From AT&T to Ciena: Tracking optical earnings in Q1 2026

Check out how the optical industry's key players performed in the fourth quarter of 2025.

The fourth quarter of the 2025 earnings reporting season has begun, and Lightwave is tracking how key players in the optical networking industry segment, which includes optical vendors and business service providers, performed.

Please check here for updates on service providers, vendors, and integrators in this segment.

Also, check out our Q4 2023, Q1 2024, Q2 2024, Q3 2024, Q4 2024, Q1 2025, Q2 2025, Q3 2025, and Q4 2025. 

You can also see how Lightwave tracks the fourth-quarter 2025 results of major players in the broadband industry.

April 21

Ekinops
www.ekinops.com
Ekinops' first-quarter revenue increased 8% sequentially to $32.3 million, driven by growth in the SASE and software segments.
- see our coverage 

April 22

AT&T
www.att.com
Fiber-based broadband was once again a highlight of AT&T’s first-quarter earnings results, which rose 2.9% to $31.5 billion.
- see our coverage

April 28

Corning
www.corning.com
Corning's Optical Communications sales rose 36% YoY to $1.8 billion, driven by demand for Gen AI products and large hyperscaler deals.
- see our coverage

Ribbon Communications
www.ribboncommunications.com
Ribbon saw its revenues decline 10% year-over-year to $163 million, driven by slow growth in its Cloud & Edge and IP Optical Networks segments.
- see our coverage

Verizon
www.verizon.com
Verizon reported total first-quarter operating revenue of $34.4 billion, up 2.9 percent year-over year.
- see our coverage

May 1

Shentel
www.shentel.com
Driven by strong Glo Fiber expansion, market revenue grew $6.4 million, or 34.6%, due to a 33.7% increase in data subscribers and stable data ARPU. First-quarter revenue grew 4.8% to $92.2 million.
- see our commercial fiber coverage
- and our broadband coverage

May 4

Cogent Communications
www.cogentco.com

May 5

Adtran
www.adtran.com
Adtran reported that first-quarter 2026 revenue was $286.1 million, with strong growth in the US and Europe, driven by fiber deployment and service provider investments.
- see our coverage

Lumen
www.lumen.com
Lumen reported business revenue declined 3.2% year-over-year to $2.44 billion, which it attributed to the continued improvement in its revenue mix in North America. It sees revenue potential in NaaS and its Private Connectivity Fabric (PCF) offerings.
- see our coverage

Lumentum
www.lumentum.com

May 7

Lightpath
www.lightpathfiber.com
Lightpath's first-quarter revenue grew 8%, driven primarily by hyperscaler wins and higher business services revenue.
- see our coverage

May 11

Uniti
www.uniti.com

May 13

Cisco
www.cisco.com

May 27

Dycom
www.dycomind.com
During the first quarter, Dycom reported total contract revenues of $1.97 billion, up 56.1% year-over-year.
- see our broadband coverage
- and our data center coverage

June 4 

Ciena
www.ciena.com
Driven by gains in its optical networking and routing and switching lines, Ciena’s revenues reached $1.57 billion, up 40% year-on-year and $71 million over its guidance, setting what it said was another quarterly record.
- see our coverage