5%
FY 2016: 56.4%FY 2017: -305.8%FY 2018: -18.4%FY 2019: -189.7%FY 2020: 100.9%FY 2021: -7157.9%FY 2022: 59.0%FY 2023: 92.6%FY 2024: 568.7%FY 2025: 22.5%
FY 2016 FY 2025
EPS (diluted) 171.0%
FY 2016: 56.3%FY 2017: -114.3%FY 2018: -23.3%FY 2019: -60.8%FY 2020: 151.3%FY 2021: -296.7%FY 2022: 47.5%FY 2023: 38.1%FY 2024: 20.5%FY 2025: 171.0%
FY 2016 FY 2025
Free Cash Flow -4.8%
FY 2016: 20.6%FY 2017: -72.0%FY 2018: -528.9%FY 2019: 356.3%FY 2020: 66.8%FY 2021: -97.3%FY 2022: -2047.2%FY 2023: 119.1%FY 2024: 259.9%FY 2025: -4.8%
FY 2016 FY 2025

Financial Health

Current Ratio 1.4×
FY 2016: 2.3×FY 2017: 1.2×FY 2018: 1.0×FY 2019: 1.4×FY 2020: 1.4×FY 2021: 1.4×FY 2022: 1.4×FY 2023: 1.2×FY 2024: 1.4×FY 2025: 1.4×
FY 2016 5y median 1.4× FY 2025
Quick Ratio 1.2×
FY 2016: 2.1×FY 2017: 1.1×FY 2018: 0.9×FY 2019: 1.3×FY 2020: 1.2×FY 2021: 1.2×FY 2022: 1.2×FY 2023: 1.0×FY 2024: 1.2×FY 2025: 1.2×
FY 2016 5y median 1.2× FY 2025
Debt / Equity 0.9×
FY 2016: 0.0×FY 2017: 0.1×FY 2018: 0.1×FY 2019: 0.2×FY 2020: 0.7×FY 2021: 0.8×FY 2022: 0.7×FY 2023: 0.6×FY 2024: 0.9×FY 2025: 0.9×
FY 2016 5y median 0.8× FY 2025
Net Debt / EBITDA 5.2×
FY 2016: -7.7×FY 2017: 1.1×FY 2018: -4.4×FY 2019: -1.0×FY 2020: 1.8×FY 2021: -3.1×FY 2022: -19.6×FY 2023: 6.0×FY 2024: 3.2×FY 2025: 5.2×
FY 2016 5y median 3.2× FY 2025
Interest Coverage 0.5×
FY 2016: -136×FY 2017: -78.9×FY 2018: -14.5×FY 2019: -42.1×FY 2020: 0.1×FY 2021: -5.2×FY 2022: -2.9×FY 2023: -0.1×FY 2024: 0.5×FY 2025: 0.5×
FY 2016 5y median -0.1× FY 2025

Dividends

Dividend Yield 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025
Payout Ratio 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025

Annual · latest fiscal year ends 2025-12-31