DNA Finland Extends Fiber-Grade Connectivity to Lower-Density MDUs with Harmonic

Rhea-AI Summary

Harmonic (NASDAQ: HLIT) announced that DNA Finland is expanding multi-gigabit, fiber-grade broadband to lower-density multi-dwelling units using Harmonic's SeaStar optical node. The solution leverages existing in-building coax, supports up to 16 optical mini nodes and is integrated with AI-powered network analytics.

Positive

• Deployment with DNA Finland extends multi-gigabit services into lower-density brownfield MDUs
• SeaStar node architecture supports up to 16 low-cost optical mini nodes per centralized node
• Use of existing MDU coax reduces new infrastructure requirements and operational costs
• Integration with AI-powered network intelligence enables proactive network issue resolution
• Approach expands DNA Finland’s addressable broadband market beyond its current subscriber base

Negative

• None.

News Market Reaction – HLIT

-1.44%

-1.44% Session close to close

In the May 19 session, HLIT declined 1.44%, reflecting a mild negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights Harmonic’s role in enabling DNA Finland to extend multi-gigabit, fiber-...

Analysis

This announcement highlights Harmonic’s role in enabling DNA Finland to extend multi-gigabit, fiber-grade connectivity to lower-density MDUs using the SeaStar optical node and existing coax infrastructure. It reinforces the company’s broadband focus and builds on prior product and deployment news from late April and mid-May. Investors may watch for additional operator wins, scaling of AI-powered network analytics, and how these deployments support the broader outlook raised in recent filings.

Key Figures

Current Price: $12.48 52-week High: $15.39 52-week Low: $7.80 +2 more

5 metrics

Current Price $12.48 Pre-news close

52-week High $15.39 52-week range reference

52-week Low $7.80 52-week range reference

Supported mini nodes 16 optical mini nodes SeaStar node support per hub

Global CPE footprint 46 million CPE devices cOS platform deployment worldwide

Historical Context

5 past events · Latest: May 13 (Positive)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
May 13	Deployment win	Positive	+3.1%	Inter Venezuela adopted cOS and fiber for nationwide XGS-PON backhaul.
May 11	Earnings results	Positive	+0.9%	Q1 2026 broadband revenue growth, higher outlook, share repurchases.
May 05	Conference participation	Neutral	+2.4%	CFO scheduled for investor conferences and fireside chat webcasts.
Apr 30	Product launch	Positive	+10.8%	New fiber-network products and AI-powered operations tools at Fiber Connect.
Apr 20	Earnings date notice	Neutral	-0.1%	Announcement of Q1 2026 earnings release and webcast timing.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Recent product and contract announcements, as well as strong broadband results, have generally coincided with positive share reactions.

Recent Company History

Over the last month, Harmonic has reported solid broadband momentum and product traction. Q1 2026 results on May 11 showed strong revenue growth and a raised outlook, followed by a detailed 10-Q and 8-K. Product-focused news, such as Fiber Connect 2026 innovations on Apr 30 and the Inter Venezuela deployment on May 13, drew notably positive reactions. Today’s DNA Finland deployment extends that theme of broadband expansion wins in international markets.

Key Terms

optical node, multi-dwelling units, coax, point-to-point fiber, +2 more

6 terms

optical node technical

"Harmonic's SeaStar Optical Node Enables Cost-Effective Broadband Service Expansion"

An optical node is a piece of telecommunications equipment that converts light signals carried on fiber optic cables into electrical signals used by local networks, and vice versa. For investors, it represents a key point of network capacity and reliability—like a subway station where trains (data) change form—so its number, location and technology affect a provider’s ability to serve customers, manage costs, upgrade capacity and generate revenue.

multi-dwelling units technical

"expanding multi-gigabit services into lower-density multi-dwelling units (MDUs)"

Buildings or complexes that contain multiple separate residences—such as apartment buildings, duplexes, townhouses or condominiums—where each unit has its own living space and often its own lease. Investors care because owning or financing many units in one property concentrates rental income, expenses and risks in one place; occupancy rates, rent levels, maintenance and local housing demand determine cash flow and value, making these assets a way to gain steady rental revenue and scale.

