Harmonic’s Earnings Call Highlights Growth Amid Headwinds

Harmonic ((HLIT)) has held its Q1 earnings call. Read on for the main highlights of the call.

Harmonic’s latest earnings call struck an optimistic tone, with management highlighting strong broadband growth, record backlog and rising profitability, even as they acknowledged supply‑chain pressures, high customer concentration and stranded costs from the pending video sale. Investors heard a story of solid execution and improving visibility, tempered by cautious guidance in a choppy macro backdrop.

Broadband Revenue Surges Past Expectations

Q1 broadband revenue jumped 43% year over year to $121.7 million, handily beating the company’s own $100 million to $105 million guidance range. Management framed the upside as evidence of broad customer adoption of its solutions rather than isolated one‑off deals, reinforcing confidence in the durability of demand.

Diversification Gains in Rest-of-Market Customers

Rest‑of‑market revenue, outside the company’s largest accounts, surged 78% year over year and now represents 42% of broadband revenue. This momentum signals real progress in diversifying the customer base, an important offset to the still‑elevated concentration in a few major operators.

Record Backlog Underpins Revenue Visibility

Broadband backlog and deferred revenue climbed to a record $582.1 million, an 87% increase from a year ago. Management expects roughly 60% of this backlog to convert into revenue over the next 12 months, giving investors a clearer line of sight into future quarters despite macro uncertainty.

Profitability and EPS Outpace Guidance

Operating performance exceeded expectations, with Q1 operating profit reaching $26 million versus guidance of $18 million to $20 million. Non‑GAAP EPS came in at $0.17, well above the $0.11 to $0.12 forecast, showing that revenue strength is flowing through to the bottom line even before cost headwinds fully kick in.

Upgraded Full-Year Outlook Signals Confidence

The company raised its full‑year 2026 broadband revenue guidance to a range of $475 million to $495 million, about 5.4% above the prior midpoint. It also lifted its non‑GAAP EPS guidance to $0.57 to $0.67, roughly 13.8% above the earlier midpoint, pointing to growing confidence in both growth and profitability.

Healthy Cash Generation and Aggressive Buybacks

Harmonic produced $30.3 million of free cash flow in Q1, underscoring the cash‑generating power of the broadband business. The company returned capital aggressively, repurchasing about 4.2 million shares for $43 million in the quarter, bringing total buybacks under its $200 million authorization to $122 million.

Balance Sheet Supports Strategic Flexibility

The balance sheet remains solid, with $109 million in cash and cash equivalents at quarter‑end plus an undrawn $82 million credit facility. Management also expects all‑cash proceeds from the pending sale of the video business, estimated at about $145 million before adjustments, which should further bolster liquidity and capital allocation options.

Broader Product Reach and Growing Fiber Presence

Harmonic’s cOS platform now serves 150 customers and reaches 45.7 million connected devices, illustrating its expanding footprint with operators. Fiber solutions are gaining traction as well, representing more than 14% of appliance and integration revenue over the past year, with fiber bookings, including SeaStar for MDU deployments, increasing in Q1.

DOCSIS 4.0 and Network Intelligence See Uptake

The unified DOCSIS 4.0 customer base grew with new wins and deployment ramps, highlighting the company’s role in next‑generation cable upgrades. Network intelligence offerings such as Beacon are also gaining ground, with one example showing more than a 30% reduction in customer service calls, a compelling value proposition for operators.

Customer Satisfaction Continues to Improve

Customer satisfaction metrics moved higher, with the Net Promoter Score rising to 85 in Q1 from 82 at the end of 2025. Management linked the improvement to better execution and tangible customer outcomes, which could support renewals, expansions and cross‑selling over time.

Memory Costs and Product Ramps Pressure Margins

Elevated memory prices and the impact of new product ramps are expected to weigh on gross margins in the second half of the year. Management quantified the net memory headwind at about $6 million for the back half, with tariffs adding another roughly $2.3 million for the full year, implying some margin give‑back despite volume growth.

Component Shortages Create Deployment Risk

The company flagged ongoing supply constraints in key components such as CPUs, PCBs, switches and servers, particularly for some rest‑of‑market customers. While demand remains strong, these bottlenecks could delay customer deployments, prompting a cautious tone around near‑term revenue conversion.

Customer Concentration Remains a Key Risk

Despite diversification efforts, two customers each represented more than 10% of revenue and together accounted for 58% of total broadband revenue in Q1. This elevated concentration leaves Harmonic exposed to order timing, budget shifts or strategy changes at a small number of large operators.

Stranded Costs from Video Sale Weigh on Profit

Stranded costs tied to the pending video business sale totaled $2.3 million in Q1 and are expected to reach around $10 million for the full year. Management believes roughly 30% of these costs will be temporary within a year of closing, but they still represent a near‑term drag on reported profitability.

Cautious Sequential Outlook Masks Potential Upside

Guidance for Q2 broadband revenue of $115 million to $125 million implies relatively flat performance versus Q1, and management suggested similar flatness for subsequent quarters. This conservative stance reflects macro and supply‑chain uncertainty and may leave room for upside if deployments and supply conditions prove better than feared.

Inventory Build Tightens Working Capital

Inventory increased by $3.4 million in Q1, pushing days inventory on hand to 80 days, as the company chose to hold more stock to protect against component shortages. While this strategy supports delivery reliability, it also ties up cash and could add short‑term pressure to working capital metrics.

Receivables and DSO Likely to Normalize Higher

Days sales outstanding improved sharply to 62 in Q1 from 79 in Q4 2025, helped by strong collections and timing. Management cautioned that DSO is likely to drift back toward the mid‑ to high‑70s range over time, reflecting a more typical pattern for its evolving customer mix.

Macro and Geopolitical Risks Inform Tone

Executives acknowledged broader macroeconomic uncertainty and geopolitical risks, including tensions in the Middle East, as factors behind their prudent outlook. These external variables could affect both supply chains and customer spending plans, reinforcing the company’s decision to guide conservatively despite its strong backlog.

Guidance Signals Growth with Margin Headwinds

For full‑year 2026, Harmonic now expects broadband revenue between $475 million and $495 million, Q2 revenue of $115 million to $125 million, and a full‑year gross margin of 50% to 51.5% with Q2 at 52% to 53%. Operating profit is projected at $87 million to $101 million and non‑GAAP EPS at $0.57 to $0.67, incorporating tariff and stranded cost impacts, a $6 million second‑half memory drag and pressure from new product ramps.

Harmonic’s earnings call painted the picture of a broadband business gaining scale, deepening its technology footprint and producing solid cash, even as it navigates cost inflation and supplier bottlenecks. For investors, the story blends visible growth in DOCSIS 4.0, fiber and analytics with a risk profile shaped by concentrated customers, supply‑chain fragility and near‑term margin headwinds.