Latest Ratios: P/E Ratio 49.0x · EV/EBITDA 38.1x · ROE 18.5%. (1996–2025 historical series)
Price-based multiples — how expensive the stock is relative to earnings, sales, book value, and cash flow
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Market Cap | $11.2B | $10.1B | $5.8B | $7.6B | $3.9B | $3.4B | $2.0B | $1.5B | $832M | $1.6B | $1.6B |
| Enterprise Value | $11.1B | $9.9B | $5.7B | $7.5B | $3.8B | $3.5B | $2.0B | $1.6B | $894M | $1.6B | $1.6B |
| P/E Ratio → | 49.04 | 43.55 | 32.04 | 22.67 | — | 183.69 | — | — | — | — | 229.50 |
| P/S Ratio | 15.86 | 14.25 | 10.36 | 16.41 | 8.62 | 10.28 | 8.03 | 6.82 | 3.60 | 3.99 | 4.63 |
| P/B Ratio | 8.32 | 7.39 | 5.14 | 7.29 | 5.03 | 3.91 | 2.17 | 1.57 | 0.82 | 2.74 | 2.82 |
| P/FCF | 33.68 | 30.26 | 28.83 | 43.86 | 18.68 | 17.27 | 12.70 | 12.52 | 10.94 | 14.52 | 18.55 |
| P/OCF | 31.17 | 28.01 | 25.00 | 38.66 | 17.02 | 16.14 | 10.66 | 11.89 | 9.55 | 13.34 | 16.84 |
P/E links to full P/E history page with 30-year chart
Enterprise-value multiples — capital-structure-neutral measures of total business value
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EV / Revenue | — | 14.05 | 10.23 | 16.27 | 8.44 | 10.56 | 8.30 | 7.24 | 3.87 | 4.05 | 4.71 |
| EV / EBITDA | 38.08 | 34.17 | 26.26 | 52.13 | 30.20 | 46.71 | 318.25 | — | — | 14.19 | 16.24 |
| EV / EBIT | 42.59 | 35.09 | 28.27 | 39.78 | — | 101.99 | — | — | — | 29.11 | 44.85 |
| EV / FCF | — | 29.84 | 28.49 | 43.49 | 18.30 | 17.74 | 13.12 | 13.28 | 11.76 | 14.75 | 18.89 |
Margins and return-on-capital ratios measuring operating efficiency
Full margin charts and quarterly trend are on the Earnings History page
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Gross Margin | 76.0% | 76.0% | 75.4% | 69.1% | 69.0% | 70.0% | 62.8% | 65.3% | 74.3% | 78.1% | 77.9% |
| Operating Margin | 36.8% | 36.8% | 32.2% | 19.8% | 17.6% | 9.1% | -17.0% | -37.7% | -36.7% | 14.5% | 14.1% |
| Net Profit Margin | 32.6% | 32.6% | 32.3% | 72.4% | -3.1% | 5.6% | -16.4% | -40.4% | -68.3% | -5.8% | 2.0% |
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ROE | 18.5% | 18.5% | 16.7% | 36.7% | -1.7% | 2.1% | -4.3% | -9.1% | -19.9% | -4.1% | 1.3% |
| ROA | 16.0% | 16.0% | 13.8% | 29.4% | -1.3% | 1.5% | -3.1% | -6.7% | -14.0% | -2.7% | 0.9% |
| ROIC | 17.1% | 17.1% | 13.3% | 8.2% | 7.3% | 2.3% | -3.1% | -5.9% | -7.6% | 7.3% | 6.4% |
| ROCE | 19.5% | 19.5% | 14.7% | 8.9% | 8.6% | 2.8% | -3.4% | -6.6% | -8.3% | 7.6% | 6.7% |
Solvency and debt-coverage ratios — lower is generally safer
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Debt / Equity | 0.03 | 0.03 | 0.03 | 0.03 | 0.06 | 0.23 | 0.21 | 0.20 | 0.18 | 0.44 | 0.30 |
| Debt / EBITDA | 0.15 | 0.15 | 0.14 | 0.21 | 0.35 | 2.68 | 30.38 | — | — | 2.24 | 1.68 |
| Net Debt / Equity | — | -0.10 | -0.06 | -0.06 | -0.10 | 0.11 | 0.07 | 0.10 | 0.06 | 0.04 | 0.05 |
| Net Debt / EBITDA | -0.48 | -0.48 | -0.32 | -0.45 | -0.64 | 1.22 | 10.29 | — | — | 0.23 | 0.30 |
| Debt / FCF | — | -0.42 | -0.35 | -0.37 | -0.39 | 0.47 | 0.42 | 0.76 | 0.82 | 0.23 | 0.34 |
