Marvell Technology Group (MRVL): UBS lifts Marvell’s target to US$335 as custom AI silicon, XPU attach and optical networking drive higher long-term estimates

Overview

This Analyst Day preview argues that Marvell’s AI-data-center exposure is strengthening, prompting UBS to raise medium-term estimates and its US$335 price target. The long-term outlook is constructive, but the report distinguishes it from a more balanced near-term event setup because investor expectations are already high.

Core views

UBS expects Marvell’s first Analyst Day in five years to outline a path toward roughly US$40-45bn of revenue and mid- to high-teens EPS by C2030, assuming gross margin can hold in the mid-50% range. The central driver is custom silicon, which UBS believes could become an approximately US$20bn business by then, supported by Marvell’s XPU-attach engagements. Near-term checks also point to upside at Microsoft, strong 800G/1.6T optical growth, and new XPU-attach programs. UBS argues that compute is increasingly moving into the network, increasing the value of NICs, SuperNICs and switches where Marvell has differentiated offerings. For Microsoft Maia, Marvell had previously discussed about US$0.7bn of C2027 Microsoft revenue while securing capacity supporting US$2.1bn for the year. UBS believes Marvell’s latest model was instead assuming roughly US$1.2bn, after the company increased its C2027 total-company revenue outlook by US$1.5bn to about US$18bn. UBS’s CoWoS supply-chain analysis indicates the Maia 300 program could reach around 350,000 units in C2027. It estimates Marvell content of roughly US$3.5-4.0k per chip because Marvell’s ASP excludes consigned HBM. UBS materially raises its XPU-attach assumptions as industry discussions indicate a broader opportunity for in-network processing. Marvell supplies NICs, SmartNICs, CXL and near-memory-compute products, including Structure A-class products; UBS expects NICs, switches and in-network processing devices to carry ASPs above US$1,000 per chip and, in some deployments, several thousand dollars of content per accelerator. Its C2027 XPU-attach estimate increases to US$1.8bn from US$1.0bn, and C2028 rises to US$5.1bn from US$3.6bn and above the company’s prior estimate of roughly US$2bn. UBS maintains an estimate of about US$1bn of Google accelerator revenue in C2028, rising to US$2-3bn in C2029 and C2030. It sees upside if Google enables 10-15% of new deployments for heterogeneous disaggregated inference, but retains a conservative unit outlook because Google programs usually scale over time, later generations often ramp more significantly, and an established TPU ecosystem remains. AI networking is the other major upward revision. UBS continues to expect strong optical growth and sees NVLink Fusion momentum across the ecosystem as beneficial to Marvell’s optical and switching businesses. It forecasts C2027 optical/networking revenue growth of 66% year-on-year, followed by 40% in C2028 versus a prior 29% forecast, and 30% in C2029 versus a prior 16% forecast. These drivers raise UBS’s C2027 revenue estimate to US$19.732bn from US$18.802bn and C2028 to US$29.926bn from US$27.427bn. Non-GAAP EPS rises to US$7.40 from US$6.90 for C2027 and to US$12.16 from US$10.86 for C2028. UBS raises its target price to US$335 from US$310 by maintaining a roughly 28x multiple while applying it to higher C2028E non-GAAP EPS of US$12.16. The report nevertheless highlights a tactical tension: investors may be looking for Analyst Day EPS guidance above US$20, which UBS considers unlikely. With crowded positioning, elevated expectations, and Marvell trading at roughly 45x next-twelve-month P/E, about 54x EV/next-twelve-month FCF, a roughly 26x P/E premium to the S&P 500 and a roughly 19-turn premium to semiconductors, UBS sees a balanced and potentially sell-the-news setup into the event despite its positive longer-term view.

Analysis framework

UBS combines industry checks, supply-chain signals from its CoWoS analysis, customer-program assumptions, product-content and ASP estimates, and a segment-level earnings model. It then revises revenue and EPS forecasts for custom AI silicon and optical/networking, and values Marvell by applying an unchanged P/E multiple to its higher C2028E non-GAAP EPS forecast.

Methodology notes

• Industry AnalysisUpstream-Midstream-Downstream Transmission

  Supply-chain and customer-program analysis

  UBS uses CoWoS supply-chain signals, customer accelerator ramps and Marvell’s content per chip to estimate how AI infrastructure deployments translate into Marvell revenue.

• Industry AnalysisVolume-price decomposition

  Unit-volume and ASP assumptions

  The report estimates Microsoft Maia units and Marvell ASP per chip, then applies higher-content assumptions for networking components to build XPU-attach revenue forecasts.

• Valuation methodsP/E and PEG Valuation

  P/E multiple valuation

  UBS derives its US$335 target by applying an unchanged roughly 28x multiple to C2028E non-GAAP EPS of US$12.16.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Marvell Technology Group (MRVL.US)

  Primary covered company; expected beneficiary of custom AI silicon, XPU-attach content and optical/networking demand.

  Strengths

  Differentiated NIC, SuperNIC, switching, CXL and near-memory-compute offerings; exposure to Microsoft Maia and Google accelerator programs.

  Comparison

  UBS notes Marvell trades at a premium to the S&P 500 and semiconductor peers; cloud customers seek an alternative source beyond AVGO/CSCO.

  Risks

  Crowded positioning, elevated Analyst Day expectations, potential sell-the-news reaction, slower customer-program scaling and storage-controller competition.

Key data

• 12-month price targetUS$335.00Raised from US$310.00; based on approximately 28x C2028E non-GAAP EPS.
• Current priceUS$261.94Price as of 25 Sep 2026.
• C2027 revenue estimateUS$19.732bnUp from US$18.802bn, a 4.9% increase.
• C2028 revenue estimateUS$29.926bnUp from US$27.427bn, a 9.1% increase.
• C2027 non-GAAP EPSUS$7.40Up from US$6.90, a 7.2% increase.
• C2028 non-GAAP EPSUS$12.16Up from US$10.86, a 12.0% increase.
• C2027 XPU-attach revenueUS$1.8bnRaised from US$1.0bn.
• C2028 XPU-attach revenueUS$5.1bnRaised from US$3.6bn.
• Microsoft Maia 300 units~350,000 units in C2027UBS estimate based on its CoWoS analysis.
• Marvell Microsoft ASP~US$3.5-4.0k per chipExcludes consigned HBM.

Impact & implications

UBS believes higher AI accelerator attachment, Microsoft Maia exposure and faster optical/networking growth support a substantially stronger medium-term earnings path for Marvell. The higher target price reflects this forecast revision, while the report warns that near-term share performance may be constrained if Analyst Day disclosures do not exceed already elevated investor expectations.

Risks

• UBS sees potential near-term sell-the-news risk because investor expectations are elevated and some investors may expect Analyst Day EPS above US$20, which UBS considers unlikely.
• Cloud customers may want another supplier beyond AVGO/CSCO, but the next opportunity window could take time to open.
• UBS may be underestimating internal controller efforts and capabilities at SSD suppliers.
• Google accelerator deployment could scale gradually, and the existing TPU ecosystem supports UBS’s conservative unit assumptions.

What to watch

• Analyst Day disclosure on the path to C2030 revenue and EPS, particularly whether management offers an EPS figure above US$20.
• Microsoft Maia 300 unit ramp, Marvell’s content per chip and progress toward its assumed C2027 Microsoft revenue contribution.
• Growth in XPU-attach programs, including Google’s accelerator ramp and the adoption of heterogeneous disaggregated inference.
• 800G/1.6T optical demand and whether NVLink Fusion momentum expands optical and switching opportunities.