Allegro Microsystems Signals Strong Momentum in Earnings

Allegro Microsystems, Inc. ((ALGM)) has held its Q4 earnings call. Read on for the main highlights of the call.

Allegro Microsystems’ latest earnings call struck an upbeat tone as management highlighted broad-based growth, expanding margins, and record free cash flow despite pockets of cost pressure. Executives acknowledged commodity and logistics headwinds and some seasonality in China, yet stressed that rising design wins and a multiyear-high backlog underpin confidence in the durability of the company’s momentum.

Consistent Revenue and EPS Growth

Allegro delivered its fifth consecutive quarter of sales growth, with Q4 revenue reaching $243 million and non-GAAP EPS climbing to $0.17, nearly triple last year’s level. For fiscal 2026, sales rose 23% year over year to $890 million, while non-GAAP EPS more than doubled to $0.54, underscoring improving scale and profitability.

Automotive Outperformance and Content Expansion

Automotive remained Allegro’s growth engine, generating $629 million, or 71% of fiscal 2026 revenue, up 17% from the prior year. Focused automotive segments such as xEV and ADAS surged 30% to $349 million and now represent 55% of auto sales, helped by content gains that can reach two to three times in certain steer-by-wire applications.

Strong Industrial and Data Center Momentum

Outside the auto sector, industrial and other sales climbed 38% year over year, reflecting healthy diversification. Data center revenue set a Q4 record, rising to 14% of total sales from 10% in Q3, and more than quadrupled for the full year as demand for Allegro’s power and sensing solutions accelerated.

Product and Technology Milestones

The company underscored several technology wins, including an industry-first 10 megahertz TMR current sensor that earned EDN’s 2025 Sensor Product of the Year. Allegro also launched an ASIL D passive TMR angle sensor and its first isolated silicon carbide gate driver, with TMR-based offerings representing about 30% of sensor releases and reinforcing its leadership in high-bandwidth, high-accuracy sensing.

Design Wins and Backlog Strength

Design win activity was robust, with fiscal 2026 wins rising more than 30% year over year, led by focused automotive and data center programs. Management noted that the company exited the year with backlog at a multiyear high, enhancing visibility and supporting confidence in future revenue streams.

Margin Expansion and Profitability

Profitability improved meaningfully, as Q4 gross margin reached 50%, up from 45.6% a year earlier, and operating margin expanded 660 basis points to 15.6%. For the full year, gross margin increased 140 basis points to 49.4%, while adjusted EBITDA reached 19.1%, reflecting both operating leverage and disciplined expense management.

Strong Free Cash Flow and Deleveraging

Allegro generated record free cash flow of $125 million in fiscal 2026, ending Q4 with $175 million in cash and producing $36 million of operating cash in the quarter against $17 million of capital spending. The company also voluntarily repaid $60 million of debt, reducing total borrowings to $285 million and net debt to $116 million, strengthening the balance sheet.

Commodity and Cost Headwinds

Management flagged rising input and logistics costs, noting that higher gold prices alone created roughly a 200 basis point headwind to gross margin for the year. Fuel and freight have also intensified cost pressure, prompting Allegro to plan selective price increases beginning at the end of Q1 to offset part of these external headwinds.

Price Negotiation Seasonality and Drop-Through Variability

The company explained that annual customer pricing negotiations weighed on Q4 profitability, producing a drop-through rate in the low 50% range. Looking ahead, Allegro expects about 70% drop-through embedded in its Q1 guidance and continues to target a long-run variable contribution margin of roughly 60% to 65%.

Revenue Concentration Risk

Despite its progress in industrial and data center markets, Allegro remains heavily exposed to the auto cycle, with automotive accounting for 71% of fiscal 2026 revenue. Management acknowledged that this concentration could become a risk if automotive demand weakens unexpectedly, reinforcing the strategic importance of expanding non-auto end markets.

Margin Target Gap

The company’s long-term goal is to push gross margins above 55%, but fiscal 2026 closed at 49.4%, leaving work to do. Management outlined a roadmap centered on operating leverage, converting certain processes from gold to copper, and driving factory efficiencies to steadily close the gap over time.

Timing of New Product Revenue

While highlighting strong design traction for its isolated gate drivers in data center power applications, Allegro cautioned that meaningful revenue contributions from these products are still about 18 to 24 months away. That timing means near-term financial impact will be modest even as the company continues to invest in these strategic platforms.

Sequential Seasonality and Regional Impacts

Auto sales were essentially flat sequentially at $164 million in Q4, which management attributed partly to expected seasonality around the Chinese New Year. Operating expenses rose by $5 million quarter over quarter, driven largely by payroll tax resets and higher incentive compensation, temporarily tempering margin progression.

Working Capital and Inventory Days

Inventory days remained elevated at 128, though this was an improvement from 133 days in the prior quarter and suggests gradual progress in working-capital management. Days sales outstanding also improved, falling to 35 from 40 in Q3, which helps support cash conversion even as inventory levels remain a watch point.

Forward-Looking Guidance

For the first quarter of fiscal 2027, Allegro guided non-GAAP sales between $245 million and $255 million, implying roughly 23% growth at the midpoint, with gross margins of 50% to 51% and operating expenses around $80 million. Management expects non-GAAP EPS between $0.19 and $0.23, supported by stronger data center demand and a modest uptick in auto, while continuing to fund R&D and sales initiatives through efficiency gains and internal reallocations.

Allegro’s earnings call painted a picture of a company balancing strong growth and expanding profitability against manageable cost and concentration risks. With rising design wins, a robust backlog, and clear margin-improvement initiatives, investors heard a story of sustained momentum, though the pace will depend on auto demand, execution on new products, and success in managing input-cost volatility.