Rambus Inc (RMBS) Stock Analysis
P/E 49.85×· 5Y range 15.97–23,677.69×· 71th percentile of history
Sector: Technology · Industry: Semiconductors & Related Devices
AnalystsStrong Buy17 analystsStrengths
- ✓Altman Z 50.2 — safe-zone balance sheet
- ✓ROE 16.5% — efficient capital deployment
- ✓Revenue CAGR 21.2% — durable top-line growth
- ✓Interest coverage 24.3× — debt well covered
Risks
- ⚠SBC 7.5% of revenue — real dilution cost
- ⚠5 loss-making years in recent history
What's happening with RMBS
Price History
5-Year Weekly Candlestick Chart
Profile
Strong growth, financial health and profitability; valuation lags behind.
How is each axis scored?
- Valuation25/100 · Weak
- P/E vs own history (71th pct)5/25
- FCF yield (3.0%)5/25
- P/S (15.7x)5/25
- EV/EBIT (n/a)10/25
- Growth100/100 · Strong
- Revenue CAGR (21.2%)25/25
- Net income CAGR (88.3%)25/25
- EPS CAGR 5Y (90.7%)25/25
- Fwd implied growth (69.7%)25/25
- Profitability95/100 · Strong
- ROIC (27.6%)25/25
- ROE (16.5%)20/25
- Net margin (31.9%)25/25
- Operating margin (35.9%)25/25
- Financial Health100/100 · Strong
- Altman Z (50.25)25/25
- Current ratio (9.82)25/25
- Interest coverage (24.3x)25/25
- Net cash / debt (Net cash)25/25
- Quality65/100 · Moderate
- Piotroski F (5/9)15/25
- Beneish M (-2.64)25/25
- FCF conversion (146%)25/25
- Margin stability (σ 33.8%)0/25
About Rambus Inc
Rambus Inc is a semiconductor company providing chips and silicon IP for data-intensive computing systems, focusing on data center and artificial intelligence (AI) infrastructure. Show more
The company is at the forefront of enabling the next era of AI-driven computing, addressing challenges of signal and power integrity at increasingly extreme data rates across the data center, edge, and client markets. It offers high-performance memory subsystems, with a balanced and diverse portfolio of products, IP, and patents that maximize performance and security in computationally intensive systems. The company operates in South Korea, Singapore, the United States, and other countries, with the majority of its revenue coming from South Korea.
Headquarters: SAN JOSE, CA · Employees: 791 · Website ↗
Insider Transactions
Recent SEC Form 4 filings
- SellOpen market sale · filed 2026-09-24-5000 sh2026-09-22
- SellOpen market sale · filed 2026-08-10-5000 sh2026-08-07
- SellOpen market sale · filed 2026-06-03-5000 sh2026-06-03
- SellOpen market sale · filed 2026-06-03-5000 sh2026-06-02
- SellOpen market sale · filed 2026-06-03-5000 sh2026-06-02
+3 more recent filings
Key Metrics
Financial snapshot — pillar inputs plus per-share and market context
Valuation
25EP/E (TTM)49.8xD
Grade D: ExpensivePrice / TTM EPS (own statements) — vs own 5Y history: 16.0x–23677.7x · 71st pct
P/FCF37.6xC
Grade C: ExpensivePrice / Free Cash Flow per share (Finnhub). Inverse of FCF yield — negative when FCF is negative
FCF Yield3.0%C
Grade C: LowTTM FCF / Market Cap — vs own 5Y history: 1.8%–8.9% · 35th pct
P/S (TTM)15.71xD
Grade D: ExpensivePrice / TTM Revenue (own statements) — vs own 5Y history: 5.8x–26.0x · 85th pct
EV/EBITDA38.8xD
Grade D: ExpensiveEnterprise value / EBITDA (Finnhub) — capital-structure neutral
EV/Sales14.8xD
Grade D: Very expensiveEnterprise Value / TTM Revenue (Finnhub) — capital-structure neutral sales multiple
Forward P/E29.4xC
Grade C: ExpensivePrice / next-year EPS estimate — shows whether the TTM multiple is rich or just front-loading growth
P/B Ratio8.13xD
Grade D: Very expensivePrice to Book Value. Neg. equity = heavy buybacks
PEG Ratio3.49D
Grade D: ExpensiveFinnhub PEG — their P/E basis ÷ expected EPS growth. Suppressed when their P/E diverges >2× from our TTM P/E (different basis)
Dividend Yield—
TTM dividend yield (Finnhub) — annual dividends / price. None = no dividend; very high yield can signal distress
