Marvell Technology has pulled off a feat few chipmakers manage: it has reinvented its business model so thoroughly that the stock has surged more than 325 percent in twelve months, and now it earns a spot in the S&P 500. On June 22, S&P Dow Jones Indices will formally add the chip developer to the benchmark, alongside Flex, while Campbell Soup and Pool Corporation are ejected. The move triggers an immediate structural shift: every passively managed exchange-traded fund tracking the S&P 500 must buy Marvell shares, channeling billions of dollars into the stock by regulatory fiat. The market already priced in much of that demand, with the equity gaining more than four percent on the day of the announcement to close at 260.90 euros. Since the start of the year, the rally totals roughly 242 percent.
The company’s ascent, however, rests on far more than index inclusion. Marvell has transformed from a modest networking-chip supplier into a critical designer of custom artificial-intelligence silicon for hyperscale cloud operators. Unlike Nvidia’s standardised GPU accelerators, Marvell builds bespoke AI chips tailored to the specific workloads of individual hyperscalers — and it wraps those chips with proprietary optical and switching layers. That dual positioning places Marvell between the GPU vendors and pure-play ASIC houses, a sweet spot that TrendForce expects to see the custom-chip market grow 45 percent in 2026, against just 16 percent for GPU shipments. Counterpoint Research forecasts Marvell will capture roughly 25 per cent of the custom-AI-accelerator market by 2027, trailing Broadcom’s roughly 60 per cent share but still commanding a slice of a market projected to reach 118 billion dollars by 2033.
The financials confirm the momentum. For the fiscal year 2026, Marvell reported record revenue of 8.195 billion dollars, an increase of 42 per cent year over year. The first quarter of fiscal 2027 added another record: 2.418 billion dollars, up 28 per cent from the prior-year period, with operating cash flow reaching 638.8 million dollars. The data-centre business now contributes more than three-quarters of total revenue. Management lifted its full-year guidance sharply, projecting 11.5 billion dollars in revenue for fiscal 2027 and 16.5 billion for fiscal 2028 — growth of 40 and 45 percent, respectively, from the previous year. For the current second quarter, Marvell expects approximately 2.7 billion dollars in sales.
The most consequential development, though, was the strategic partnership announced in March 2026 with Nvidia. The GPU giant is investing two billion dollars in Marvell, and in return Marvell will supply custom XPUs and NVLink-Fusion-compatible networking technology, while Nvidia contributes Vera CPUs, ConnectX NICs, BlueField DPUs and Spectrum-X switches. The arrangement goes beyond a typical supply deal: it integrates Marvell’s custom chips tightly into Nvidia’s ecosystem, making them dependent on Nvidia’s infrastructure — a relationship the market interpreted as a seal of approval. At Computex 2026 in Taipei, Nvidia CEO Jensen Huang appeared on stage alongside Marvell CEO Matt Murphy, calling Marvell the “next trillion-dollar company” and describing its networking and connectivity chips as “indispensable” for AI data centres. That single day saw Marvell’s stock surge more than 32 per cent.
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Marvell is also extending its technological lead through acquisitions. In February 2026, it completed the purchases of Celestial AI for 3.25 billion dollars and XConn Technologies, adding photonic fabric technology to its portfolio. Both deals already contributed to the first-quarter results. Separately, Google is in talks with Marvell to develop two new AI chips — a memory-processing unit and an inference-optimised TPU — meaning Marvell now sits on the roadmaps of Nvidia, Google, Amazon and Microsoft simultaneously.
Yet the rally has a price tag that demands scrutiny. At a market capitalisation approaching 200 billion euros, Marvell trades at a forward price-to-earnings multiple of nearly 65 — far richer than peers such as Nvidia, Taiwan Semiconductor and Broadcom. The stock’s relative-strength index stands at 71.7, signalling overbought conditions, and the current price of 260.90 euros sits 73 percent above the 50-day moving average. The consensus analyst target of 202 euros implies a downside of roughly 22 percent from here. Over the past three months, insiders have sold 32 million dollars’ worth of shares without a single reported purchase — classic profit-taking at elevated valuations.
The countdown to June 22 leaves institutional investors about two weeks to align their portfolios with the new S&P 500 composition. The passive-demand wave is imminent, but it collides with a stock that has already priced in years of ambitious growth. Whether Marvell can deliver on the 16.5-billion-dollar revenue target for 2028 while maintaining margins will determine whether the index tailwind is a launching pad or a ceiling. For now, the company’s structural transformation is complete — the custom-chip pivot has made it an indispensable pillar of the AI infrastructure buildout. The question is whether the market has already paid for that future.
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