RMBS
Rambus
PE ratio, current and historical analysis
- Stocks
- Technology
- NASDAQ: RMBS
- PE Ratio
The price-to-earnings ratio for Rambus stock stands at 34.84 as of Nov 11, 2026. This results from the current EPS of $2.45 and stock price of $85.36. A decrease of 25% has been recorded in the P/E ratio compared to the average of 46.7 of the last 4 quarters.
RMBS PE ratio history
Over the last ten years, the average PE ratio of Rambus has been 74.23. The current 34.84 PE ratio is 53% below the historical average. In the past ten years, RMBS's PE ratio was at its highest in the Dec 2016 quarter at 229.5, with a price of $13.77 and an EPS of $0.06. The Mar 2024 quarter recorded the bottom point at 18.45, with a price of $61.81 and an EPS of $3.35.
Rambus PE ratio by year
Maximum annual increase: 3,542.86% in 2016
Maximum annual decrease: -86.93% in 2015
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 42.94 | 35.67% | $91.89 | $2.14 |
| 2024 | 31.65 | 43.28% | $52.86 | $1.67 |
| 2023 | 22.09 | N/A | $68.25 | $3.09 |
| 2022 | N/A | N/A | $35.82 | -$0.13 |
| 2021 | 172.88 | N/A | $29.39 | $0.17 |
| 2020 | N/A | N/A | $17.46 | -$0.36 |
| 2019 | N/A | N/A | $13.78 | -$0.77 |
| 2018 | N/A | N/A | $7.67 | -$1.46 |
| 2017 | N/A | N/A | $14.22 | -$0.21 |
| 2016 | 229.5 | 3,542.86% | $13.77 | $0.06 |
| 2015 | 6.3 | -86.93% | $11.59 | $1.84 |
| 2014 | 48.22 | N/A | $11.09 | $0.23 |
| 2013 | N/A | N/A | $9.47 | -$0.3 |
| 2012 | N/A | N/A | $4.87 | -$1.21 |
| 2011 | N/A | N/A | $7.55 | -$0.39 |
Rambus PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Sep 2026 | 43.58 | -27.44% | $106.76 | $2.45 |
| Jun 2026 | 60.06 | 48.7% | $132.74 | $2.21 |
| Mar 2026 | 40.39 | -5.94% | $86.03 | $2.13 |
| Dec 2025 | 42.94 | -12.22% | $91.89 | $2.14 |
| Sep 2025 | 48.92 | 62.74% | $104.2 | $2.13 |
| Jun 2025 | 30.06 | 11.46% | $64.02 | $2.13 |
| Mar 2025 | 26.97 | -14.79% | $51.78 | $1.92 |
| Dec 2024 | 31.65 | 22.2% | $52.86 | $1.67 |
| Sep 2024 | 25.9 | -6.13% | $42.22 | $1.63 |
| Jun 2024 | 27.59 | 49.54% | $58.76 | $2.13 |
| Mar 2024 | 18.45 | -16.48% | $61.81 | $3.35 |
| Dec 2023 | 22.09 | 5.69% | $68.25 | $3.09 |
| Sep 2023 | 20.9 | -43.65% | $55.79 | $2.67 |
| Jun 2023 | 37.09 | -63.82% | $64.17 | $1.73 |
| Mar 2023 | 102.52 | N/A | $51.26 | $0.5 |
RMBS Price vs fair value
RMBS average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
The current PE ratio of RMBS is lower than the 3, 5 and 10-year averages.
PE comparison
With a P/E of 34.84, RMBS stands above the Technology sector and its peers average but below the industry average. Compared to its Technology sector average of 30.38, Rambus's P/E is 15% higher.
RMBS PE vs peers
Frequently asked questions
What is Rambus's PE ratio?
RMBS's price to earnings ratio is 34.84 as of Nov 11, 2026.
What is the 3-year average PE ratio for Rambus (RMBS)?
As an average over the last 3 years, RMBS stock has a PE ratio of 34.88.
What is the 5-year average PE ratio for Rambus (RMBS)?
As an average over the last 5 years, RMBS stock has a PE ratio of 47.0.
What is the highest PE ratio for RMBS?
In the last ten years, the Dec 2016 quarter recorded the highest quarterly PE ratio at 229.5.
How does the current PE ratio for RMBS compare to its historical average?
RMBS's price to earnings ratio is currently 53% below its 10-year historical average.
How is RMBS's PE ratio calculated (Rambus PE ratio formula)?
The PE ratio is calculated by taking the latest stock price and dividing it by the EPS for the last 12 months. As of today (Nov 11, 2026), Rambus's stock price is $85.36. The earnings per share for the trailing twelve months (TTM) ending Sep 2026 is $2.45. Therefore, Rambus's P/E ratio for today is 34.84. PE RATIO(34.84) = STOCK PRICE($85.36) / TTM EPS($2.45)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.