The Invisible Bottleneck: The Complete Series

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

Apr 24, 2026

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 — Everyone Is Staring at the Wires

The packaging bottleneck, the Arizona build, why the market is looking the wrong way.

Part 2 — The Numbers Don’t Lie. The Multiple Is Wrong.

Valuation, peer comps, earnings trajectory, the re-rating math.

Part 3 — The Catalyst Map: When the Market Catches Up

Customer ramps, CHIPS Act timing, the twelve-month discovery path.

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ONGOING COVERAGE

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