Broadcom Slumps 27% Below Record Highs as Google's Marvell Deal Clouds AI Growth Outlook

The Quick Take

• Broadcom stock slumps to 27% below record highs despite strong underlying AI revenue numbers
• Marvell's expanded Google chip partnership raises concerns about AVGO losing key custom silicon share
• Market questions whether Broadcom's AI growth premium is justified with Google now diversifying to Marvell

Broadcom shares have declined to trade approximately 27% below their record highs, even as the company continues to report strong AI-driven revenue growth, following news that Google has significantly expanded its custom AI chip partnership with Marvell Technology. The juxtaposition of strong financial performance and declining stock price highlights investor concern that the AI growth premium Broadcom has commanded is beginning to erode as hyperscaler customers diversify their chip sourcing.

The Marvell-Google custom chip deal — which includes a $12 billion equity option for Alphabet in Marvell — signals that Google views a multi-supplier approach to custom AI silicon as strategically preferable to exclusive reliance on Broadcom's ASIC design capability. For Broadcom, which has built a significant portion of its AI revenue narrative around deep hyperscaler partnerships including with Google, the news raises questions about the long-term concentration and predictability of that revenue stream.

From an investor perspective, the central debate is whether Broadcom can rapidly replace any potential Google revenue loss with new hyperscaler agreements, either expanding existing relationships with Amazon and Microsoft or adding new enterprise customers to its custom chip portfolio. The AI ASIC market is expanding, and Broadcom's engineering depth and manufacturing relationships remain formidable competitive advantages. However, until management provides explicit guidance on the deal's impact on forward chip revenue, the stock's discount to prior highs may persist as investors price in transition risk.

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