Broadcom’s fiscal Q4 2026 AI semiconductor revenue guidance of $21.7 billion—representing 236% year-over-year growth—serves as the central anchor for trader expectations, following Q3 results of $16.7 billion that exceeded prior targets. Strong visibility into custom AI accelerator (XPU) deployments for hyperscalers including Google, OpenAI, and Anthropic, alongside networking demand and multi-year supply agreements, underpins the outlook, with management raising full-year 2026 AI guidance to $58 billion and projecting $115 billion for fiscal 2027. Key upcoming catalysts include the early December earnings release, where actual results will be measured against this target amid risks such as margin compression from a higher AI mix, customer concentration, and execution on financing commitments.