Payout Ratio—
Dividends / Net Income (Finnhub) — share of earnings paid out; >90% or negative = unsustainable
Profitability
95A+ROIC27.6%A
Grade A: MoatNOPAT (EBIT less ~21% tax) / invested capital (equity + debt − cash). Flagship quality metric — durable >15% signals a moat
ROE16.5%C
Grade C: AverageReturn on Equity. Neg. equity = heavy buybacks
ROA15.8%A
Grade A: StrongReturn on Assets (Finnhub) — Net Income / Total Assets; how efficiently assets produce profit
Net Margin31.9%A
Grade A: HighNet Income / Revenue
Operating Margin35.9%A
Grade A: HighTTM EBIT / TTM Revenue
Gross Margin79.5%A
Grade A: PremiumGross Profit / Revenue
FCF Margin46.5%A
Grade A: HighFCF / Revenue
True FCF Margin38.9%A
Grade A: HighTTM (OCF − CapEx − SBC) / TTM Revenue — SBC treated as a real cost
Financial Health
100A+Altman Z-Score50.25A
Grade A: SafeBankruptcy risk. >3 Safe, <1.8 Distress
Current Ratio9.82xA
Grade A: HighCurrent Assets/Liabilities
Quick Ratio7.67xA
Grade A: High(Current Assets − Inventory) / Current Liabilities (Finnhub) — stricter liquidity test, excludes inventory
Interest Coverage24.3xA
Grade A: StrongEBIT/Interest. >10 Strong
Debt RepaymentNet CashA
Grade A: FastYears to repay net debt via FCF
Net Debt/EBIT—
Leverage. <2x Low, >4x High
Debt/Equity0.00xA
Grade A: LowDebt / Equity: <1 Conservative, >2 Risky. Not meaningful with non-positive equity; shown as unavailable rather than low debt.
Cash / Debt—
Cash covers how much of total debt. >1 = could repay all debt from cash
Growth
100A+Revenue CAGR21.2%A
Grade A: HighCompound annual revenue growth (up to 5Y depending on data availability)
Net Income CAGR88.3%A
Grade A: HighCompound annual net income growth (up to 5Y depending on data availability)
EPS CAGR (5Y)90.7%A
Grade A: HighCompound annual EPS growth over up to 5Y of per-share earnings (own statements). Null when either endpoint EPS ≤ 0
Implied EPS Growth69.7%A
Grade A: HighImplied 1Y EPS growth from forward P/E vs our TTM EPS. Sparse — only where forward estimates exist
Dilution (5Y)-2.2%A
Grade A: BuybacksShare count change over 5Y
SBC / Net Income23.6%D
Grade D: HighStock-based comp/Net income. >30% = dilution risk
SBC / Revenue7.5%C
Grade C: MedTTM stock-based comp / TTM Revenue
Quality
5/10 Loss Years65BPiotroski F-Score5/9C
Grade C: AverageFinancial strength 0–9. >7 Strong
Beneish M-Score-2.64A
Grade A: SafeEarnings manipulation risk. < -2.22 Safe
FCF Conversion145.7%A
Grade A: StrongFCF / Net Income
Margin Stability33.8%D
Grade D: VolatileEBIT margin std deviation. Lower = stable
Capex / Revenue4.2%A
Grade A: Asset-lightTTM CapEx / TTM Revenue — high % = capital-hungry business
Asset Turnover0.46xD
Grade D: LowRevenue / Total Assets (Finnhub) — how efficiently the asset base generates sales
More metrics — Per Share, Balance Sheet, MarketHide additional metrics
Per Share
EPS (TTM)$2.10
Own TTM net income / shares — same earnings basis as P/E
Cash / Share$7.07
Cash & short-term investments per share (Finnhub)
Book Value / Share$12.66
Shareholders' equity per share (Finnhub). Negative = accumulated losses / heavy buybacks
Balance Sheet
Total Debt—
Total debt obligations (short + long term)
Cash & Equiv.$651.82M
Cash and short-term investments
Net Debt—
Total Debt minus Cash. Negative = Net Cash position
Total Equity$1.39B
Shareholders' equity (book value)
Asset / Liability10.96xA
Grade A: SolidTotal Assets / Total Liabilities
Market
Market Cap$11.33B
Current Market Capitalization
Beta1.92D
Grade D: High volatilityPrice sensitivity vs the market (Finnhub) — 1.0 moves with market, >1.2 amplifies swings
Takeaway
Company is effectively debt-free after netting cash. · Current P/E of 49.8x sits at the 71st percentile of its historical range.
