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Rambus Inc

Rambus Inc. manufactures and sells semiconductor products in the United States, South Korea, Singapore, and internationally. Its memory interface chips include DDR5 products such as registering clock drivers, multiplexed registering clock drivers, multiplexed data buffers, power management ICs, serial presence detect hubs, temperature sensors, and client clock drivers, as well as DDR4 memory interface chips. The company also provides silicon IP, including interface and security IP for AI, data center, government, and automotive applications, and a patent portfolio covering memory architecture, high-speed serial links, and security products. Rambus sells to memory module manufacturers, OEMs, hyperscalers, and chip makers through its direct sales force and distributors. It was incorporated in 1990 and is headquartered in San Jose, California.

Price · split & dividend adjusted

Why is Rambus Inc (RMBS) moving?

Latest
▲2▼1

Rambus beats Q2, but stock plunges on valuation and supply worries

  • Record Q2 results beat estimates Rambus reported record quarterly revenue of $207.4 million, up 20% year over year, and earnings of $0.77 per share, beating the $0.71 consensus. Product revenue hit a record $99.2 million, up 22% from a year ago. This shows the business is growing strongly, which supports a higher stock price.

    This is the core new financial result that answers what's driving the stock fundamentally.

  • Q3 guidance points to continued double-digit growth Rambus guided third-quarter revenue to $210–$216 million, with product revenue of $110–$116 million, implying another quarter of double-digit growth. Management cited DDR5 RCD leadership and new products. A strong outlook usually lifts the stock because it signals future demand.

    Guidance is a key forward-looking driver that investors weigh heavily.

  • Stock plunges 33% despite earnings beat Shares fell 33% over the past month to $82.81, even after beating estimates. The sell-off suggests investors are worried about high valuation, slowing royalty revenue, or supply-chain tightness. This drop directly pulls the stock price down and reflects negative market sentiment.

    This is the most recent and dramatic price move, explaining why the stock is moving right now.

  • Analyst targets remain high but risks noted 24/7 Wall St. set a year-end target of $116.28 (40% upside) and maintained a buy rating, while another analyst had a $108.43 target. However, risks include a royalty revenue slip, margin pressure, and insider selling. Analyst optimism supports the stock, but the risks act as a counterweight.

    Analyst views and identified risks provide a balanced picture of what could push the stock up or down.

Q3 2026
▲2▼1

Rambus beats Q2, but stock plunges on valuation and supply worries

  • Record Q2 results beat estimates Rambus reported record quarterly revenue of $207.4 million, up 20% year over year, and earnings of $0.77 per share, beating the $0.71 consensus. Product revenue hit a record $99.2 million, up 22% from a year ago. This shows the business is growing strongly, which supports a higher stock price.

    This is the core new financial result that answers what's driving the stock fundamentally.

  • Q3 guidance points to continued double-digit growth Rambus guided third-quarter revenue to $210–$216 million, with product revenue of $110–$116 million, implying another quarter of double-digit growth. Management cited DDR5 RCD leadership and new products. A strong outlook usually lifts the stock because it signals future demand.

    Guidance is a key forward-looking driver that investors weigh heavily.

  • Stock plunges 33% despite earnings beat Shares fell 33% over the past month to $82.81, even after beating estimates. The sell-off suggests investors are worried about high valuation, slowing royalty revenue, or supply-chain tightness. This drop directly pulls the stock price down and reflects negative market sentiment.

    This is the most recent and dramatic price move, explaining why the stock is moving right now.

  • Analyst targets remain high but risks noted 24/7 Wall St. set a year-end target of $116.28 (40% upside) and maintained a buy rating, while another analyst had a $108.43 target. However, risks include a royalty revenue slip, margin pressure, and insider selling. Analyst optimism supports the stock, but the risks act as a counterweight.

    Analyst views and identified risks provide a balanced picture of what could push the stock up or down.

