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RMBSRambus Inc.
$103.47$11.2B
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  4. Financial Ratios

Rambus Inc. (RMBS) Financial Ratios

Latest Ratios: P/E Ratio 49.0x · EV/EBITDA 38.1x · ROE 18.5%. (1996–2025 historical series)

Income StatementBalance SheetCash FlowRatios
AnnualQuarterly

RMBS Valuation Multiples

Price-based multiples — how expensive the stock is relative to earnings, sales, book value, and cash flow

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 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 →49.0443.5532.0422.67—183.69————229.50
P/S Ratio15.8614.2510.3616.418.6210.288.036.823.603.994.63
P/B Ratio8.327.395.147.295.033.912.171.570.822.742.82
P/FCF33.6830.2628.8343.8618.6817.2712.7012.5210.9414.5218.55
P/OCF31.1728.0125.0038.6617.0216.1410.6611.899.5513.3416.84

P/E links to full P/E history page with 30-year chart

RMBS EV Ratios

Enterprise-value multiples — capital-structure-neutral measures of total business value

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
EV / Revenue—14.0510.2316.278.4410.568.307.243.874.054.71
EV / EBITDA38.0834.1726.2652.1330.2046.71318.25——14.1916.24
EV / EBIT42.5935.0928.2739.78—101.99———29.1144.85
EV / FCF—29.8428.4943.4918.3017.7413.1213.2811.7614.7518.89

RMBS Profitability

Margins and return-on-capital ratios measuring operating efficiency

Margins

Full margin charts and quarterly trend are on the Earnings History page

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
Gross Margin76.0%76.0%75.4%69.1%69.0%70.0%62.8%65.3%74.3%78.1%77.9%
Operating Margin36.8%36.8%32.2%19.8%17.6%9.1%-17.0%-37.7%-36.7%14.5%14.1%
Net Profit Margin32.6%32.6%32.3%72.4%-3.1%5.6%-16.4%-40.4%-68.3%-5.8%2.0%

Return on Capital

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
ROE18.5%18.5%16.7%36.7%-1.7%2.1%-4.3%-9.1%-19.9%-4.1%1.3%
ROA16.0%16.0%13.8%29.4%-1.3%1.5%-3.1%-6.7%-14.0%-2.7%0.9%
ROIC17.1%17.1%13.3%8.2%7.3%2.3%-3.1%-5.9%-7.6%7.3%6.4%
ROCE19.5%19.5%14.7%8.9%8.6%2.8%-3.4%-6.6%-8.3%7.6%6.7%

RMBS Leverage & Debt

Solvency and debt-coverage ratios — lower is generally safer

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
Debt / Equity0.030.030.030.030.060.230.210.200.180.440.30
Debt / EBITDA0.150.150.140.210.352.6830.38——2.241.68
Net Debt / Equity—-0.10-0.06-0.06-0.100.110.070.100.060.040.05
Net Debt / EBITDA-0.48-0.48-0.32-0.45-0.641.2210.29——0.230.30
Debt / FCF—-0.42-0.35-0.37-0.390.470.420.760.820.230.34
Interest Coverage206.36206.36142.27126.61-3.183.18-2.53-7.83-3.343.992.78

Net cash position: cash ($183M) exceeds total debt ($44M)

RMBS Liquidity & Efficiency

Short-term solvency ratios and asset-utilisation metrics

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
Current Ratio8.208.208.447.084.162.568.157.717.622.804.23
Quick Ratio7.847.847.896.674.002.537.987.607.522.764.12
Cash Ratio6.326.325.894.782.471.825.854.734.012.483.36
Asset Turnover—0.460.410.370.450.270.200.170.170.440.43
Inventory Turnover3.863.863.063.946.7411.606.337.708.7616.6713.23
Days Sales Outstanding—83.9196.97105.91145.32199.76247.04372.13359.1224.0422.88

RMBS Shareholder Yields

Earnings, FCF, buyback, and dividend yields — total returns to shareholders

Dividends

Full dividend history and growth charts are on the Dividend History page

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
Dividend Yield———————————
Payout Ratio———————————

Total Shareholder Return Metrics

MetricTTMFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018FY 2017FY 2016
Earnings Yield2.0%2.3%3.1%4.4%—0.5%————0.4%
FCF Yield3.0%3.3%3.5%2.3%5.4%5.8%7.9%8.0%9.1%6.9%5.4%
Buyback Yield0.1%0.1%2.0%1.3%2.6%3.0%2.5%0.0%6.0%3.2%0.0%
Total Shareholder Yield0.1%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

Key Metrics

Growth RegimeAccelerating
ProfitabilityStrong
Balance SheetFortress
Cash FlowRobust
Top Statement Risk

DDR5 cyclicality and competition

Verified Source

Metrics are mathematically derived from official filings.

SEC 10-K (2026Q2)

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.

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Includes 30+ ratios · 30 years · Updated daily

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RMBS — Frequently Asked Questions

Quick answers to the most common questions about buying RMBS stock.

What is Rambus Inc.'s P/E ratio?

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.

What is Rambus Inc.'s EV/EBITDA?

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.

What is Rambus Inc.'s ROE?

Rambus Inc.'s return on equity (ROE) is 18.5%. The historical average is 0.2%.

Is RMBS stock overvalued?

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.

What are Rambus Inc.'s profit margins?

Rambus Inc. has 76.0% gross margin and 36.8% operating margin. Operating margin above 20% indicates strong pricing power and cost efficiency.

How much debt does Rambus Inc. have?

Rambus Inc.'s Debt/EBITDA ratio is 0.1x, indicating low leverage. A ratio below 2x is generally considered financially healthy.