Ribbon Communications Inc. (RBBN) P/E Ratio History
Historical price-to-earnings valuation from 2004 to 2026
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RBBN Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 6, 2026, Ribbon Communications Inc. (RBBN) trades at a price-to-earnings ratio of 12.2x, with a stock price of $2.68 and trailing twelve-month earnings per share of $0.18.
The current P/E is 76% below its 5-year average of 50.6x. Over the past five years, RBBN's P/E has ranged from a low of 11.0x to a high of 143.9x, placing the current valuation at the 5th percentile of its historical range.
Compared to the Communication Services sector median P/E of 15.2x, RBBN trades at a 20% discount to its sector peers. The sector includes 108 companies with P/E ratios ranging from 0.1x to 187.4x.
Relative to the broader market, RBBN trades at a notable discount to the S&P 500 median P/E of 25.2x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our RBBN DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
RBBN P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $12B | 353.3 | 77.42Best | +225%Best | |
| $363B | 35.9 | - | +0% | |
| $82B | 678.6 | - | +47% | |
| $3B | 170.5 | - | +158% | |
| $178B | 8.4Lowest | - | +104% | |
| $200B | 11.7 | - | -2% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
RBBN Historical P/E Data (2004–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | $2.12 | $0.17 | 12.6x | -78% | |
| FY2025 Q4 | Wed Dec 31 2025 00:00:00 GM | $2.88 | $0.22 | 13.2x | -77% |
| FY2021 Q3 | $5.98 | $0.25 | 23.9x | -58% | |
| FY2021 Q2 | Wed Jun 30 2021 00:00:00 GM | $7.61 | $0.69 | 11.0x | -81% |
| FY2021 Q1 | Wed Mar 31 2021 00:00:00 GM | $8.21 | $0.48 | 17.0x | -70% |
| FY2020 Q4 | $6.56 | $0.52 | 12.5x | -78% | |
| FY2019 Q3 | Mon Sep 30 2019 00:00:00 GM | $5.84 | $0.15 | 38.2x | -33% |
| FY2019 Q2 | Sun Jun 30 2019 00:00:00 GM | $4.89 | $0.05 | 106.1x | +85% |
| FY2010 Q2 | Wed Jun 30 2010 00:00:00 GM | $13.55 | $0.13 | 103.3x | +80% |
| FY2010 Q1 | Wed Mar 31 2010 00:00:00 GM | $13.15 | $0.23 | 58.3x | +2% |
| FY2007 Q3 | Sun Sep 30 2007 00:00:00 GM | $30.50 | $0.73 | 41.6x | -27% |
| FY2007 Q2 | Sat Jun 30 2007 00:00:00 GM | $42.60 | $1.54 | 27.6x | -52% |
Average P/E for displayed period: 57.4x
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Start ComparisonRBBN — Frequently Asked Questions
Quick answers to the most common questions about buying RBBN stock.
Is RBBN stock overvalued or undervalued?
RBBN trades at 12.2x P/E, below its 5-year average of 50.6x. At the 5th percentile of historical range, the stock is priced at a discount to its own history.
How does RBBN's valuation compare to peers?
Ribbon Communications Inc. P/E of 12.2x compares to sector median of 15.2x. The discount suggests lower growth expectations or higher risk.
What is RBBN's PEG ratio?
RBBN PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2004-2026.