coax technical

"leverages existing in-building coax wiring"

Coax means to gently persuade or encourage someone to take an action, often using reassurance, incentives, or careful argument rather than force. For investors, companies, executives, and advisors may coax the market or shareholders to accept proposals, buy shares, or support strategic moves; understanding this helps spot subtle influence tactics that can shape sentiment, trading behavior, or the success of corporate plans. Think of it like steering a hesitant friend toward a choice with patient encouragement.

point-to-point fiber technical

"installed at the MDUs via point-to-point fiber connections"

A point-to-point fiber connection is a dedicated optical cable link that directly joins two locations, carrying large amounts of data with very low delay and high reliability. Investors care because it functions like a private high-speed highway for data—supporting cloud services, data centers, and telecom customers with predictable performance and recurring revenue, while also requiring upfront construction costs and long-term contracts that affect profitability and growth.

ai-powered technical

"connects seamlessly with Harmonic's Central AI-powered network intelligence"

"AI-powered" describes technology that uses artificial intelligence to perform tasks, make decisions, or analyze information automatically. It’s similar to having a highly skilled assistant that can learn from data, recognize patterns, and improve over time, helping to make processes faster and more accurate. For investors, this means better insights and more efficient operations, potentially leading to smarter investment choices.

cpe devices technical

"cOS platform powers next-gen broadband services through nearly 46 million CPE devices"

Customer Premises Equipment (CPE) devices are the physical hardware—like modems, routers, set-top boxes and VoIP phones—installed at a home or business to connect to a communications or internet service. They matter to investors because CPE drives recurring revenue from device sales, rental fees and service subscriptions, signals upgrades when networks evolve, and affects customer satisfaction and churn much like a coffee machine influences a café’s repeat customers.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Harmonic's SeaStar Optical Node Enables Cost-Effective Broadband Service Expansion in Previously Underserved Brownfield MDU Environments

SAN JOSE, Calif., May 19, 2026 /PRNewswire/ -- Harmonic (NASDAQ: HLIT) today announced that DNA Finland, the second largest mobile and fixed broadband operator serving the Finnish market, is expanding multi-gigabit services into lower-density multi-dwelling units (MDUs) with Harmonic's SeaStar™ optical node. The SeaStar node enables DNA Finland to deliver fiber-grade connectivity to brownfield MDU environments that have traditionally been challenging to serve due to permitting complexities and high rewiring costs. By leveraging Harmonic's compact, scalable optical node, DNA Finland can offer competitive, fiber-grade broadband services to the brownfield MDU market, significantly expanding its addressable market beyond the current subscriber base.

"Previously, deploying a dedicated node for every MDU with only a handful of subscribers was cost-prohibitive, making lower-density MDU opportunities economically unviable for us," said Markus Lehtiniemi, access networks design team lead at DNA Finland. "Harmonic's game changing SeaStar node gives us a cost-effective solution to extend high-speed broadband services into the lower-density MDU market we previously could not economically serve. This strengthens our competitive position, establishes a clear market advantage and accelerates business growth."

Harmonic's powerful SeaStar optical node enables DNA Finland to extend multi-gigabit connectivity through a centralized fiber forward architecture that leverages existing in-building coax wiring. The SeaStar node supports up to 16 low-cost optical mini nodes installed at the MDUs via point-to-point fiber connections, which then connect directly to the MDU's existing coax cabling. This helps the operator to reduce infrastructure requirements and lower operational costs while extending reliable high-speed broadband services to more MDUs.

Additionally, the SeaStar node connects seamlessly with Harmonic's Central AI-powered network intelligence and operations service providing DNA Finland with powerful network analytics for real-time network visibility. This enables the proactive resolution of network impairment issues to ensure reliable, consistent broadband service availability.

