TSEM Stock Soars After Tower Semiconductor Partners With Nvidia For Data Center Optical Modules

Tower Semiconductor stated that its silicon photonics enables up to double the data rate compared to prior silicon photonics solutions.
In this photo illustration, a Tower Semiconductor Ltd. logo is displayed on a smartphone screen and in the background.
In this photo illustration, a Tower Semiconductor Ltd. logo is displayed on a smartphone screen and in the background. (Photo Illustration by Pavlo Gonchar/SOPA Images/LightRocket via Getty Images)
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Rounak Jain·Stocktwits
Updated Feb 05, 2026   |   9:06 AM EST
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  • Tower Semiconductor stated that its SiPho platform is optimized for high-speed optical interconnects and is an open platform available to all customers.
  • The company stated that its SiPho platform is suited for data center interconnects, high-performance computing, telecommunications, and autonomous cars.
  • The company owns five wafer fabrication facilities, with one in Israel, and two each in the U.S. and Japan.

Tower Semiconductor (TSEM) shares soared 17% in Thursday’s pre-market trade before paring some of the gains after the company announced a partnership with Nvidia Corp. (NVDA) for 1.6T data center optical modules.

Tower Semiconductor stated that its silicon photonics technology (SiPho) enables up to double the data rate compared to prior silicon photonics solutions.

Retail sentiment on Stocktwits around Tower Semiconductor was in the ‘bearish’ territory, with message volumes at ‘high’ levels.

What Is Tower Semiconductor’s SiPho Platform About?

Tower Semiconductor stated that its SiPho platform is optimized for high-speed optical interconnects and is an open platform available to all customers.

“Tower Semiconductor is proud to deliver advanced, high-speed technologies that support demanding data center and AI requirements,” said Tower Semiconductor CEO Russell Ellwanger.

The company stated that its SiPho platform is suited for data center interconnects, high-performance computing, telecommunications, and autonomous cars.

The SiPho technology enables the creation of photonic integrated circuits that use silicon as the optical medium for transmitting, generating, and manipulating data with light (photons) instead of electricity.

What Does Tower Semiconductor Do?

Tower Semiconductor is an Israel-based foundry that offers analog semiconductor solutions, technology, development, and process platforms to its customers.

The company owns five wafer fabrication facilities, with one in Israel, and two each in the U.S. and Japan.

In January, Tower Semiconductor announced a partnership with LightIC Technologies to expand the use of the SiPho technology beyond AI infrastructure to products such as LiDAR.

TSEM stock is up 1% year-to-date and 144% over the past 12 months.

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