How grades work: each metric is graded A–D against fixed thresholds (tap a row for the meaning). Card grades map the pillar score to A+–E — a card grade is that pillar's own score, not an average of the rows shown.
Financials as of Mar 2026 · Ratio snapshot Sep 26, 2026
Key Insights: Rambus Inc (RMBS)
Piotroski F-Score of 5/9 indicates mixed fundamentals for Rambus Inc. Altman Z-Score of 50.25 sits comfortably in the safe zone (≥ 2.99), indicating low bankruptcy risk. Beneish M-Score of -2.64 suggests a low likelihood of earnings manipulation. Revenue has compounded at roughly 21% annually, with net income growing about 88% per year — a strong growth profile.
- Rambus Inc converts about 46% of revenue into free cash flow — strong cash generation.
- Company is effectively debt-free after netting cash.
- Rambus Inc posted a net loss in 5 of 10 available completed fiscal years (2016–2025).
- At a valuation score of 25/100, RMBS trades at a premium to its historical multiples (P/E 49.8).
See how RMBS ranks on the Capex Tracker — top 50 capital spenders compared.
Recent Market Moves
See all RMBS moves →| Date | Session | Price | Move | Z-Score |
|---|---|---|---|---|
| Sep 22 | After-hours | 105.89 | +9.21% | 2.11 |
| Sep 21 | Regular | 98.06 | +11.94% | 7.96 |
| Sep 21 | After-hours | 96.97 | +10.70% | 7.13 |
Frequently Asked Questions about RMBS
Is RMBS stock a buy right now?
PreMarketPrice's quantitative model rates Rambus Inc's financial health at 100/100. This is a data-driven snapshot of fundamentals, not investment advice.
Is RMBS stock overvalued?
Rambus Inc trades at a trailing P/E of 49.8 and our valuation score rates it 25/100 (higher = cheaper vs. its own history). See the Valuation History and Key Metrics sections for forward P/E, EV/EBITDA and PEG context.
When does Rambus Inc report earnings?
No confirmed earnings date is currently scheduled for RMBS. The Earnings section lists recent reports and updates as dates are announced.
What sector does Rambus Inc operate in?
Rambus Inc operates in the Technology sector, within the Semiconductors & Related Devices industry. The Related Stocks section lists sector peers for comparison.
What does Rambus Inc do?
Rambus Inc is a semiconductor company providing chips and silicon IP for data-intensive computing systems, focusing on data center and artificial intelligence (AI) infrastructure.
About Rambus Inc (RMBS) Stock
Rambus Inc (RMBS) is a US-listed stock operating in the Technology sector, specifically the Semiconductors & Related Devices industry. Real-time pricing data for Rambus Inc is available on this page with a market capitalization of $11.3 billion. The financial health score for RMBS is 100/100, which indicates excellent financial strength based on profitability, leverage, liquidity, and growth metrics. This page provides real-time pre-market pricing, earnings calendar, financial health analysis, and valuation metrics for RMBS stock.
RMBS Stock Analysis & Key Metrics
On PreMarketPrice, you can track Rambus Inc (RMBS) across multiple dimensions:
- Pre-market price & movement: Real-time RMBS stock price with percentage change, updated continuously during pre-market and regular trading hours.
- Valuation & P/E history: Historical P/E, P/S, and P/B ratios for RMBS with trend analysis and normalized valuation multiples.
- Financial statements: Revenue, net income, assets, liabilities, and equity for Rambus Inc across multiple reporting periods.
- Financial health score: A composite score of 100/100 based on Altman Z-Score, Piotroski F-Score, profitability, and leverage metrics for RMBS.
- Sector peers: Compare RMBS against 10 other technology stocks on key financial metrics.
Is RMBS a Good Stock to Buy?
This page provides data-driven analysis to help you evaluate Rambus Inc (RMBS) as an investment. The financial health score of 100/100 suggests excellent financial fundamentals. Valuation metrics show whether the stock is trading above or below its historical average.However, this is not financial advice — always do your own research before investing.
Data on this page is sourced from real-time market feeds, Polygon.io, and Finnhub.Rambus Inc (RMBS) trades on NYSE/NASDAQ. Pre-market trading occurs 4:00 AM – 9:30 AM ET. Regular market hours are 9:30 AM – 4:00 PM ET.