Lumentum Holdings Inc. ("Lumentum"), a leading designer and manufacturer of innovative optical and photonic products, today announced its inclusion in the Nasdaq-100 Index®, marking a significant milestone in its journey over the past year. The company is expected to join the index prior to market open on Monday, May 18, 2026.

"Lumentum's inclusion in the Nasdaq-100 underscores the critical role our optical products play in AI-driven infrastructure," said Michael Hurlston, President and CEO. "As the speed and bandwidth inside data centers increase, so does the need for optical solutions. We are just beginning to see the first use cases of co-packaged optics, optical circuit switches and 200G lasers.

"This milestone enhances our visibility with global investors and reflects deep market confidence in our ability to scale the physical layer of the internet, driving both economic growth and technological progress in the communities where we operate."

Launched in January 1985, the Nasdaq-100 Index® represents a premier benchmark for global growth by featuring the world's most innovative leaders in technology and advanced infrastructure.

About Lumentum

Lumentum (NASDAQ:LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation communications. Built on decades of photonics innovation, Lumentum delivers high-performance lasers, modules, and optical subsystems that enable scalable, energy-efficient data center connectivity, advanced telecom networks, industrial manufacturing, and sensing applications. Headquartered in San Jose, California, the company operates R&D, manufacturing, and sales facilities worldwide. Learn more at www.lumentum.com.

Category: Financial

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Investors: Kathy Ta, +1.408.750.3853; investor.relations@lumentum.com

Media: Victoria McDonald, +1.408.404.0636; media@lumentum.com

Lumentum Joins the Nasdaq-100 Index®, Achieving New Milestone in Global Growth