On June 15, Tower Semiconductor rose 5.46% in pre-market trading, trading at $275.34/share, with turnover of $2.0963 million.

On the news front, the company announced a multi-year agreement with IQE for the supply of indium phosphide (InP) epiwafers used in optical connectivity products for data center infrastructure, further solidifying its supply chain positioning in the silicon photonics foundry space. This strategic partnership reinforces Tower's role as a key enabler of next-generation optical interconnect technology critical to AI-driven data center buildouts.

Additionally, earlier rumors regarding yield issues at the company's Fab 9 factory for 1.6T silicon photonics chips had been formally denounced as fabricated misinformation by core customer Innolight, with Tower confirming that process tuning is standard industry practice and that 800G silicon photonics chip yields have reached satisfactory levels. The dissipation of this negative sentiment continues to support confidence recovery.

Within the Semiconductors sector, the broader sector showed strength. Among individual stocks, Micron Technology up 7.3%, Marvell Technology up 5.58%, Advanced Micro Devices up 4.62%, Intel up 3.42%, NVIDIA up 2.52%.

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