| Interest Coverage | 206.36 | 206.36 | 142.27 | 126.61 | -3.18 | 3.18 | -2.53 | -7.83 | -3.34 | 3.99 | 2.78 |
Net cash position: cash ($183M) exceeds total debt ($44M)
Short-term solvency ratios and asset-utilisation metrics
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Current Ratio | 8.20 | 8.20 | 8.44 | 7.08 | 4.16 | 2.56 | 8.15 | 7.71 | 7.62 | 2.80 | 4.23 |
| Quick Ratio | 7.84 | 7.84 | 7.89 | 6.67 | 4.00 | 2.53 | 7.98 | 7.60 | 7.52 | 2.76 | 4.12 |
| Cash Ratio | 6.32 | 6.32 | 5.89 | 4.78 | 2.47 | 1.82 | 5.85 | 4.73 | 4.01 | 2.48 | 3.36 |
| Asset Turnover | — | 0.46 | 0.41 | 0.37 | 0.45 | 0.27 | 0.20 | 0.17 | 0.17 | 0.44 | 0.43 |
| Inventory Turnover | 3.86 | 3.86 | 3.06 | 3.94 | 6.74 | 11.60 | 6.33 | 7.70 | 8.76 | 16.67 | 13.23 |
| Days Sales Outstanding | — | 83.91 | 96.97 | 105.91 | 145.32 | 199.76 | 247.04 | 372.13 | 359.12 | 24.04 | 22.88 |
Earnings, FCF, buyback, and dividend yields — total returns to shareholders
Full dividend history and growth charts are on the Dividend History page
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend Yield | — | — | — | — | — | — | — | — | — | — | — |
| Payout Ratio | — | — | — | — | — | — | — | — | — | — | — |
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Earnings Yield | 2.0% | 2.3% | 3.1% | 4.4% | — | 0.5% | — | — | — | — | 0.4% |
| FCF Yield | 3.0% | 3.3% | 3.5% | 2.3% | 5.4% | 5.8% | 7.9% | 8.0% | 9.1% | 6.9% | 5.4% |
| Buyback Yield | 0.1% | 0.1% | 2.0% | 1.3% | 2.6% | 3.0% | 2.5% | 0.0% | 6.0% | 3.2% | 0.0% |
| Total Shareholder Yield | 0.1% | 0.1% | 2.0% | 1.3% | 2.6% | 3.0% | 2.5% | 0.0% | 6.0% | 3.2% | 0.0% |
| Shares Outstanding | — | $110M | $109M | $111M | $109M | $115M | $113M | $111M | $108M | $110M | $113M |
Includes 30+ ratios · 30 years · Updated daily
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10-year return with dividends reinvested.
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Quick answers to the most common questions about buying RMBS stock.
Rambus Inc.'s current P/E ratio is 49.0x. The historical average is 66.7x. This places it at the 55th percentile of its historical range.
Rambus Inc.'s current EV/EBITDA is 38.1x. This enterprise value multiple compares the company's total value (equity + debt - cash) to its EBITDA. The historical average is 28.5x.
Rambus Inc.'s return on equity (ROE) is 18.5%. The historical average is 0.2%.
Based on historical data, Rambus Inc. is trading at a P/E of 49.0x. This is at the 55th percentile of its historical P/E range. Compare with industry peers and growth rates for a complete picture.
Rambus Inc. has 76.0% gross margin and 36.8% operating margin. Operating margin above 20% indicates strong pricing power and cost efficiency.
Rambus Inc.'s Debt/EBITDA ratio is 0.1x, indicating low leverage. A ratio below 2x is generally considered financially healthy.
Key Metrics
Top Statement Risk
DDR5 cyclicality and competition
Metrics are mathematically derived from official filings.
