Fabrinet has more exposure to Nvidia's ramp than any other public company: Nvidia is 35% of its business, and it is Nvidia's primary contract manufacturer of 1.6T optical modules, and possibly Cisco's too. SemiAnalysis estimates Nvidia's data center compute revenue will run 20% above consensus in 2H FY2027 as Rubin ramps now that earlier HBM4 issues are resolved. Given that, the stock's current level looks interesting. x.com 

Semiconductors could stay undersupplied for a long time as more capable AI per dollar creates more uses and drives compute demand. Micron and NVIDIA trade at low forward P/Es because investors fear peak cyclical earnings, yet current earnings show no slowdown. Shortages may worsen as AI adoption spreads, though the industry could remain cyclical; a reversal of the forced rollover trade is hoped for, not assured. x.com  x.com  x.com 

Fabrinet is building capacity ahead of orders, so heavy customer concentration means one program pause could turn its inventory build into a writedown. Inventories rose 76% to $1.02B and property and equipment nearly doubled to $615.1M. Demand for its AI optical modules is strong: revenue rose 45% to a record $1.32B and Q1 FY27 guidance steps up again, but gross profit grew slower than revenue, so growth is volume-led, and income tax jumped to $60.5M from $6.0M. x.com 

A memory-chip shortage lasting until 2030 is good for Nvidia. SK hynix expects that shortage and reports a 632% profit jump. x.com 

Nvidia's shares remain pressured because neoclouds have yet to show demand revenue can cover debt service even at higher rates. CoreWeave and Nebius are dragging the shares, though that concern is being priced in and digested. Reuters reports ByteDance, Alibaba and Tencent ordered $35B in Nvidia chips; Elon Musk says SpaceX is on track to bring roughly 200,000 GB300 GPUs online per month through end-2026. Nvidia made a higher low, and the next higher-high target is $256. x.com  x.com  x.com  x.com 

Fabrinet captures AI optics volume but not pricing power, and the industry's chokepoint is moving. Revenue rose 45% to $1.316B, but gross margin fell 30bps to 12.2%, the record operating margin came from low opex, and full-year free cash flow was just $4M on $4.64B of revenue. Datacom transceivers have been flat to down for four quarters, with growth from DCI and HPC. Q1 guidance implies 4.3% less EPS per revenue dollar, versus a 2.5% rise a year earlier, more than usual seasonality. x.com 

Fabrinet trades at about 17x consensus FY2027 earnings despite 45% revenue growth last quarter. Data-center revenue rose 68% and now accounts for 51% of sales; consensus expects roughly 29% EPS growth in FY2027. Ramp delays and component shortages could defer that growth, and capacity spending still needs to produce cash flow as production scales. x.com 

NVIDIA's use of vendor financing suggests it fears competition rather than expecting to win on its chips' merits. Cisco's experience is a warning about how that strategy can end. x.com 

Rising Chinese competition and doubts about valuations add to Nvidia's downside risk as the AI sector bleeds. Nvidia's break from an uptrending triangular pattern rarely ends well; the AI bubble is cracking, and the trendline break marks the beginning of something much bigger. x.com 

Taiwan Semiconductor manufactures chips for competing AI designers, so its upside does not depend on which designer wins. Nearly every AI chip comes from the same fabs; Nvidia, AMD and custom-silicon competition all feed that business. The risk is that the whole AI race slows: 68% of revenue is tied to high-performance computing. x.com