News & notes moving RMBS
United States
RMBS

Goldman Sachs flags 20 Russell 1000 stocks with widest revenue forecast dispersion

Goldman Sachs is telling investors to hunt for alpha in stocks where the firm holds a differentiated view on long-term revenue growth, as valuation dispersion stays narrow and growth stocks trade at a sizable premium. Chief U.S. equity strategist Ben Snider screened the Russell 1000 for companies with market caps above $5B and average analyst estimates calling for annual sales growth of more than 10% three years from now. From that group, Goldman identified the 20 stocks with the widest dispersion in analysts' three-year revenue forecasts, where differentiated views offer greater potential for alpha, and the 20 stocks where estimates are most tightly clustered. Space Exploration Technologies Corp. tops the widest-dispersion list with 72% FY3 sales growth and a dispersion reading of 0.31, followed by IREN Limited at 75% growth and 0.26, Rambus Inc. at 25% and 0.24, IonQ, Inc. at 39% and 0.24, and Rocket Lab Corporation at 33% and 0.23. On the narrowest-dispersion side, Jersey Mike's Subs, Inc. leads with 12% FY3 sales growth and a dispersion of 0.01, alongside Samsara, Inc. at 20% and 0.01, SailPoint, Inc. at 19% and 0.01, and Edwards Lifesciences Corporation at 11% and 0.01.
JMKE · Capital · Neutral Leads the narrowest-dispersion list with 12% FY3 sales growth, cited only as a screen result.
RMBS · Capital · Neutral Named among the 20 stocks with widest analyst revenue-forecast dispersion, offering alpha potential but no company-specific development.
SAIL · Capital · Neutral Named among the stocks with narrowest analyst revenue-forecast dispersion, cited only as a screen result.
SPCX · Capital · Neutral Tops Goldman's widest-dispersion list with 72% FY3 sales growth, but the mention is a screen result, not a company event.
IONQ · · Neutral Named on Goldman's widest revenue-forecast dispersion list (39% growth, 0.24); no company-specific development.
IREN · · Neutral Named on Goldman's widest revenue-forecast dispersion list (75% growth, 0.26); no company-specific development.
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TaiwanUnited States
Semiconductors▲

M31 Expands Rambus Collaboration for One-Stop MIPI Subsystem Solution

M31 Technology has expanded its technology collaboration with Rambus Inc. to cover MIPI CSI and MIPI DSI Controller technologies, combining them with M31's silicon-proven MIPI PHY portfolio to offer a comprehensive MIPI subsystem solution. The Hsinchu-based silicon IP provider said the integration of high-speed MIPI PHYs with MIPI CSI and DSI controllers lets customers reduce verification and development risks tied to multi-vendor integration while accelerating time-to-market. M31 CEO Scott Chang said customers previously had to procure controllers separately and then rely on M31 for integration, but can now entrust the complete MIPI interface design to M31. As M31 moves from PHY-only offerings to complete subsystem solutions that include controllers, the average total contract value of related engagements is expected to increase compared with the previous PHY-only licensing model. The company cited rising demand across smartphones, automotive ADAS cameras, multi-display cockpit systems, and AI edge devices, and said industry analysts project the global interface IP market will reach approximately US$5.4 billion by 2029.
About megatrends
Semiconductors › EDA & Semiconductor IP ▲Competition
6643.TWO · Demand · Positive M31 moves from PHY-only to complete MIPI subsystem solutions with Rambus controllers, expected to raise average total contract value amid rising smartphone/ADAS/AI-edge demand.
RMBS · Demand · Positive M31 expands collaboration with Rambus to integrate its MIPI CSI/DSI controllers into a one-stop MIPI subsystem solution, broadening Rambus controller adoption.
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PR Newswire·17dRead more →
Artificial Intelligence▲

