Chipmaker Marvell’s weak data center forecast prompts AI investors to dump its stock

Marvell Technology shares declined 12% after hours following a Q3 revenue forecast below analyst estimates, disappointing investors amidst high expectations for AI-facing chipmakers. The company's Q2 data center revenue slightly missed projections, and its custom ASIC business faces 'lumpiness,' attributed to large cloud provider infrastructure build-outs and potential client delays like Microsoft's in-house AI chips. This performance raises concerns about Marvell's data center market position and suggests a longer path to consistent growth in its ASIC segment, contrasting with broader industry optimism.

Analysis

Marvell Technology's third-quarter revenue forecast of $2.06 billion, falling below the $2.11 billion consensus estimate, triggered a 12% after-hours decline in its shares, reflecting intense investor scrutiny of AI-related firms. While the company's second-quarter revenue of $2.01 billion met expectations, the critical data-center segment's revenue growth of 69% to $1.49 billion slightly missed the $1.51 billion projection. The primary concern stems from an unexpected forecast for its custom ASIC business, which management described as experiencing 'lumpiness' despite analyst expectations for acceleration. This weakness is attributed to the cadence of large cloud provider infrastructure build-outs and potentially exacerbated by customer-specific issues, such as a reported delay in Microsoft's in-house AI chip program and slower revenue growth at Amazon's AWS (17.5%) compared to its peers. While analysts like Stifel's Tore Svanberg maintain that Marvell is well-positioned for the ASIC market long-term, they caution that it could take 12-18 months for the business to achieve consistent growth, a stark contrast to the broad optimism expressed by competitors like Nvidia.

Key Decisions for Investors

• Investors should exercise caution as the weak Q3 guidance and unexpected softness in the custom ASIC business are likely to weigh on the stock until management provides a clearer path to re-accelerated growth.
• It is critical to monitor for any confirmation of Microsoft's reported in-house chip delays and the capital expenditure trends of Amazon's AWS, as these customer-specific factors are now key risks to Marvell's short-to-medium term performance.
• The current situation suggests a need to differentiate between the broad AI boom benefiting players like Nvidia and the more nuanced, project-dependent growth profile of Marvell, requiring a longer investment horizon of 12-18 months for its custom chip thesis to potentially materialize.
• Consider the recent $2.5 billion sale of the automotive ethernet business as a positive for balance sheet health, but recognize its impact is overshadowed by the core data center and custom silicon narrative driving investor sentiment.