Tower Semiconductor Rated Outperform by Mizuho on AI Optical Boom
In brief
- Mizuho Securities launched Outperform coverage with $300 price target on September 25
- Tower Semiconductor began high-volume shipments of laser-integrated photonic circuits supporting 800G to 1.6T data rates
- Company secured $1.3 billion silicon photonics revenue commitments for 2027 and $290 million customer prepayments
- Multi-billion-dollar Japan facility expansion announced in July focused on silicon photonics manufacturing
Accelerating shipments and customer commitments
Tower began high-volume shipments of laser-integrated photonic integrated circuits (PICs) on September 17. These components currently support data rates ranging from 800G to 1.6T, with a roadmap targeting 6.4T speeds by the first half of 2027.
The company's momentum is backed by concrete customer demand. Tower has secured $1.3 billion in silicon photonics revenue commitments for 2027, and customers have put real capital behind their orders—Tower received $290 million in customer prepayments for silicon photonics orders.
Capacity expansion and analyst consensus
In July, Tower announced a multi-billion-dollar facility expansion in Japan focused on silicon photonics and silicon-germanium manufacturing. The investment underscores management's confidence in sustained demand from AI infrastructure buildout.
Mizuho isn't alone in its bullish stance. Barclays launched its own coverage around September 18-21 with an Overweight rating and a $310 price target, signaling broad analyst agreement on Tower's structural advantages in optical connectivity for data centers.
"Tower's leadership position in silicon photonics gives it outsized exposure to one of the fastest-growing segments of AI infrastructure spending"
Both firms see Tower's dominance in a niche but critical segment of the AI stack. Optical interconnect components are essential plumbing in modern data centers, where they reduce latency and power consumption compared to copper alternatives. As AI clusters scale, demand for these components compounds.


