Tower Semiconductor's stronger-than-expected capacity expansion lets it fill more optical-chip orders itself, reducing customers' incentive to move to foundries they regard as technologically weaker. Its hybrid bonding packs dense connections between photonic chips and their driver electronics, an advantage viewed as effectively unmatched among Western suppliers. Tower remains one of the highest-conviction holdings despite the portfolio trim. x.com 

Tower Semiconductor is the only foundry besides TSMC with production-ready silicon photonics at scale. Every 1.6T optical module going into AI data centers needs Tower's wafers, and 70% of its capacity through 2028 is already secured. x.com 

Tower Semiconductor probably has little upside left, trading at 43x the $500M net profit it projects once its foundry buildout is complete and running at 85% utilization. By contrast, TSMC trades at 24x 2026 earnings. x.com 

Tower Semiconductor looks set to be the leading silicon-photonics foundry as the path to CPO runs through NPO. First NPO deployments are planned for 2027, with $1.3B of contract value for 2027 alone and more after. A multi-year IQE epi-wafer deal protects it from the InP bottleneck, it is bringing laser-to-silicon bonding in-house, and a dual-track 300 mm plan in Japan aims to quadruple capacity without dilution. Its SiPho coherent modules for Marvell have passed multi-million units. x.com 

Tower Semiconductor is becoming to photonics what TSMC is to GPUs: a foundry building the next AI stack. It fabricates silicon photonics chips that combine lasers, modulators and detectors on one platform, and is integrating Lightwave Logic into that platform right after massive AI optical spending. As AI networks scale to 800G and 1.6T, photonics becomes the next bottleneck, with limited supply and exploding demand. x.com 

Tower Semiconductor's good news looks mostly priced in at a $27 billion market cap, with upside hinging on capacity timing. A reported BofA Buy call with a $367 target rests on Tower's silicon photonics lead, and the numbers have substance: SiPho's run rate rose from $180 million to $680 million in a year, backed by a $1.3 billion 2027 contract. But its Arai, Japan fab reaches full production only in Q4 2027, a delay would push back the 2028 model, and $367 assumes those targets are hit on time. … Show more

Tower Semiconductor is a silicon photonics foundry behind the AI optical stack, and the market will price it for where its revenue mix is going. Its silicon photonics revenue doubled in 2025 on hyperscaler demand, more than 70% of capacity is booked through 2028, and it is partnered with Nvidia on next-gen optical modules. As @joedab12 noted, it is not a pure play yet: silicon photonics is still a minority of revenue, but the fastest-growing piece. x.com  x.com 

Tower Semiconductor's earnings call carried strong commentary, and the stock's steady performance makes it a calmer holding than Nebius. Its year-to-date and one-year trend show a steep angle of ascent, suiting an investor who cannot watch the screen all day. Proceeds from exiting Nebius go to Tower, with another third to be added. x.com  x.com 

Tower Semiconductor is a short because the market cannot digest competition. It sits on a short list alongside rates, TSMC, Vertiv, ASML and Broadcom; GlobalFoundries is not counted as that competition. x.com  x.com 

Tower Semiconductor's demand should climb as co-packaged optics gains strength, building on a report that Marvell has landed 5 million Tower PIC shipments for AI data-center optics. x.com