"DNA Finland's deployment of our SeaStar optical node sets a blueprint for operators looking to overcome the economics of traditional network expansion, enabling them to extend high-quality broadband into MDUs that were previously cost-prohibitive," said Stefan Meier, vice president of broadband sales, Europe at Harmonic. "By combining a compact footprint with scalable performance and operational efficiency, SeaStar allows service providers to unlock new revenue opportunities, improve deployment flexibility and accelerate time to market of new services while maintaining a superior subscriber experience."

Harmonic's market-leading cOS platform powers next-gen broadband services through nearly 46 million CPE devices worldwide for leading operators in North America, Europe, Latin America and Asia. Harmonic will showcase the transformative SeaStar node at ANGA COM, May 19-21 in Cologne, Germany in hall 8, stand C35. To schedule a meeting with Harmonic at ANGA COM, visit www.harmonicinc.com/events/anga-com. To learn more about the SeaStar node, visit www.harmonicinc.com/broadband/seastar-optical-node.

About Harmonic
Harmonic (NASDAQ: HLIT), the worldwide leader in virtualized broadband and video delivery solutions, enables media companies and service providers to deliver ultra-high-quality video streaming and broadcast services to consumers globally. The company revolutionized broadband networking via the industry's first virtualized broadband solution, enabling operators to more flexibly deploy gigabit internet services to consumers' homes and mobile devices. Whether simplifying OTT video delivery via innovative cloud and software platforms, or powering the delivery of gigabit internet services, Harmonic is changing the way media companies and service providers monetize live and on-demand content on every screen. More information is available at www.harmonicinc.com. 

Harmonic, the Harmonic logo and other Harmonic marks are owned by Harmonic Inc. or its affiliates. All other trademarks referenced herein are the property of their respective owners.

Legal Notice Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Statements concerning Harmonic's business and the anticipated capabilities, advantages, reliability, efficiency, market acceptance, market growth, specifications and benefits of Harmonic products, services and technology are forward-looking statements. These statements are based on our current expectations and beliefs and are subject to risks and uncertainties, including the risks and uncertainties more fully described in Harmonic's filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended Dec. 31, 2025, its Quarterly Reports on Form 10-Q and its Current Reports on Form 8-K. The forward-looking statements in this press release are based on information available to Harmonic as of the date hereof, and Harmonic disclaims any obligation to update any forward-looking statements.

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SOURCE Harmonic Inc.

FAQ

What did Harmonic (NASDAQ: HLIT) announce with DNA Finland on May 19, 2026?

Harmonic announced that DNA Finland is using its SeaStar optical node to extend multi-gigabit broadband into lower-density multi-dwelling units. According to Harmonic, this enables fiber-grade connectivity in brownfield MDUs that were previously uneconomical to serve due to permitting and rewiring challenges.

How does Harmonic's SeaStar optical node help DNA Finland serve brownfield MDUs?

SeaStar enables a centralized fiber-forward architecture that feeds up to 16 low-cost optical mini nodes per hub. According to Harmonic, these mini nodes connect directly to existing MDU coax cabling, cutting new infrastructure needs while extending reliable, high-speed broadband to more buildings.

What operational benefits does DNA Finland gain from Harmonic's SeaStar solution (HLIT)?

The solution allows DNA Finland to reduce infrastructure requirements and lower operational costs while expanding service. According to Harmonic, leveraging existing coax and centralized fiber, combined with AI-powered analytics, improves deployment efficiency, network visibility and proactive issue resolution across the MDU footprint.

How does Harmonic's AI-powered network intelligence enhance the SeaStar deployment for DNA Finland?

Harmonic's Central AI-powered service provides real-time analytics and visibility across the broadband network. According to Harmonic, this supports proactive detection and resolution of network impairments, helping ensure more reliable, consistent broadband availability for subscribers in the newly served multi-dwelling units.

Where will Harmonic showcase the SeaStar optical node after the DNA Finland deployment news?

Harmonic plans to showcase the SeaStar optical node at ANGA COM in Cologne, Germany, May 19-21. According to Harmonic, the solution will be presented in hall 8, stand C35, highlighting its capabilities for cost-effective multi-gigabit MDU expansion.