$SOI
soitec9/10Does he own it?
Explicit first-person ownership: announced taking a sizable position around 43, repeatedly says he is long, cites his own cost basis (~43/44 EUR), states he plans to hold for a year or two, and lists Soitec among functional monopolies he personally owns. No explicit portfolio percent weight ever disclosed.
His thesis
Soitec is a near-monopoly supplier of silicon-on-insulator substrates essential to co-packaged optics and silicon photonics, the architecture being pushed by Nvidia for AI data centers. He argues it was trading at depressed valuations (around book value) due to legacy smartphone-cycle drag, while the photonics/CPO inflection in 2027-2028 represents a structural re-rating catalyst. He frames it as the substrate-layer equivalent of his AXT thesis and a multi-year hold.
How his view evolved
Started cautious on the foreign listing as a future bottleneck, then flipped to taking a sizable long around 43. Conviction rose as the stock multiplied; he took repeated victory laps versus skeptical analysts and media, reaffirming hold intent throughout the rally to roughly 4x.
Key points
- Self-described sizable long with stated cost basis ~43 EUR, held through a roughly 4x rise
- Core thesis: monopoly over SOI substrates for CPO/silicon photonics, cheap on legacy drag
- Listed explicitly among functional monopolies he personally owns; intends multi-year hold
Derived from a holistic read of his public posts — paraphrased, never quoted. See his actual posts about $SOI on X ↗