Serenity, the small-cap-focused stock-picker who back-maps the AI buildout to its upstream chokepoints, spent his commentary today reinforcing one of his highest-conviction ideas — the memory shortage — after fresh signs of pricing pressure out of China.

Memory inflation reaches China's accelerators. Serenity flagged reports that high-bandwidth memory (HBM) — the stacked DRAM bolted next to AI GPUs, whose packaging he treats as a genuine bottleneck — is now driving up Chinese AI accelerator prices by 20–50%. He pointed to indications that Huawei has lifted pricing on its Ascend 950DT well above quotes from two months ago, and that Cambricon's forthcoming 690 part is running 20–30% higher. He also noted that HBM sourced through grey-market channels inside China can reportedly cost several times the normal price.

For Serenity this is confirmation rather than surprise. His "memory supercycle" thesis holds that structural, AI-driven demand for DRAM, HBM and NAND is creating a genuine supply shortage that lets makers push through repeated price hikes and fatten margins. Micron (MU), the sole major US-based memory manufacturer, is the centerpiece of that view — a core position at roughly a 10% portfolio weight and a conviction rating near the top of his book. He has argued Micron's gross margins can run around 75% in this environment, and he leans heavily on its "Made in America" positioning as an advantage over Korean rivals exposed to tariff risk. Today's Chinese pricing dynamics, in his framing, are exactly the kind of inflation that should benefit anyone long memory. He extended the same logic to SK Hynix (SKHY) and Samsung, the two Korean giants that, alongside Micron, dominate the HBM supply he sees as scarce — noting all three stand to gain as accelerator makers absorb higher memory costs.

Notably, he framed the situation approvingly from an investor's seat: as someone positioned long memory, he said he is happy to see memory itself becoming a source of price inflation across the AI hardware stack.

A lighter macro aside. Away from the semiconductor thesis, Serenity offered a tongue-in-cheek riff on US fiscal policy. Reacting to a reported proposal to send roughly $5,000 per adult — which he tallied at about $1.35 trillion — he joked that a better use of comparable money would be upgrading every toilet in America to heated-seat Japanese fixtures from TOTO (which trades in Tokyo, not a name in his portfolio). By his back-of-envelope math, re-fitting some 335 million toilets, installation included, would run around $1.3 trillion — slightly cheaper than the cash handout, and, he quipped, better for approval ratings. The remark carried no investment thesis; it was a characteristic detour into playful cost-benefit modeling rather than a stock call.

Overall it was a low-activity day for Serenity, with no new positions or trades disclosed. The substance was a reaffirmation of the memory trade — his read that AI demand is turning HBM and DRAM into a pricing chokepoint, with Micron his preferred way to own it.

*This is derived commentary based on Serenity's public posts, not investment advice, and does not represent his own words verbatim.*