Rambus Inc. (RMBS) P/E Ratio History
Fairly ValuedTrading at 66.9x, near 5Y avg of 74.5x · 70th percentile · In line with own history · Data 1997–2026
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P/E Ratio Analysis
As of June 21, 2026, Rambus Inc. (RMBS) trades at a price-to-earnings ratio of 66.9x, with a stock price of $141.17 and trailing twelve-month earnings per share of $2.10.
The current P/E is 10% below its 5-year average of 74.5x. Over the past five years, RMBS's P/E has ranged from a low of 7.1x to a high of 231.0x, placing the current valuation at the 70th percentile of its historical range.
Compared to the Technology sector median P/E of 29.0x, RMBS trades at a 131% premium to its sector peers. The sector includes 352 companies with P/E ratios ranging from 0.0x to 187.7x.
Relative to the broader market, RMBS commands a significant premium over the S&P 500 median P/E of 24.4x. 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 RMBS 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.
RMBS Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
RMBS P/E vs Peers
Chip Design Software and IP peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $16B | 20.8Lowest | 3.44 | +5% | |
| $5B | 161.7 | - | +118%Best | |
| $468B | 517.0 | - | +13% | |
| $238B | 45.1 | 21.70 | -44% | |
| $8B | 25.1 | 0.48Best | -2% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
RMBS Historical P/E Data (1997–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | - | $86.03 | $2.10 | 41.0x | -55% |
| FY2025 Q4 | Dec 31 2025 | $91.89 | $2.11 | 43.5x | -52% |
| FY2025 Q3 | - | $104.20 | $2.10 | 49.6x | -45% |
| FY2025 Q2 | Jun 30 2025 | $64.02 | $2.11 | 30.3x | -67% |
| FY2025 Q1 | Mar 31 2025 | $51.78 | $1.91 | 27.1x | -70% |
| FY2024 Q4 | - | $52.86 | $1.65 | 32.0x | -65% |
| FY2024 Q3 | Sep 30 2024 | $42.22 | $1.61 | 26.2x | -71% |
| FY2024 Q2 | Jun 30 2024 | $58.76 | $2.09 | 28.1x | -69% |
| FY2024 Q1 | Mar 31 2024 | $61.81 | $3.27 | 18.9x | -79% |
| FY2023 Q4 | Dec 31 2023 | $68.25 | $3.00 | 22.8x | -75% |
| FY2023 Q3 | Sep 30 2023 | $55.79 | $2.61 | 21.4x | -76% |
| FY2023 Q2 | Jun 30 2023 | $64.17 | $1.69 | 38.0x | -58% |
| FY2023 Q1 | Mar 31 2023 | $51.26 | $0.49 | 105.1x | +16% |
| FY2021 Q4 | Dec 31 2021 | $29.39 | $0.16 | 183.9x | +103% |
| FY2017 Q3 | Sep 30 2017 | $13.35 | $0.09 | 149.0x | +64% |
| FY2017 Q2 | Jun 30 2017 | $11.43 | $0.06 | 191.8x | +111% |
| FY2017 Q1 | Mar 31 2017 | $13.14 | $0.07 | 188.8x | +108% |
| FY2016 Q4 | Dec 31 2016 | $13.77 | $0.06 | 231.0x | +155% |
| FY2016 Q3 | Sep 30 2016 | $12.50 | $0.23 | 54.3x | -40% |
| FY2016 Q2 | - | $12.08 | $1.71 | 7.1x | -92% |
| FY2016 Q1 | - | $13.75 | $1.74 | 7.9x | -91% |
| FY2015 Q4 | - | $11.59 | $1.80 | 6.4x | -93% |
| FY2015 Q3 | Sep 30 2015 | $11.80 | $1.72 | 6.8x | -92% |
| FY2015 Q2 | - | $14.49 | $0.25 | 57.3x | -37% |
| FY2015 Q1 | - | $12.57 | $0.23 | 54.0x | -40% |
| FY2014 Q4 | Dec 31 2014 | $11.09 | $0.22 | 49.8x | -45% |
| FY2014 Q3 | - | $12.48 | $0.07 | 171.0x | +88% |
| FY2011 Q3 | Sep 30 2011 | $14.00 | $0.18 | 78.4x | -14% |
| FY2010 Q4 | Dec 31 2010 | $20.48 | $1.30 | 15.8x | -83% |
| FY2010 Q3 | - | $20.84 | $0.77 | 27.1x | -70% |
| FY2010 Q2 | Jun 30 2010 | $17.52 | $0.69 | 25.4x | -72% |
| FY2010 Q1 | Mar 31 2010 | $21.85 | $0.57 | 38.3x | -58% |
| FY2006 Q2 | Jun 30 2006 | $22.81 | $0.27 | 83.6x | -8% |
| FY2006 Q1 | Mar 31 2006 | $39.34 | $0.24 | 162.0x | +79% |
| FY2005 Q4 | Dec 31 2005 | $16.19 | $0.27 | 59.3x | -35% |
| FY2005 Q3 | Sep 30 2005 | $12.10 | $0.25 | 49.3x | -46% |