Semiconductor IP Market to Reach $18.64 Billion by 2032

The global semiconductor IP market is projected to reach $18.64 billion by 2032, growing at a compound annual growth rate of 10.2% from 2026, according to a new report from ResearchAndMarkets.com. The market was valued at an estimated $9.30 billion in 2025. Security IP is expected to be the fastest-growing design IP segment, while hard IP is projected to outpace soft IP, and the RISC-V architecture is positioned for the fastest growth. Asia Pacific is forecast to remain the fastest-growing regional market, driven by investments in semiconductor self-sufficiency and expanding chip design ecosystems. Key players profiled include Arm, Synopsys, Cadence, Rambus, Alphawave Semi, and SiFive.
About megatrends
Artificial Intelligence › EDA & Semiconductor IP ▲Demand
Artificial Intelligence › Custom Silicon / ASIC ▲Demand
Semiconductors › EDA & Semiconductor IP ▲Demand
Artificial Intelligence › AI Compute & Accelerator Silicon ▲Demand
ARM · Demand · Positive Market growth forecast boosts demand for Arm's IP products.
CDNS · Demand · Positive Market growth forecast boosts demand for Cadence's IP products.
RMBS · Demand · Positive Market growth forecast boosts demand for Rambus's IP products.
SNPS · Demand · Positive Market growth forecast boosts demand for Synopsys's IP products.
SiFive · Demand · Positive Market growth forecast boosts demand for SiFive's IP products.
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ResearchAndMarkets.com·61dRead more →
Artificial Intelligence▼

Rambus Shares Fall 20% Despite Record Revenue as Margin Compression Worries Investors

Rambus shares fell as much as 20% after the company reported record quarterly revenue of $207.4 million for the second quarter of 2026, as investors focused on declining margins and a premium valuation. Total revenue rose 20% year-over-year and 15% sequentially, beating analyst forecasts of $198.3 million, while product revenue grew 22% to $99.2 million driven by DDR5 9600 chipsets and increased server-memory content. However, product gross margin slipped to the low-60% area, near the lower end of management's 60% to 65% target, and trailing-twelve-month net margin fell to 31.7% from 35.5% a year earlier. Even after the sell-off, Rambus trades at a forward price-to-earnings multiple of 24.27 times, a premium to Broadcom's 19.92 times and NVIDIA's 20 times, leaving little room for further margin erosion. The company also announced a significant HBM IP design win with a Tier-1 hyperscaler and issued third-quarter revenue guidance of $210 million to $216 million.
About megatrends
Artificial Intelligence › EDA & Semiconductor IP ▼Pricing
Semiconductors › Logic, Compute & Connectivity Processors Competition
Artificial Intelligence › HBM & AI Memory Technology
RMBS · Capital · Negative Record revenue but margin compression and premium valuation drive 20% sell-off
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Insider Monkey·61dRead more →
Semiconductors▼

Rambus Shares Plunge 33% Despite Earnings Beat, 24/7 Wall St. Sets $116 Target

Rambus shares have fallen 33% over the past month to $82.81, even after the company reported second-quarter results that exceeded every estimate. 24/7 Wall St. has issued a year-end 2026 price target of $116.28, implying 40.42% upside with a buy recommendation and 90% confidence. The sell-off followed a quarter in which revenue grew 20.43% year over year to $207.38 million and non-GAAP earnings per share of $0.77 beat consensus, yet the stock dropped nearly 9% the next day. Rambus now trades at a forward price-to-earnings multiple of 24, roughly half that of Marvell Technology at 47 and well below Credo Technology at 35, despite delivering 20% revenue growth. The company guided for third-quarter revenue between $210 million and $216 million, with product revenue expected to rise sequentially to a range of $110 million to $116 million.
About megatrends
Semiconductors › Logic, Compute & Connectivity Processors Competition
RMBS · Capital · Negative Stock fell 33% despite earnings beat and analyst target, driven by market disappointment and valuation concerns.
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24/7 Wall St.·66dRead more →
Semiconductors▲

