Serenity, the stock-picker whose reconstructed views this site tracks, used a quiet-market day to circle back to one of his highest-conviction bets after a piece of supply-chain commentary appeared to support a call he first made earlier this year.

A validation moment for the FAU thesis. The centerpiece of his day was FOCI Fiber Optic Communications (Taiwan-listed, ticker 3363), a maker of fiber array units — the precision components that connect optical fiber to a photonic chip. FAUs are exactly the kind of upstream chokepoint Serenity hunts for: a critical, hard-to-source part with few substitutes that the whole optical buildout depends on. His broader framework is to read Nvidia's (NVDA) roadmap — here, the shift toward co-packaged optics, or CPO, which places the optical engine right beside the switch or GPU die to save power and boost bandwidth — as a signal of where scarcity will land, then buy the smallest merchant supplier that the giants quietly rely on.

He pointed to translated Taiwanese media commentary suggesting that FOCI, alongside Largan Precision (3008, a Taiwanese optics maker best known for smartphone camera lenses) and China's TFC, has entered Nvidia's FAU supply chain. The report cited roughly 600,000-700,000 FAUs needed for the optical engines in this year's estimated 20,000 Spectrum-X networking systems, with demand potentially rising to several million units by 2027 — and existing capacity already unable to keep up. Serenity latched onto that capacity-shortage line, which maps directly onto his thesis that FAUs are a genuine bottleneck rather than a commodity part. He views FOCI as a deeply undervalued CPO pure-play with room to become a dominant supplier to TSMC and Nvidia, though he was careful to note the timing is still early: mass production isn't expected until the second half of 2027, so today's news is confirmation of the direction, not an immediate catalyst.

TSMC as the anchor. Taiwan Semiconductor (TSM), the world's leading contract chipmaker and the foundry nearly every AI chip ultimately passes through, featured again as the demand center behind the FAU story. Serenity holds TSM as a roughly 5% "safe anchor" position — the cleanest proxy for the whole AI trade — while he chases higher-upside upstream names like FOCI around it.

A passing nod to the power trade. He opened by acknowledging the day's retail chatter around Bloom Energy (BE), a US fuel-cell maker seen as a beneficiary of surging data-center power demand, which he noted jumped nearly 12% on attention tied to well-known political traders. Serenity does not own BE and offered no analysis of it — he used it mainly as a contrast, redirecting attention from the crowded headline name toward the obscure photonics chokepoint he actually cares about.

The takeaway. Nothing changed in Serenity's positioning today, but the FOCI mention in a Nvidia-linked supply-chain report is the kind of third-party validation his back-mapping approach is built to anticipate — a small confirmation that the FAU bottleneck he flagged months ago is starting to surface in the trade press well ahead of broader institutional attention.

*This is derived commentary for informational purposes only and is not investment advice.*