Is VICR a Buy? What to Consider in 2026
Short answer
The bull case for Vicor Corporation (VICR) rests on AI data-center power demand: Rising power draw from AI accelerators is driving demand for denser, more efficient power delivery, which is Vicor's core specialty. Total revenue (FY2025) is ~$452.7 million (incl. ~$45M patent settlement). If you believe that thesis holds, the real questions become position sizing and overlap, not timing. The main risk to that view: Vicor faces intense competition from far larger power-semiconductor companies, including Monolithic Power Systems, Texas Instruments, Analog Devices, Infineon, Renesas, and Delta Electronics, and it notably lost socket share on some Nvidia GPU platforms to lower-cost integrated rivals. Whether VICR is a buy comes down to whether you believe the thesis. This is informational, not a recommendation, and Walnut is not an investment adviser.
Vicor Corporation designs, manufactures, and sells modular power components and complete power systems that convert electrical power efficiently for electronic devices. Headquartered in Andover, Massachusetts, it builds converters, power modules, and integrated circuits using patented high-frequency switching and its Factorized Power Architecture, which lets its parts be smaller and more efficient than conventional alternatives. Its products go into high-performance computing and AI accelerators, data centers, aerospace and defense, industrial equipment, and automotive, with recent focus on delivering the last inch of power to power-hungry AI chips through products like its NBM bus converters and vertical power delivery (VPD) modules. The investment picture centers on AI infrastructure. As GPU and accelerator power demands climb, Vicor is pushing its high-density 48V power architecture and vertical power delivery closer to the processor, and it has ramped its own vertically integrated fabrication to support large-scale deployments. Full-year 2025 saw product revenue growth return, record backlog, and a large patent-litigation settlement that boosted headline results. The stock has re-rated sharply on this AI narrative, leaving it with a high price-to-earnings multiple, so the debate is whether Vicor can win enough sockets against much larger rivals to justify that valuation.
What's the case for buying VICR?
1. AI data-center power demand.
Rising power draw from AI accelerators is driving demand for denser, more efficient power delivery, which is Vicor's core specialty. Its 48V-to-point-of-load architecture, NBM bus converters, and vertical power delivery modules target the last inch of power to the chip. Management pointed to strong AI, industrial, and defense demand, with Q1 2026 revenue up about 20% year over year.
2. Vertical fabrication ramp and margins.
Vicor invested in its own vertically integrated manufacturing to control quality and scale for large deployments, with fab utilization reported nearing 80% heading into 2026. Higher utilization and product mix helped gross margin reach about 55% in the fourth quarter of 2025. Better throughput supports both capacity for AI orders and margin leverage if volumes hold.
3. Backlog and royalty streams.
Backlog rose to about $177 million at the end of 2025, up roughly 14% year over year, giving some visibility into future shipments. Vicor also earns high-margin royalty and licensing revenue tied to its patent portfolio, which grew in 2025, and it collected a large one-time patent settlement. These intellectual-property streams can supplement product revenue but are lumpier.
4. Record 2026 targeted.
Management has guided toward a record year for product revenue in 2026, citing robust demand across high-performance computing, industrial, and defense end markets. New generations of its high-density modules aim to win designs inside next-wave AI server racks. Execution on new-product ramps and design wins is the key swing factor for that target.
What are the risks to VICR?
Vicor faces intense competition from far larger power-semiconductor companies, including Monolithic Power Systems, Texas Instruments, Analog Devices, Infineon, Renesas, and Delta Electronics, and it notably lost socket share on some Nvidia GPU platforms to lower-cost integrated rivals. Its business is concentrated and cyclical: results depend heavily on a handful of large customers and on the AI and industrial capital-spending cycle, so orders can swing sharply. The stock trades at a high price-to-earnings multiple (roughly 90 to 110 times earnings in mid-2026), which leaves little room for disappointment and can produce large drawdowns if growth slows. Royalty and one-time settlement income can flatter reported results, and a published short thesis argues AI-chip design trends could erode Vicor's competitive position over time.
How is VICR valued? (as of FEBRUARY 2026)
Snapshot for VICR as of July 2026, sourced from Yahoo Finance and may be delayed. Valuation figures move with price and earnings; verify the current numbers with your broker before deciding.
- Total revenue (FY2025): ~$452.7 million (incl. ~$45M patent settlement)
- Product revenue (FY2025): ~$350.3 million (up ~12%)
- Net income (FY2025): ~$118.6 million
- Diluted EPS (FY2025): ~$2.61
- Market cap (mid-2026): ~$12.9 billion
- P/E ratio (mid-2026): ~90 to 110x
Full-year 2025 total revenue reached about $452.7 million, but that includes a roughly $45 million one-time patent-litigation settlement, so the cleaner operating figure is product revenue near $350.3 million plus about $57.4 million of royalties. Cash and equivalents stood near $402.8 million with no meaningful debt. The stock re-rated sharply higher on the AI power theme, pushing its earnings multiple well above semiconductor-sector averages.