Rambus guides Q3 revenue to $210M-$216M after record Q2

Rambus guided third-quarter revenue to between $210 million and $216 million and non-GAAP earnings per share to between $0.75 and $0.82, following a record second quarter in which revenue reached $207.4 million and non-GAAP EPS hit $0.77. CEO Luc Seraphin said product revenue rose 22% year-over-year to a record $99 million and expects another quarter of double-digit growth in Q3, driven by DDR5 RCD leadership and new products. The company also announced a reporting change to focus solely on ASC 606 revenue, as the difference between royalties revenue and licensing billing is now minimal. Cash, cash equivalents and marketable securities totaled $825 million at quarter-end, with free cash flow of $49 million. Management flagged ongoing supply-chain tightness and lengthening lead times, while noting that a material contribution from MRDIMM is not expected until 2027.
About megatrends
Semiconductors › Logic, Compute & Connectivity Processors Competition
RMBS · Demand · Positive Record Q2 product revenue up 22% YoY and guidance for another quarter of double-digit growth driven by DDR5 RCD leadership and new products.
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Seeking Alpha·68dRead more →
RMBS▲2

Rambus beats Q2 estimates with earnings of $0.77 per share

Rambus reported quarterly earnings of $0.77 per share, surpassing the Zacks Consensus Estimate of $0.71 per share and marking an 8.45% earnings surprise. Revenue came in at $207.39 million, beating the consensus estimate by 4.27% and up from $170 million a year ago. The company has now topped consensus EPS estimates three times in the last four quarters. Shares have gained about 4.5% year-to-date, underperforming the S&P 500's 8.3% advance.
RMBS · Capital · Positive Rambus beat Q2 earnings and revenue estimates, with EPS of $0.77 vs $0.71 consensus and revenue of $207.39M vs $198.9M consensus.
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Zacks Investment Research·69dRead more →
RMBS▲

Cadence Design, Rambus, Welltower lead after-hours stock moves on earnings beats and guidance raises

Several companies made notable after-hours moves following their latest earnings reports. Cadence Design Systems rose more than 4% after posting second-quarter adjusted earnings of $2.11 per share, beating the LSEG consensus of $2.05, while revenue of $1.58 billion met expectations. Rambus edged higher after reporting adjusted earnings of 77 cents per share on revenue of $207 million, exceeding analyst estimates of 72 cents and $198 million. Welltower jumped 4% after the senior housing real estate investment trust raised its full-year normalized funds from operations guidance to a range of $6.36 to $6.44 per share, above the FactSet consensus of $6.30. Universal Health Services dropped more than 4% after lowering its full-year adjusted earnings guidance to between $22.28 and $23.65 per share, down from a prior range of $22.64 to $24.52. Happen, the bank formerly known as LendingClub, advanced 4% after issuing full-year earnings guidance of $1.80 to $1.90 per share, surpassing the FactSet consensus of $1.74, and projecting loan originations of $12.2 billion to $12.6 billion. F5 gained nearly 2% after third-quarter adjusted earnings of $4.73 per share on revenue of $865 million topped the LSEG consensus of $4 per share and $388 million. Cincinnati Financial lost almost 4% after operating earnings of $1.43 per share missed the FactSet consensus of $1.84, and net premiums of $2.64 billion came in slightly below the expected $2.66 billion. Nucor dipped 1% despite beating second-quarter earnings and revenue expectations, with the stock already up more than 50% year to date. Principal Financial Group fell 3% even though operating earnings of $2.42 per share exceeded the FactSet consensus of $2.34, as the stock had already risen more than 25% this year.
CDNS · Capital · Positive Beat Q2 adjusted EPS consensus and met revenue expectations.
CINF · Capital · Negative Missed Q2 operating earnings and net premiums consensus.
FFIV · Capital · Positive Beat Q3 adjusted EPS and revenue consensus.
LC · Capital · Positive Issued full-year earnings guidance above consensus and projected strong loan originations.
NUE · Capital · Neutral Beat Q2 earnings and revenue expectations but stock dipped, possibly due to prior gains.
PFG · Capital · Neutral Beat Q2 operating earnings consensus but stock fell, possibly due to prior gains.
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CNBC·69dRead more →
RMBS▲

