Monolithic Power Systems is more critical to NVIDIA's roadmap than people understand, and the Street looks too light on its revenue growth and margin expansion. It is expected to keep 80%+ share on NVIDIA's Hopper and Blackwell platforms, is collaborating on the 800 VDC data-center power architecture and is expected to be a major supplier for Vera Rubin and the Kyber rack. The stock is breaking out to an all-time high and is spendy on multiples, so it needs a 24+ month hold. x.com 

These ten semiconductor stocks look cheap because each has a PEG ratio near or below 1, meaning growth outpaces valuation. Nvidia's Q1 revenue rose 85% and AMD's 38% with MI350 commitments; Broadcom's AI chip revenue rose 143% with a $73B AI backlog; Marvell's custom silicon doubled. Sandisk has $42B in contracted backlog, Micron's HBM is sold out through 2026, and Coherent, Credo and Applied Optoelectronics ride AI optics demand. ON Semiconductor is the slow-growth value play. x.com  x.com  x.com  … Show more

Alpha and Omega Semiconductor's pivot to AI data-center power is gaining traction beneath muted overall revenue. AI-focused power delivery in its advanced computing division grew over 40% year over year and doubled sequentially, and CEO Stephen Chang reports rising demand from hyperscalers and supercomputing operators. High-margin power ICs grew 30% to nearly 40% of product sales. Insider selling and valuation froth may cause volatility, and second-half results need to validate AI growth. x.com 

Wolfspeed has yet to show AI data centers can fix its economics. It has gone four quarters without sizing AI data-center revenue, reporting only decelerating sequential growth of roughly 50%, 30% and 20%, and calls the opportunity 'moderate'. Gross margin is -16.2%, with 1.7x debt to equity after a Chapter 11 that closed in September. Yet Lite-On's 800 VDC power racks, due for mass production in November, run on Wolfspeed's 200mm SiC, so a rerate could land on it first. x.com  x.com 

Nvidia looks cheap relative to the rest of the AI semiconductor trade, so long Nvidia against short SOXL, the 3x semiconductor ETF, should work well from here. Nvidia trades around 19–20x forward earnings while power, cooling and optical names sit above 30x, and as Gavin Baker says, all these AI valuations can't be accurate. x.com 

Alpha and Omega Semiconductor is a high-beta self-help bet that its current revenue and margin trough is a reset before AI data center, smartphone, PC and industrial power design wins lift content and margins in late 2026 and 2027. Fiscal Q2 revenue fell 11% sequentially to $162.3M at 22.2% gross margin, with Q3 guided lower. Reaching its $1B revenue, 30%+ margin model would yield over $100M of annual operating income, but costs are rising into a cyclical, competitive market. x.com 

Navitas is a one-customer concentration story facing heavy competition from tier-one suppliers. Its GaN portfolio winning Nvidia adoption played out, but STMicroelectronics and Infineon also supply Nvidia and are strong in GaN and SiC. GaN output may quadruple by 2030, yet SiC prices were hammered by Chinese capacity, unresolved, so revenue and margins could diverge sharply. Power and thermal efficiency are better played across these names than through Navitas alone. x.com 

Nvidia remains the undisputed king of AI compute and could become the Apple of AI hardware, cementing its position for a very long time. It is hedging the threat from customers' custom silicon, such as OpenAI's Jalapeño chip, by backing open-weight models and neoclouds, reducing its reliance on hyperscalers. Hardware competition may eventually pressure pricing, for example as memory costs fall, but margins are not under meaningful threat today, and the valuation is very attractive. x.com  x.com  … Show more

Nvidia's official 800 VDC architecture partners stand to benefit as AI racks move to high-voltage DC power. They span GaN and SiC chipmakers Navitas, STMicroelectronics, onsemi and Infineon; conversion and analog suppliers Alpha & Omega, Power Integrations, Texas Instruments, Analog Devices and Monolithic Power, whose VRM chips are already inside Nvidia GPUs; and rack, building and grid power players Flex, Vertiv, GE Vernova, ABB, Eaton, Schneider Electric and Siemens. x.com 

SolarEdge could re-rate from a broken solar story to an emerging AI data-center infrastructure play sooner than expected. It set a $600M solid-state transformer revenue target for 2029, far above a ~$250M base case for 2030, and its 800 VDC conversion stage is running under load in the lab, keeping a working system on track for end-2026. A joint white paper with NVIDIA adds credibility, though NVIDIA does not endorse it and there is no pilot customer or order yet. It is a 2027-2028 play. x.com  … Show more