Rising 1.6T switching demand favors optical suppliers, though their execution risks vary. Bank of America says the market could grow ~101% annually through 2030. Marvell's leading DSPs and Lumentum's supply-short 200G EML lasers are lowest risk; Applied Optoelectronics' capacity expansion and Fabrinet's customer concentration make them medium risk. Aeluma remains pre-commercial, while Lightwave Logic's polymer modulators are a high-risk moonshot despite its TSM partnership. x.com 

Optics and photonics should be among AI's biggest winners as faster GPU networks need optical connections that suppliers cannot expand quickly enough. Lumentum says some components are sold out through early 2029; Sivers is investing $30M to target more than 100M lasers a year, with operations expected in Q4 2027. Potential US restrictions on Chinese transceivers could reshape supply in 2027. Applied Optoelectronics and Sivers are the favorites. x.com  x.com 

Applied Optoelectronics' rally was momentum-driven, not evidence of a revolutionary company, and the market is finally figuring that out. The company cannot be blamed for raking in money during a once-in-a-blue-moon rally. x.com 

Demand for Applied Optoelectronics' transceivers is settled, so it is now a manufacturing story where execution is the only variable. Management says demand runs 20-40% above supply and informally guided about $330M of 800G/1.6T revenue in Q4, implying $480-500M total, about double Q3's guide. It expects to be the fourth qualified 1.6T supplier at a major hyperscaler with a >$200M order, and capacity rises to 650,000 units by end-2026. A Chinese transceiver ban would favor its US-made supply. … Show more

Applied Optoelectronics' quarterly miss reflects capacity constraints amid insane demand, not weak demand. Capacity comes online mid-quarter, so Q1 revenue of $151M with about $190M guided next quarter implies a steep ramp toward perhaps $550-600M per quarter by 1Q27. Second-half 2026 guidance of $750-760M versus $350-370M in the first half points toward $2B next year with high margins. The market overreacted, and the reset removes an overhang for long-term holders. x.com  x.com  x.com  x.com  x.com 

Applied Optoelectronics looks undervalued if its capacity converts into the modeled revenue ramp. From disclosed capacity, quarterly revenue could rise from $858M in Q1 2027 to $1.89B in Q4 and $2.14B in Q1 2028, against a $6.8B market cap. A $7.5B annualized exit rate in 2027 at 40% gross margins would make an unchanged valuation surprising. Lumentum's capacity agreements into 2030-31 suggest demand may last beyond 2027-28, but execution risk remains. x.com 

Applied Optoelectronics' operating leverage could be substantial if 800G scales and 1.6T follows, and the market may be underestimating its laser opportunity. 800G volumes are ramping with a major hyperscaler, its backlog more than doubled after $124 million of new orders, and US manufacturing adds a potential tailwind. About 15% short interest and recent dilution add uncertainty to this smaller, more volatile optics play. x.com 

Even half of a rumored jump in Applied Optoelectronics' transceiver shipments would be well above what is priced in. A Substack claims 800G shipments will rise from about 600,000-700,000 to about 5 million next year, plus about 100,000 1.6T units a month; the rumor is low-confidence. x.com 

Applied Optoelectronics' case now hinges on visible production progress. Its drop on OpenAI's revenue run-rate figures reflected an accounting question, not any change in laser or memory supply, per Carrio Research. If AAOI fails again next quarter and pushes its timelines out another quarter, it will be ugly. x.com 

Optical transceiver demand exceeds supply, and 1.6T lifts revenue per module for suppliers able to qualify capacity. Applied Optoelectronics raised at least $1.62B through 2026 ATMs; its last reported monthly capacity was 200,000 modules versus a year-end target above 650,000. Credo expects over $600M in FY2027 revenue across optical DSPs, PICs and modules, not modules alone. Shipments, yields and margins must prove out. Lumentum and Coherent already price in much expected growth. x.com