About

# About Capex Signal Capex Signal is a weekly notebook on **AI infrastructure spending (capex)** and what it implies for: - **Semiconductor equipment (semicap / WFE)** first (tools are the truth serum) - Then expanding outward to **AI chips** and **memory/HBM** as the downstream expression of that capex ## What you’ll get ### Free (public) - **Investor-friendly** bullets on what changed this week - A short **“so what”**: why it matters and what to watch next ### Premium (eventually paid) - The deeper layer: **mechanism + durability + second-order effects** - A clearer take (opinionated, but labeled) and explicit **“what would change my mind”** triggers - **Sources / citations** so you can verify the claims - A small **options/trading education corner** (general, risk-defined; not personalized advice) ## Why this is different Most market commentary stops at headlines. Capex Signal starts from a simple premise: > In semis, what matters is not the story — it’s the **constraint**. Constraints show up first in equipment intensity, process complexity, lead times, yield, and packaging/memory bottlenecks. That’s where durable signals tend to live. ## Ground rules - This is **not investment advice**. - I aim to be **clear and opinionated**, but I separate facts from interpretation. - I do **not** cover crypto. If you like the free notes, follow along — and if the premium layer proves useful, we’ll turn it on.