AI boom supercharges analog chipmakers as MPWR shatters records

Before Monolithic Power Systems’ October print, the analog group was already showing that demand strength was broad rather than company-specific. StockStory said, “The 14 analog semiconductors stocks we track reported a very strong Q2,” and, as a group, “revenues beat analysts’ consensus estimates by 1.8% while next quarter’s revenue guidance was 4.9% above,” a pattern that fits AI-related demand spreading across enterprise data, automotive and communications applications instead of appearing as a narrow, one-product surge. That read was reinforced by NXP’s description of Q2 as broad “across all end markets and all regions,” with AI-linked categories including “Software-Defined Vehicles and Physical AI,” and “Data Center emerging as an additional growth engine.”

That breadth also showed up in company execution, where demand was converting into design traction and operating leverage. MPWR posted “$980.6 million, up 47.6% year on year,” beat expectations by “8.6%,” and delivered “a significant improvement in its inventory levels and a beat of analysts’ EPS estimates,” while CEO Michael Hsing said the results reflected “the strength of our diversified model”; separately, NXP described Q2 as “growth across all end markets and all regions,” driven by “Software-Defined Vehicles and Physical AI, with Data Center emerging as an additional growth engine.” MPWR’s Q2 performance was presented as the best quarter in the group, consistent with outsized analog growth and margin-supporting operational momentum already taking hold before the October print.

Well before October earnings, the market was already tying AI workloads to a physical buildout in data centers and the financing needed to sustain it. Goldman Sachs Research forecast data-centre power demand rising from 1%-2% of global electricity use in 2023 to 3%-4% by decade-end, with the US share likely more than doubling from 4%, while estimating current data-center demand at about 62 GW and AI’s share climbing from 13% now to 28% by 2027; against that backdrop, “Advanced Micro Devices recently stepped into the investment grade corporate bond market, pricing a $4.7 billion debt offering across three distinct tranches immediately after intel executed a similar” move. Suppliers were also already quantifying the AI-linked ramp: Infineon guided fiscal 2026 AI data-centre revenue above €1.6 billion, up from over €700 million in fiscal 2025 and €250 million in fiscal 2024, while Analog Devices said its data-centre business grew “more than 100% YoY in its fiscal” period.

The same pre-October work also connected that AI power ramp directly to shortages in the power-semiconductor chain rather than treating demand as abstract. SemiAnalysis projected 800VDC power-equipment markets reaching roughly $11 billion in 2028 and about $13 billion by 2030, while noting Murata’s capacity spending as a sign that demand was already outpacing supply; high-end MLCC lead times had stretched to 20-24 weeks, Murata, Samsung Electro-Mechanics, and Taiyo Yuden were running at 90%-95% capacity, Murata said expansion would only “slightly exceed 20%” over two years and still fall short of AI-driven demand growth, and the bottleneck was concentrated in high-voltage 800VDC components with visible pricing pressure. Those supply constraints sat alongside company-specific evidence that AI data-centre power demand was already translating into fast growth for analog and power-chip vendors, including Infineon’s path from €250 million in fiscal 2024 to over €700 million in fiscal 2025 and above €1.6 billion by fiscal 2026, and Analog Devices’ comment that its data-centre business grew “more than 100% YoY in its fiscal” period.

The cleanest confirmation arrived on October 29, 2026, when Monolithic Power Systems reported record Q3 revenue and paired it with an upgraded Q4 outlook, turning the broader thesis into a company-specific result. As GlobeNewswire - Industry News on Technology put it in the headline, “Monolithic Power Systems Posts Record $1.2B Q3 Revenue, Guides $1.35B Q4,” a formulation that matters because it captures both the backward-looking proof point and the forward-looking confidence in one earnings event.

That wording is the hard proof: the company did not merely post a solid quarter, it “Posts Record $1.2B Q3 Revenue,” establishing that the reported Q3 performance was at a record level and exceptionally strong by the company’s own history. Just as important, the same release said it “Guides $1.35B Q4,” showing that MPWR raised or issued guidance to $1.35 billion after the quarter, which directly supports the claim that October 29 confirmed the thesis with both results and a stronger outlook.

MPWR’s quarter looked less like a single-product surge than a company participating in several spending cycles at once: StockStory said the outperformance came from demand expansion across enterprise data, automotive 48V, and communications, while The Globe and Mail likewise described Q3 growth as broad across multiple end markets rather than confined to one customer segment. That pattern fits the wider analog backdrop, where growth was similarly diversified: “Industrial was up 53% year over year, automotive up 16%, communications up a massive 84% and even consumer… grew 6%,” with communications especially notable because “Data center now makes up 80% of that segment and it grew over 100% year over year.”

Just as important, the demand showed up in operating performance and forward expectations, not merely in top-line volatility: StockStory said operating margin expanded to 29.7% from 26.5% a year earlier, adjusted operating income reached $464.5 million versus $441 million expected, adjusted EPS was $8.19 versus $7.75 consensus, and Q4 revenue guidance of $1.35 billion sat 10.2% above expectations. The same broad-growth-to-margin pattern had already appeared elsewhere in analog, where “Gross margin hit 72.5%, operating margin was 50% and EPS came in at a record $3.45,” and Q4 called for revenue growth with gross margin “jumping another 150 basis points to around 74%” on “favorable mix,” underscoring that diversified demand can translate into durable leverage.