| FY2005 Q2 | - | $13.38 | $0.24 | 56.9x | -37% |
| FY2005 Q1 | - | $15.07 | $0.29 | 52.8x | -42% |
| FY2004 Q4 | Dec 31 2004 | $23.00 | $0.32 | 73.0x | -20% |
| FY2004 Q3 | - | $15.69 | $0.34 | 46.4x | -49% |
| FY2004 Q2 | Jun 30 2004 | $17.73 | $0.29 | 61.5x | -32% |
| FY2004 Q1 | Mar 31 2004 | $28.02 | $0.25 | 112.8x | +24% |
| FY2003 Q4 | Dec 31 2003 | $30.70 | $0.23 | 134.4x | +48% |
| FY2003 Q3 | - | $16.84 | $0.20 | 84.2x | -7% |
| FY2003 Q2 | Jun 30 2003 | $16.52 | $0.21 | 79.0x | -13% |
| FY2003 Q1 | Mar 31 2003 | $13.21 | $0.23 | 57.7x | -36% |
| FY2002 Q4 | - | $6.71 | $0.25 | 26.9x | -70% |
| FY2002 Q3 | Sep 30 2002 | $4.34 | $0.25 | 17.4x | -81% |
| FY2002 Q2 | Jun 30 2002 | $4.09 | $0.25 | 16.1x | -82% |
| FY2002 Q1 | Mar 31 2002 | $7.79 | $0.23 | 33.2x | -63% |
| FY2001 Q4 | Dec 31 2001 | $7.99 | $0.23 | 34.1x | -62% |
| FY2001 Q3 | Sep 30 2001 | $7.36 | $0.29 | 25.0x | -72% |
| FY2001 Q2 | Jun 30 2001 | $12.31 | $0.77 | 16.0x | -82% |
| FY2001 Q1 | Mar 31 2001 | $20.60 | $0.77 | 26.8x | -71% |
| FY1999 Q4 | Dec 31 1999 | $16.86 | $0.09 | 182.5x | +101% |
| FY1999 Q3 | - | $16.56 | $0.09 | 189.5x | +109% |
| FY1999 Q2 | Jun 30 1999 | $23.05 | $0.08 | 289.9x | +220% |
| FY1999 Q1 | Mar 31 1999 | $16.09 | $0.08 | 202.4x | +123% |
| FY1998 Q4 | - | $24.06 | $0.08 | 302.7x | +234% |
| FY1998 Q3 | Sep 30 1998 | $16.00 | $0.08 | 201.3x | +122% |
| FY1998 Q2 | - | $15.28 | $0.07 | 211.7x | +133% |
| FY1998 Q1 | - | $10.94 | $0.06 | 175.8x | +94% |
| FY1997 Q4 | Dec 31 1997 | $11.44 | $0.05 | 250.8x | +177% |
| FY1997 Q3 | - | $13.91 | $0.03 | 462.0x | +409% |
Average P/E for displayed period: 90.7x
Full Stock Analysis
Deep dive into RMBS consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
29+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
RMBS — Frequently Asked Questions
Quick answers to the most common questions about buying RMBS stock.
What is RMBS's P/E ratio?
Rambus Inc. (RMBS) trailing twelve-month P/E ratio is 66.9x, based on TTM diluted EPS of $2.10. The 5-year average P/E is 74.5x and the historical range spans 7.1x to 231.0x.
Is RMBS stock overvalued or undervalued?
RMBS trades at 66.9x P/E, near its 5-year average of 74.5x. The 70th percentile ranking within the 7.1x–231.0x historical range places valuation within normal bounds.
Is RMBS stock expensive?
RMBS is fairly valued relative to its own history. The current P/E of 66.9x is near the 5-year average of 74.5x (70th percentile of historical range).
What is RMBS's historical P/E range?
Over the past 5 years, RMBS's P/E ratio has ranged from 7.1x to 231.0x, with a median of 41.0x and an average of 74.5x. The current P/E of 66.9x places the stock at the 70th percentile of this range. Full historical data spans 1997–2026.
How does RMBS's P/E compare to the S&P 500?
RMBS trades at 66.9x P/E versus the S&P 500 median of 24.4x. The 174% premium to the market typically reflects higher expected earnings growth or quality.
How does RMBS's valuation compare to Technology peers?
Rambus Inc. P/E of 66.9x compares to the Technology sector median of 29.0x. The premium reflects expected growth above peers or stronger fundamentals. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is RMBS's PEG ratio?
RMBS PEG ratio is N/A, based on a P/E of 66.9x and EPS growth of 27.9%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is RMBS's earnings yield?
RMBS earnings yield is 1.49%, the inverse of its 66.9x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.