Margin Expansion Reflects Mix Shift
Gross margin climbed to 79.8% in 2026Q2 from 73.2% in 2024Q1, as reported in financial statements, indicating a favorable mix shift toward high-margin IP and royalties. Operating margin expanded to 35.1%, underscoring strong operating leverage.
The 6.6 percentage point gross margin expansion over ten quarters suggests the revenue mix is tilting toward licensing and silicon IP, which carry near-zero marginal costs. Operating margin improvement from 26.2% to 35.1% over the same period indicates that R&D and SG&A are scaling slower than revenue, a sign of disciplined cost control. However, the 2026Q2 net margin of 32.6% was slightly below the prior quarter's 33.2%, possibly reflecting tax timing or one-time items, warranting monitoring for sustainability.
ROIC Inflection Signals Compounding
ROIC improved from 2.5% in 2024Q1 to 4.1% in 2026Q2, as per quarterly data, indicating a clear upward trajectory in capital efficiency. This improvement is driven by margin expansion rather than asset turnover, which remained flat at 0.13.
The doubling of ROIC over the period suggests the company is beginning to compound returns on its invested capital, though the absolute level remains modest due to a large cash and intangible base. The stability of asset turnover at 0.12-0.13 implies that efficiency gains are coming from profitability, not asset utilization. As the product mix shifts toward higher-margin IP, ROIC should continue to rise, but investors should watch whether the pace of improvement can be sustained as the hardware segment grows.
Working Capital Drags on Cash Conversion
Cash conversion cycle lengthened to 131 days in 2026Q2 from 113 days in 2026Q1, as reported in financial statements, driven by a rise in DIO to 144 days. This suggests inventory build-up ahead of DDR5 demand, but DSO improved to 66 days.
The increase in DIO from 101 days in 2025Q4 to 144 days in 2026Q2 indicates a deliberate inventory build, likely to support product revenue growth, but it ties up cash. DSO improved from 100 days in 2024Q1 to 66 days in 2026Q2, reflecting better receivables management or a shift toward upfront licensing payments. The CCC remains elevated relative to asset-light peers, but the company's fortress balance sheet mitigates the risk; still, sustained inventory growth could pressure FCF if demand normalizes.
Minimal Debt Masks Strategic Flexibility
Debt-to-equity stands at 0.01 with interest coverage of 264x in 2026Q2, as per balance sheet data, indicating negligible leverage and ample capacity to fund growth or M&A. This fortress balance sheet provides a cushion against cyclical downturns.
Total debt of $21.8M against $1.5B equity underscores a virtually unlevered balance sheet, giving management significant strategic flexibility for tuck-in acquisitions or share repurchases. Interest coverage of 264x is exceptionally comfortable, but the low D/EBITDA of 0.27 suggests that even a modest increase in debt would not strain coverage. The risk is not financial distress but rather the opportunity cost of holding excess cash, which could be deployed more aggressively to enhance shareholder returns.
Liquidity Buffer Remains Fortress-Like
Current ratio improved to 9.75 in 2026Q2 from 6.98 in 2024Q1, with quick ratio at 9.08, as reported in financial statements, indicating a robust liquidity position. Cash of $87.7M provides ample cushion against working capital swings.
The current ratio of 9.75 is exceptionally high, reflecting a large cash and short-term investment balance relative to current liabilities. The quick ratio of 9.08 indicates that even without inventory, the company can cover its short-term obligations nearly nine times over. This liquidity buffer is critical given the lumpy nature of licensing revenue and potential inventory build-ups, but it also suggests capital is not being optimally deployed, which may weigh on ROIC.
P/E Misleads on Earnings Quality
The P/E ratio of 43.14 is commonly misapplied to Rambus because it fails to account for the lumpy nature of licensing revenue and stock-based compensation, as per reported figures. A more appropriate metric is EV/EBITDA or P/FCF, which better capture cash generation.
Rambus's earnings are subject to ASC 606 front-loading and one-time litigation settlements, making trailing P/E a noisy measure of value. The P/FCF of 29.63 is more informative, as it reflects the company's ability to convert earnings into cash, though SBC adjustments are necessary. EV/EBITDA of 33.45 is also useful, but it can be distorted by the large cash balance; a better approach is to use EV/EBIT or EV/EBITDA ex-cash. Investors should focus on forward multiples and cash-based metrics to avoid overpaying for non-recurring earnings spikes.