Shunsin's valuation could rebuild as CPO work lifts gross margins from the traditional OSAT range of 15-16% to 30-35% on CPO and 1.6T products. As Foxconn's packaging affiliate, it handles the high-precision FAU optical alignment step in Nvidia's CPO supply chain. Its ShunYun unit signed a mass-production OSAT deal with Enablence in March 2026, Vietnam capacity avoids tariffs, and Apple Watch SiP adds diversification. It is early and small, the kind of name that re-rates violently. x.com 

Shunsin's 15%–20% drop looks like a sector selloff rather than anything company-specific, despite its recently confirmed direct partnership with TSMC on COUPE. There appear to be no material negative developments beyond SemiAnalysis repeatedly posting bearish takes on the Nvidia ecosystem. x.com 

Low multiples give AI infrastructure good risk/reward as demand outruns supply and agentic workloads have runway. TSMC at 17x 2027E EPS appears to have all the accelerator and CPU demand it can handle this year and next; Ultra Clean is at 8x, MKS 12x, TTM 13x, Nvidia 14x and Celestica 15x. Kioxia at 3x and Samsung preferreds at 2.5x carry a big discount on pricing and cycle fears. Multiples imply a 2027 capex peak and meaningful drop; 2028 capex growth is expected, but below 2027's rate. x.com  … Show more

Shin-Etsu Chemical is shifting from a chemical conglomerate to a chip-supply bottleneck, owning lithography and chemistry patents essential to the glass-substrate era. In 1,000W+ AI data centers glass is already required, as organic substrates warp and crack under the heat of Nvidia's Rubin systems. Intel and Samsung have moved pilot lines into volume production, with Shin-Etsu supplying bonding chemistry and masks. Cyclical PVC cash funds its electronics push, supporting a re-rating. x.com  … Show more

FUSO Chemical should deliver strong returns as a key consumables supplier because solving the compute shortage requires a massive, multi-year supply buildout. Semiconductor holdings have fallen despite strong fundamentals as the market prices a peak, which looks wrong unless demand collapses. TSMC is expanding aggressively to meet compute demand through 2030, even as C.C. Wei refuses to overextend, and Nvidia's latest results underscored the urgency. FUSO trades back at about 16 times earnings. … Show more

The shift from copper to light inside AI data centers is accelerating, and near-packaged optics is pulling optical demand forward. Lumentum's CEO said NPO demand looks bigger than CPO and arrived sooner, and he sees about $40 per share of fiscal 2028 earnings power, above sell-side estimates, with none of it in the numbers yet. Coherent's CEO said CPO and NPO engagement has jumped, with comparable content per socket. NVIDIA has moved its Spectrum-X CPO switch into full production. x.com 

Soitec's discount likely won't last until 2027, because a 300% increase in silicon area for co-packaged optics is too strong a catalyst for the market to ignore for two years. Per @michaelsikand, a pluggable or LPO transceiver uses about 50 square millimeters of photonics-SOI per chip versus about 200 for a CPO switch package, with CPO production ramping in 2027. x.com 

AXT's indium phosphide wafer demand will explode even without co-packaged optics, so rumors of a CPO delay shouldn't hurt it. Per @RYANHINGSHING, reported CPO mass-production plans slipped by only one quarter, and whatever the route, whether pluggable, NPO or CPO, the structural bottleneck is the light source, with demand only rising. x.com  x.com  x.com 

Bizlink is a beneficiary of Nvidia's faster-than-expected co-packaged optics ramp, because CPO carries higher content for it than near-packaged optics. Spectrum-X CPO switches are in mass production as key component yields improve, with scale-out switch shipments forecast at 15k in 4Q26 and 100k in 2027. Scale-up optical engine estimates were revised to 6.5m in 2027 and 42m in 2028, as NVL576 is intact but Trainium 4 is slower. Full NPO adoption is retained for the cycle. x.com  x.com 

Lumentum's valuation is supported by Nvidia's co-packaged optics scale-out progressing faster than expected. Spectrum-X CPO switches are in mass production on better component yields, with shipments forecast at 15k in 4Q26 rising to 100k in 2027. CPO and NPO are seen contributing 12% and 26% of Lumentum's revenue in 2027 and 2028. Scale-up optical engine estimates were revised to 6.5m and 42m for 2027 and 2028, with full NPO adoption for the cycle retained. x.com