What smart money is saying about Rambus
3 funds in our archive have pitched Rambus, most recently Jacob Funds Management in October 2026.
Rambus Inc. is a global provider of semiconductor solutions, operating across key regions including the United States, Taiwan, South Korea, Japan, Europe, Canada, Singapore, and China. Their product portfolio encompasses advanced DDR memory interface chips, such as DDR5, DDR4, and DDR3, which are supplied to module manufacturers and original equipment manufacturers (OEMs). Additionally, Rambus delivers silicon intellectual property (IP), offering interface and security solutions vital for moving and safeguarding data in sophisticated applications. They also provide physical interface and digital controller IP, enabling the creation of industry-leading, integrated memory and interconnect subsystems. The company further holds an extensive patent portfolio, encompassing innovations in memory architecture, high-speed serial link technologies, and security products. Rambus distributes its offerings via a direct sales team and a network of distributors. Established in 1990, Rambus Inc. maintains its corporate headquarters in San Jose, California.
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Fund signal · last 12 months
6 lettersToo few moves on Rambus yet for a clear signal
Moves described in fund letters in our archive. A sentence published word for word by several funds of one house in the same quarter counts once.
Position history
Between Q4 2024 and Q4 2026, 8 fund letters reported a position in Rambus, with 2 buys (opened or added) and 3 sells (trimmed or exited).
| Quarter | Letters | Bought | Sold | Theses |
|---|---|---|---|---|
| Q4 2026 | 1 | 1 | 0 | 1 |
| Q3 2026 | 3 | 0 | 2 | 0 |
| Q2 2026 | 2 | 0 | 1 | 0 |
| Q3 2025 | 1 | 0 | 0 | 0 |
| Q1 2025 | 1 | 1 | 0 | 1 |
| Q4 2024 | 0 | 0 | 0 | 1 |
Bought and Sold count moves: the same sentence published by several funds of one house in a quarter counts once.
Fund activity · 8 positions · 5 moves
- New positionJacob Funds ManagementOctober 2026
“The Jacob Internet Fund added one new position in the quarter: Rambus.”
Rambus - September 2026
“We sold Rambus, a semiconductor intellectual property and chip company that generates revenue from memory interface products and licensing.”
Rambus - September 2026
“During the quarter, the Fund exited its investment in Rambus and reduced existing positions in Entegris, Inc., BE Semiconductor Industries N.V., Lowe’s Companies, Inc., Mastercard, Inc., O’Reilly Automotive, Inc., S&P Global, Inc., Texas Instruments, Inc., Shift4 Payments, Inc. and APi Group Corporation.”
Rambus - July 2026
“Itron (ITRI)- The quarter demonstrated improving profitability despite relatively subdued revenue, as a higher mix of software revenue and continued operational efficiencies drove margin expansion. Management raised full-year earnings guidance, highlighting the company's ability to improve profitability ahead of the next wave of grid infrastructure investment. Rambus (RMBS)- Reported a solid quarter, with revenue and earnings exceeding street expectations.”
Rambus - HoldsAve Maria FundsJune 2026
“In the second quarter, the Fund’s strongest performing sectors were Technology, Consumer Staples, and Materials. Technology was the standout performer, gaining 26%, driven by strong results from Texas Instruments, Inc. (semiconductor devices) and Rambus, Inc. (semiconductor devices), each of which advanced 54% during the quarter.”
Rambus - TrimmedBaron SMID Cap ETFJune 2026
Listed in Baron SMID Cap ETF’s reported holdings.
Rambus - September 2025
“Two individual highlights were Rambus and Tower Semiconductor, as both companies have become beneficiaries of the AI capex boom. We have owned Rambus since 2016; the company makes chips that go onto DRAM memory boards (DRAM = dynamic random access memory).”
Rambus - New positionAve Maria Growth FundMarch 2025
“For the three months ended March 31, 2025, the total return on the Ave Maria Growth Fund (AVEGX) was -1.65%, compared to the S&P 500® Index which returned -4.27%. The returns for the Ave Maria Growth Fund compared to its benchmark as of March 31, 2025 were: In the first quarter, top contributors to return included O’Reilly Automotive, Inc., HEICO Corporation, Roper Technologies, Inc., Mastercard, Incorporated and Expand Energy Corporation. Top detractors from return included Nvidia Corporation, Taiwan Semiconductor Mfg., BlackLine, Inc., XPEL, Inc. and Accenture PLC. We reduced the existing position in Silicon Laboratories, Inc. and completely exited the positions in McCormick and Valvoline. Proceeds were used to increase existing positions in BlackLine, Taiwan Semiconductor, and XPEL. We also initiated a new position during the quarter in Rambus, Inc.”
Rambus
Also mentioned · 1
These funds discuss Rambus as a competitor, benchmark or comparable, without disclosing a position in it.
- March 2026
“New to the sector this quarter was Rambus Inc., a manufacturer of high-performance memory subsystems used in Dynamic Random-Access Memory modules.”
Rambus
Fund coverage · 3 theses
- Jacob Funds ManagementOctober 2026
Rambus is a long-time leader in memory chip technology that should benefit from AI-driven data center bottlenecks, memory pooling, and MRDIMM adoption, supporting faster growth and higher margins.
Read the full thesis - Ave Maria Growth FundMarch 2025
Rambus is a semiconductor company leveraging its extensive patent portfolio to earn high profit margins and rapidly gaining market share by selling innovative chips that improve memory performance.
Read the full thesis - Polen Global SMID Company GrowthDecember 2024
Rambus is well-positioned to deliver high-teens compound growth in earnings and free cash flow through its innovative memory solutions and strong free cash flow generation.
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