TSMC is the true picks-and-shovels play on AI, building a foundry moat that will take decades to bridge. It announced a $100B expansion in Arizona, bringing its US commitment to $265B, and CFO Wendell Huang said it is converting 5nm capacity to 3nm to meet demand and will not cede ground to competitors. Arizona costs are 4-5x Taiwan's, with short-term margin dilution, but 2nm now contributes revenue and AI-driven demand should outweigh the upfront capital. x.comÂ
