Wedbush Warning on Google TPU Shift Adds New Risk to Broadcom's AI Narrative

What happened

Wedbush issued a stark warning on Broadcom after a media report indicated that MediaTek may take over Google's tensor processing unit (TPU) work, posing a direct threat to Broadcom's custom AI chip business. The report, published on June 25, 2026, challenges the assumption that Broadcom's AI semiconductor revenue—which surged 79% YoY in fiscal Q2 2026—is insulated from competitive displacement. While Broadcom's recent $164.6B in remaining performance obligations includes a long-term custom AI accelerator contract, the potential loss of Google's TPU business would undermine one of its key hyperscaler relationships. The DeepValue report had already flagged customer concentration risk, with top five end customers representing ~45% of net revenue, and this development amplifies that vulnerability. Wedbush's warning reinforces that Broadcom's AI growth story, while impressive, is not immune to design-win losses and competitive inroads from chipmakers like MediaTek.

Implication

If the Google TPU shift materializes, it could reduce Broadcom's AI semiconductor growth trajectory and force a downward revision of its AI revenue guide. However, the impact may be mitigated by Broadcom's diversified hyperscaler base (Meta, Amazon) and its $164.6B backlog. Over 6–18 months, this development underscores the need for Broadcom to demonstrate sustainable design-win momentum beyond its current customers, or risk a de-rating of its premium valuation (P/E 66.5).

Thesis delta

The previous thesis assumed Broadcom's custom AI chip deals with hyperscalers like Google were locked in, with the primary risk being supply constraints and VMware churn. The Wedbush report introduces a new, tangible competitive threat: Google potentially moving TPU work to MediaTek, which could erode a key revenue pillar and increase customer concentration risk. This shifts the investment narrative from one of pure execution on backlog conversion to one that must also account for design-win retention and competitive dynamics in custom silicon.