Broadcom’s AI Revenue Surges 221% Yet Stock Lags, Creating Valuation Gap

Key points

• Broadcom’s fiscal Q3 revenue reached $29.591 billion, up 85.5% year-over-year, beating estimates.
• AI semiconductor revenue tripled to $16.7 billion, driven by custom silicon for hyperscalers.
• The stock trades at roughly 19x forward earnings, significantly cheaper than peers like NVIDIA (25x) and AMD (40x).
• Management projects AI revenue of $115 billion in fiscal 2027 and $230 billion in fiscal 2028.
• Key risks include supply constraints for wafers and HBM, as well as reliance on six major XPU customers.

Background

Following a strong Q2 performance in August 2026, where revenue rose 48% to $22.2 billion, Broadcom reported Q3 results in September. The stock initially dipped 5% post-earnings but rebounded, trading near $350. Morningstar maintained a $650 fair value estimate, projecting sustained AI demand through 2030. The current narrative focuses on whether the market will re-rate the stock to match its accelerating fundamentals.

How outlets are covering it

Seeking Alpha’s Bill Gunderson rates AVGO as a 'Strong Hold,' noting that while the 18x forward valuation is modest, weak momentum and safety grades deter buyers. He highlights the divergence between the company’s pivotal role in AI networking and its flat year-to-date performance. In contrast, 24/7 Wall St. offers a 'Buy' rating with 90% confidence, targeting $423.79. They argue the stock is undervalued relative to peers and that supply constraints, not demand, are the primary risk. While both agree on the strength of the AI revenue story, Seeking Alpha emphasizes caution due to technical weakness, whereas 24/7 Wall St. focuses on the long-term upside potential.

Why it matters

Broadcom’s performance serves as a bellwether for the AI infrastructure cycle. If the stock rallies to match its 221% revenue growth, it could signal a broader re-rating of AI chip stocks. Conversely, continued underperformance may indicate that supply bottlenecks or customer concentration risks are more significant than previously thought, affecting the entire semiconductor sector.

What to watch

Investors will watch Broadcom’s fiscal Q4 report on December 9, 2026. Key metrics to monitor include AI revenue against the $21.7 billion guidance and any updates on supply constraints for 2027 hyperscaler deployments. The stock’s reaction to this report will determine if the current valuation gap closes or widens.