Rambus Reports Record Quarterly Revenue of $207.4 Million, Up 20% Year Over Year

Rambus reported record quarterly revenue of $207.4 million for the second quarter of 2026, a 20% increase year over year and above its guidance range. Product revenue reached a record $99.2 million, up 13% sequentially and 22% from a year ago, while royalties contributed $84.2 million and contract and other revenue added $24.0 million. GAAP diluted earnings per share came in at $0.61, and non-GAAP diluted earnings per share was $0.77, also exceeding the company's guidance. Cash from operations was $61.2 million, and total cash, equivalents, and marketable securities stood at $824.9 million at quarter-end. For the third quarter, Rambus expects total revenue between $210 million and $216 million, with product revenue of $110 million to $116 million, and non-GAAP diluted earnings per share of $0.75 to $0.82.
RMBS · Capital · Positive Record quarterly revenue and earnings beat guidance, with strong cash flow and raised outlook.
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Business Wire·69dRead more →
Artificial Intelligence▲

Rambus Holds Buy Rating With $108.43 Target Despite 28% Drop From June Peak

Rambus holds a buy rating and a 12-month price target of $108.43 from 24/7 Wall St., implying 5.38% upside from the current $102.89, even after shares fell 28% from their June peak. The memory interface specialist reported first-quarter fiscal 2026 revenue of $180.19 million, up 8.12% year over year, with product revenue climbing 15%, while non-GAAP earnings per share came in at $0.63. CEO Luc Seraphin highlighted that growth in AI inference and agentic workloads is driving demand for higher memory bandwidth, and the bull case sees a potential rise to $173.05, supported by leadership in DDR5 registered clock drivers, HBM4E memory controller IP, and the LPDDR5X SOCAMM2 chipset for next-generation AI servers. Risks include a slip in royalty revenue to $69.64 million from $74 million a year ago, margin compression, and insider selling, but the firm’s forward price-to-earnings ratio of 24 compares favorably to Astera Labs’ 283, while Marvell’s hyperscaler demand signals a tailwind for Rambus royalties.
About megatrends
Artificial Intelligence › HBM & AI Memory ▲Demand
Semiconductors › Memory — DRAM, NAND & HBM ▲Demand
Semiconductors › Logic, Compute & Connectivity Processors Technology
Artificial Intelligence › EDA & Semiconductor IP ▲Demand
RMBS · Capital · Positive Analyst maintains buy rating and $108.43 price target despite recent drop, citing growth in AI demand and product leadership.
MRVL · Demand · Positive Hyperscaler demand for Marvell signals a tailwind for Rambus royalties, implying positive demand environment for Marvell.
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24/7 Wall St.·78dRead more →
Semiconductors▼impact 4

Montage Technology shares plunge; company says it is looking into the matter and operations are normal

Memory interface chip leader Montage Technology saw its shares tumble in the afternoon of July 16, with its A-shares falling over 17 percent and H-shares dropping more than 22 percent. The move came after South Korean prosecutors raided Montage Technology's office in South Korea on July 15 as part of an investigation into suspected price manipulation of semiconductor components. Offices of Japan's Renesas Electronics and US-based Rambus in South Korea were also searched. A Montage Technology representative responded that the company is looking into the relevant information and that operations are currently normal.
About megatrends
Semiconductors › Logic, Compute & Connectivity Processors Regulation
688008.CG · Regulation · Negative South Korean prosecutors raided Montage Technology's office over suspected price manipulation
6723.JP · Regulation · Negative Renesas office in South Korea raided in price manipulation investigation
RMBS · Regulation · Negative Rambus office in South Korea raided in price manipulation probe
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澎湃新闻·80dRead more →
Semiconductors▲