How do you decide if VICR is a buy?
Rather than asking whether VICR is a buy in the abstract, it tends to help to answer four questions:
- Thesis: do you believe the case above, and is it still true today?
- Time horizon: a single stock can be volatile, so a longer horizon absorbs more of the swings.
- Position sizing: a thesis can be right and the sizing still wrong; decide how much of your portfolio one name should be.
- Overlap: check whether you already hold VICR indirectly through an index or sector ETF before adding more.
For the full picture, see the VICR stock guide (what the company does, the ETFs that hold it, similar stocks, and the themes it fits). In Walnut you can ask its AI about VICR against your real portfolio and see your actual exposure before deciding.
The bottom line on VICR
The bottom line: Vicor Corporation's story right now is AI data-center power demand, with total revenue (fy2025) at ~$452.7 million (incl. ~$45M patent settlement). If you believe that narrative continues, the call is about sizing VICR sensibly and checking overlap with what you own; if you doubt it (the risk: vicor faces intense competition from far larger power-semiconductor companies, including Monolithic Power Systems, Texas Instruments, Analog Devices, Infineon, Renesas, and Delta Electronics, and it notably lost socket share on some Nvidia GPU platforms to lower-cost integrated rivals.), it is not for you. Decide from the thesis, not the ticker. Walnut is not an investment adviser.
Build a basket around VICR with Walnut
Use Vicor Corporation as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
Is VICR a good stock to buy right now?
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The case for Vicor Corporation right now is AI data-center power demand, with total revenue (fy2025) at ~$452.7 million (incl. ~$45M patent settlement). If you believe that thesis holds, VICR is a way to own it and the real questions are sizing and overlap, not timing; the main risk to that view is vicor faces intense competition from far larger power-semiconductor companies, including Monolithic Power Systems, Texas Instruments, Analog Devices, Infineon, Renesas, and Delta Electronics, and it notably lost socket share on some Nvidia GPU platforms to lower-cost integrated rivals. So it comes down to whether you believe the thesis. Walnut is not an investment adviser and this is not a recommendation.
What does Vicor Corporation do?
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Vicor Corporation designs, manufactures, and sells modular power components and complete power systems that convert electrical power efficiently for electronic devices.
What are the main risks of VICR?
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Vicor faces intense competition from far larger power-semiconductor companies, including Monolithic Power Systems, Texas Instruments, Analog Devices, Infineon, Renesas, and Delta Electronics, and it notably lost socket share on some Nvidia GPU platforms to lower-cost integrated rivals. Its business is concentrated and cyclical: results depend heavily on a handful of large customers and on the AI and industrial capital-spending cycle, so orders can swing sharply. The stock trades at a high price-to-earnings multiple (roughly 90 to 110 times earnings in mid-2026), which leaves little room for disappointment and can produce large drawdowns if growth slows. Royalty and one-time settlement income can flatter reported results, and a published short thesis argues AI-chip design trends could erode Vicor's competitive position over time.
What does Vicor Corporation do?
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Vicor designs and manufactures modular power components and complete power systems that convert electrical power efficiently for electronic devices. Its high-density converters and modules go into AI and high-performance computing, data centers, aerospace and defense, industrial equipment, and automotive applications.
Why is Vicor tied to the AI trade?
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AI accelerators draw enormous power, and Vicor specializes in delivering dense, efficient power the last inch to the processor using its 48V architecture, NBM bus converters, and vertical power delivery modules. Rising AI data-center buildout is the main driver behind its recent revenue growth and stock re-rating.
How did Vicor perform financially in 2025?
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For full-year 2025, product revenue grew about 12% to roughly $350.3 million and royalty revenue rose to about $57.4 million. Including a roughly $45 million patent-litigation settlement, total revenue reached about $452.7 million and net income was about $118.6 million, or about $2.61 per diluted share.
Is Vicor profitable?
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Yes. Vicor was solidly profitable in 2025 with net income near $118.6 million, helped by revenue growth, a fourth-quarter gross margin around 55%, and a one-time patent settlement. It also held about $402.8 million in cash with little debt at year-end 2025.
Walnut is informational and is not an investment adviser. This page is educational and not a recommendation to buy or sell VICR; figures are approximate and dated, and your own situation, time horizon, and risk tolerance should drive any decision. Verify current data before investing.