Tower Semiconductor (TSEM) Is Up 9.1% After Major AI Photonics Deal And IP Settlement - What's Changed - simplywall.st

In June 2026, Tower Semiconductor (TSEM) stock rose 9.1% following a multi-year supply agreement with IQE plc for Indium Phosphide epiwafers and a worldwide royalty-free patent license resolving an IP... Read original →

Tower’s InP epiwafer deal with IQE isn’t just an IP settlement—it removes a critical materials bottleneck in silicon photonics (SiPho), accelerating 800G/1.6T optical interconnects for AI data centers. This pressures legacy players like Lumentum to reconfigure supply chains. Geopolitically, the U.S. CHIPS Act offers scant support for non-CMOS processes, leaving Tower’s capital-intensive model exposed without subsidies. Heavy reliance on Marvell heightens revenue volatility risk. While TI and Analog Devices aren’t SiPho-focused today, their analog integration prowess could let them leap into co-packaged optics via hybrid bonding. Within 18 months, SiPho will shift from optional to essential in AI infrastructure—but Tower must prove by 2027 that its yield and ramp can justify the $3.4B revenue forecast, or its valuation premium collapses.