SOI.PA
Soitec (SOI.PA) is being discussed as a strategic supplier for silicon photonics and co‑packaged optics (CPO). The prevailing bullish thesis is that photonics-CPO will become a core AI scaling solution, benefiting substrate and networking silicon suppliers over multiple quarters. Recent heavy intraday selling appears momentum-driven; monitor volume, news flow and key technical levels for confirmation.
Recent proof-backed thesis calls
Latest published call: buy. Thesis: silicon photonics/CPO is the next AI scaling bottleneck solution; substrate suppliers and networking silicon stand to gain as adoption ramps. Source: asymmetricalbets.substack.com (confidence 0.60).
Post argues co-packaged optics (CPO) and silicon photonics are the next scaling lever for “1M GPU AI factories,” and claims Soitec has a near-monopoly in a critical photonics SOI engineered substrate used across the silicon photonics stack (NVIDIA CPO switches, Broadcom DC ASICs, 800G/1.6T transceivers at hyperscalers). Despite SOI being down ~75%, CEO retiring, and mobile end-market weakness, author expects a multi-bagger as optical interconnect market expands to 2030.
Latest market-close explanation
Research note: a 6.6% drop on >2x volume with no company‑specific news looks like a newsless sell‑off driven by profit‑taking, a technical break or institutional repositioning. Key levels: intraday low ~114, psychological support ~100, resistance ~123–125. Watch volume, company/customer news, and insider/orderbook activity for confirmation.
What most likely happened - With no company-specific news or earnings, the 6.6% drop on double+ volume points to a newsless sell‑off driven by profit‑taking, a technical break and/or a reappraisal of growth expectations. SOI had been a thematic AI/photonics name; that prior March narrative can leave shares vulnerable to sharp reversals when momentum stalls or large holders trim positions. The intraday action — gap from the prior close, test of 114.10 and heavy turnover — suggests stop-losses and at least one wave of institutional selling rather than a single microscopically timed event. What to watch next - Volume and follow‑through: if heavy volume persists on further weakness, it signals renewed distribution; if volume dries up and price stabilises above ~114–116, the move may be a corrective pullback. - News flow: monitor company releases, large customer (hyperscalers/optics OEMs) announcements, and any analyst updates or block trade reports that would explain institutional repositioning. - Technical levels: near-term support around the intraday low ~114, psychological/round-number support ~100; resistance back near 123–125 (today’s open/high). - Sector/macro drivers: semiconductor equipment and materials news, co‑packaged optics demand trends, and euro/FX moves that affect French-listed stocks. - Insider/activity and orderbook: disclosure of major share sales or new strategic orders would clarify whether this is profit-taking or a fundamental shift. Bottom line: the move looks like momentum/positioning driven rather than a company-specific shock. Confirmation will come from follow‑up volume, any news or analyst action, and whether 114 holds.
Current stance
Current recommendation: buy. The call is based on the expectation that co‑packaged optics and silicon photonics will become critical to AI datacenter scaling, supporting multi‑quarter upside for enabling substrate suppliers despite near‑term headwinds.
- buy via Silicon photonics/CPO becomes a core AI scaling bottleneck solution; enabling substrate suppliers and networking silicon benefit over a multi-quarter horizon. from https://asymmetricalbets.substack.com/feed (confidence 0.60)
Top authors on this asset
Active and historical ticker theses
Highlighted active play: a high‑conviction piece arguing that a roughly $2B company—down about 75%—is a near‑monopoly supplier of photonics SOI substrate used across silicon photonics stacks. The play notes near‑term risks including CEO retirement, ~50% mobile revenue exposure and uncertain CPO adoption timing that could prolong weak results and negative sentiment.
Unlock full asset monitoring
Watch for follow‑through volume, any company or hyperscaler announcements, and whether 114 holds. If you want the research source, read the original post at https://asymmetricalbets.substack.com/feed.