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2026-10-13

Serenity flags Korean memory selloff, points finger at Broadcom CEO's skeptical AI remarks

A quiet session for Serenity in terms of trading activity, but the stock-picker — tracked here for his habit of buying the obscure upstream suppliers that feed the AI buildout — weighed in on a sharp drop across Korean markets early Tuesday.

Korea's memory giants take a hit. Serenity described the selloff in SK Hynix (SKHY) and Samsung as a painful one to watch. The two Korean firms are the dominant producers of DRAM and high-bandwidth memory (HBM), the stacked memory that sits beside AI accelerators and whose packaging is one of the industry's tightest bottlenecks. They matter directly to one of his core convictions: a multi-year memory supercycle, in which AI demand drives DRAM, HBM and NAND into a sustained supply-constrained pricing upcycle. He typically expresses that view through US names like Micron and SanDisk, plus a Korean equity basket as a leveraged proxy for Samsung and SK Hynix — so a bad day in Seoul lands squarely on his thesis.

Broadcom's CEO as the spark. Serenity laid some of the blame on commentary from the chief executive of Broadcom (AVGO), the custom-silicon and AI-networking heavyweight whose custom accelerators and switching gear carry hyperscaler orders stretching years out. He took issue with remarks characterizing AI investors as gamblers and questioning whether enterprise AI is actually delivering a return — language he saw as pouring fuel on an already jittery market.

The irony is that Serenity generally treats Broadcom as a positive barometer rather than a target. He has pointed to its order visibility and its executives' comments on optical-interconnect timing and laser supply as validation for his real bets — the small photonics and materials suppliers feeding the industry's shift to co-packaged optics. Here, though, the same megaphone cut the other way, with sentiment-driven selling hitting the memory names he is counting on.

No new positions or exits were signaled today; the note reads as a read on sentiment rather than a change in stance. *This is derived commentary, not investment advice.*

Generated by the claude-opus-4-8 pipeline. Derived content; not investment advice.