The Invisible Bottleneck: The Complete Series

Three parts. The only scaled non-TSMC advanced packaging play in the AI chain.

The complete Amkor thesis.

Amkor (AMKR) is the world’s largest independent OSAT and the only scaled alternative to TSMC for the 2.5D/3D advanced packaging that stitches GPU dies to HBM. Priced at an industrial multiple for the chokepoint of the AI supply chain. This page tracks every post, in order.

Last updated: April 24th, 2026

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CORE THESIS

Part 1 — Every…