Rambus product revenue grows 15% on AI memory chipset demand

Rambus reported an 8% year-over-year increase in overall revenue in its most recent quarter, driven by a 15% jump in product revenue that includes its high-performance memory chipsets used in AI data centers. The company forecast product revenue of $98 million for the second quarter, implying 11% sequential growth from the $88 million recorded in the first quarter. CEO Luc Seraphin highlighted the growth of AI inference and agentic workloads as key long-term drivers, with Grand View Research projecting a 17.5% compound annual growth rate for the AI inference market and 46.2% for the agentic AI market through 2030. Rambus has a market capitalization of $13 billion and its stock has risen 25% year to date, while more than quintupling over the past five years.
About megatrends
Semiconductors › Logic, Compute & Connectivity Processors Competition
Semiconductors › Memory — DRAM, NAND & HBM Competition
Artificial Intelligence › HBM & AI Memory ▲Demand
RMBS · Demand · Positive Product revenue grew 15% on AI memory chipset demand, with strong forecast and long-term AI market growth.
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RMBS▲

Tradr to Launch Five Leveraged Single-Stock ETFs on July 1

Tradr ETFs announced it expects to launch five single-stock leveraged ETFs on Wednesday, July 1. The Cboe-listed funds will seek to deliver two times the daily performance of their underlying stocks, covering Ciena Corporation, Quantinuum Inc., Rambus Inc., Tower Semiconductor Ltd., and TTM Technologies, Inc. The new ETFs are designed for sophisticated investors and professional traders seeking short-term leveraged exposure.
CIEN · Capital · Positive Ciena is one of the underlying stocks for a new leveraged ETF, which may increase demand for its shares.
QNT · Capital · Positive Quantinuum is one of the underlying stocks for a new leveraged ETF, which may increase demand for its shares.
RMBS · Capital · Positive Rambus is one of the underlying stocks for a new leveraged ETF, which may increase demand for its shares.
TTMI · Capital · Positive TTM Technologies is one of the underlying stocks for a new leveraged ETF, which may increase demand for its shares.
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PR Newswire·100dRead more →
Artificial Intelligence▲2

Three Memory-Chip Stocks Poised to Benefit from AI Demand

Three semiconductor stocks—Rambus, Lam Research, and Teradyne—are positioned to benefit from the ongoing AI-driven memory supercycle without the extreme price surges seen in other memory names. Rambus, which makes high-end memory interface chips and licenses silicon IP, is expected to grow earnings by over 19% annually over the next three to five years, though it trades at 48 times 2026 earnings estimates. Lam Research, a supplier of semiconductor manufacturing equipment, derived approximately 39% of its systems revenue from memory in the third quarter of fiscal 2026 and is projected to grow earnings at an annualized rate of 21%. Teradyne, which sells testing systems for chipmakers, saw revenue jump 87% year over year in the first quarter of 2026, with AI driving roughly 70% of that revenue, and analysts forecast earnings growth averaging 34% annually over the next three to five years.
About megatrends
Semiconductors › Wafer-Fab Equipment & Lithography ▲Demand
Artificial Intelligence › HBM & AI Memory ▲Demand
Semiconductors › Memory — DRAM, NAND & HBM ▲Demand
Artificial Intelligence › AI Compute & Accelerator Silicon ▲Capital
Semiconductors › Advanced Packaging & Test (OSAT) ▲Demand
Semiconductors › EDA & Semiconductor IP ▲Demand
LRCX · Demand · Positive Lam Research benefits from AI-driven memory demand as 39% of systems revenue comes from memory.
RMBS · Demand · Positive Rambus is positioned to benefit from AI-driven memory supercycle with high-end memory interface chips.
TER · Demand · Positive Teradyne's testing systems revenue surged 87% YoY, with AI driving ~70% of revenue.
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The Motley Fool·107dRead more →