Semtech Earnings Call: Record Growth, Data Center Surge

Semtech Corp. ((SMTC)) has held its Q4 earnings call. Read on for the main highlights of the call.

Semtech’s latest earnings call struck an upbeat tone, highlighting record annual revenue, sharp earnings growth, and accelerating momentum in its data center business. Management acknowledged some near-term headwinds from rising costs, supply constraints, and mixed end-market demand, but emphasized stronger margins, cash generation, and an accretive M&A strategy as the dominant themes.

Record Annual Revenue and Consistent Quarterly Growth

Fiscal 2026 net sales reached a record $1.05 billion, up 15% year over year, underscoring a solid demand environment across key franchises. Fourth-quarter net sales came in at $274.4 million, up 3% sequentially and 9% year over year, marking the eighth straight quarter of revenue growth and reinforcing the company’s growth trajectory.

EPS Nearly Doubles as Profitability Scales

Adjusted diluted EPS for the full year surged to $1.71, a 94% jump from the prior year as operating leverage kicked in. In Q4, adjusted diluted EPS was $0.44, up 10% year over year and above the midpoint of guidance, signaling better-than-expected execution even against higher investment levels.

Margin Expansion Highlights Operating Discipline

Adjusted gross margin for the year landed at 51.6%, above the midpoint of the company’s outlook, reflecting improved mix and cost control. Total Semiconductor Products gross margin reached 61.7%, rising 40 basis points sequentially and 350 basis points year over year, a key driver behind the outsized EPS improvement.

Data Center Business Delivers Record Growth

Data center revenues hit a record $223 million in fiscal 2026, up 58% year over year as Semtech’s high-speed connectivity products gained traction. Q4 data center revenue was $63 million, up 12% sequentially and 26% year over year, and management expects this segment to grow more than 50% again in the coming fiscal year.

Cash Flow Strengthens Balance Sheet Flexibility

Operating cash flow in Q4 was $61.5 million, up 30% sequentially and 84% from a year earlier, underpinning a sharp improvement in free cash generation. Free cash flow reached $59.1 million, while cash and equivalents rose to $195.2 million and adjusted net leverage declined to 1.3 times, down from 2.3 times a year ago.

HIFU Acquisition Deepens Vertical Integration

The acquisition of HIFU brings in-house indium phosphide lasers and gain chips, enabling tighter integration with Semtech’s TIAs and drivers for optical modules. Management expects HIFU to be accretive to non-GAAP EPS within the first year and to lift potential content per 3.2T module to roughly $80, enhancing Semtech’s share of the data center wallet.

ACC, LPO and NPO Expand Data Center Ecosystem

Semtech highlighted design wins and ecosystem roles across several interconnect technologies, positioning the company for multi-year content gains in cloud infrastructure. CopperEdge ACC shipments start this quarter with a ramp mid-year, while LPO design wins, XPO MSA membership, co-authorship of the ACC MSA, and NPO development broaden its data center portfolio.

LoRa Franchise Shows Durable Growth Profile

LoRa revenues reached $156 million for the year, up 34% and underscoring strong adoption in low-power IoT applications. Q4 LoRa net sales were $39.6 million, up 7% year over year, and management outlined a long-term growth expectation of around 20% annually with quarterly sales targeted in the $35 million to $45 million range.

Interest Expense Falls Sharply, Supporting EPS

Semtech’s financing line turned from a drag into a modest tailwind as balance sheet repair progressed. The company recorded net interest income of $0.1 million in Q4 versus $11.2 million of net interest expense a year ago, and fiscal-year adjusted net interest expense fell to $11.5 million from $70.6 million in fiscal 2025.

Product Launches Showcase Innovation Across Markets

At recent industry events, Semtech demonstrated a broad array of copper and optical solutions, including 1.6T ACCs, 448G per-channel CopperEdge, and advanced TIA and modulator drivers powered by HIFU lasers. In parallel, the firm launched new industrial 5G RedCap routers under the AirLink RX-400 and EX-400 lines, targeting emerging industrial connectivity use cases.

HIFU Capacity Constraints Temper Near-Term Upside

Management noted that HIFU’s gain chips and continuous-wave lasers are currently capacity constrained, limiting near-term upside despite strong demand. While the company plans to add capacity, it cautioned that industry-wide tightness in epi and fab equipment and long lead times could impact the speed of the ramp.

Initial HIFU Ramp Weighs on Near-Term Margins

Guidance calls for Total Semiconductor Products gross margin of 60.4% in Q1, about 130 basis points lower sequentially as HIFU integration and ramp costs flow through. This temporary margin pressure reflects upfront investment to support higher-value laser content that is expected to enhance overall profitability over time.

Higher OpEx Signals Investment Phase

Adjusted net operating expenses are projected to rise to roughly $96.9 million in Q1, reflecting higher R&D spending, including force-sensing initiatives and HIFU integration costs. The company framed this expense uptick as a deliberate move to fund growth platforms across data center, industrial, and IoT markets.

Tax Rate Reset Creates EPS Headwind

Management expects an adjusted normalized tax rate of 27% for fiscal 2027, up sharply from 15% in fiscal 2026 as profit mix shifts geographically. While this higher tax burden will pressure reported EPS growth, the company emphasized that underlying operational performance and cash generation remain robust.

Consumer and IoT Systems Face Mixed Demand

High-end consumer net sales in Q4 were $36.6 million, down 13% sequentially but up 3% year over year, signaling continued volatility in consumer electronics demand. IoT Systems & Connectivity revenue was $89.9 million, down 3% year over year and up 2% sequentially, with management pointing to project timing and lumpiness as key drivers.

Cellular Module Divestiture Still in Process

Semtech continues to pursue the divestiture of its cellular module business and indicated that buyer interest and due diligence activity are strong. However, the transaction has not yet closed and timing remains uncertain, leaving some strategic and financial benefits from this move still ahead of investors.

Multiple Concurrent Ramps Elevate Execution Risk

The company is simultaneously ramping CopperEdge ACC, 1.6T FiberEdge solutions, HIFU-based lasers, and expanded LoRa+ deployments, which collectively offer substantial growth potential. Management expressed confidence in its ability to manage these ramps but acknowledged that the complexity increases operational risk over the near term.

Forward Guidance Emphasizes Growth and Investment

For Q1 fiscal 2027, Semtech guided net sales to $283 million plus or minus $5 million, implying roughly 13% year-over-year growth at the midpoint, with data center revenue expected to grow about 12% sequentially. The company forecasts an adjusted gross margin of 52.8%, an adjusted operating margin near 18.6%, EBITDA margin around 21%, and adjusted EPS of $0.45, while reiterating expectations for data center revenue to grow more than 50% for the full year.

Semtech’s earnings call painted a picture of a company in a strong upcycle, driven by record data center sales, LoRa growth, and improving margins and cash flows. While higher taxes, capacity constraints, and execution around multiple ramps pose near-term challenges, management’s guidance and strategy suggest that structural growth drivers remain firmly in place for investors watching the stock.