Nancy’s Stack

— Research · Analysis · Deep Dives —

Nancy’s Stack

Research and deep dives into tech, finance, and markets — from how industries are built to how markets price them, and the forces that move them.

Latest

Deep Dive · Supply Chain

July 2026

How AI Is Actually Made — The Complete 20-Stage Production Chain

From quartz sand to the AI assistants running on your phone — every stage in the semiconductor and AI supply chain mapped, with every key company, every ticker, and every role explained.

SEMICONDUCTORS · INFRASTRUCTURE · SUPPLY CHAIN · 20 STAGES · 60+ COMPANIES

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