Allegro's Data-Center Growth Outruns Its Next-Quarter Guide

Allegro MicroSystems ended its fiscal second quarter with a sharp change in its sales mix. Revenue rose 29% from a year earlier to $276.9 million, but the fastest growth came outside its traditional automotive business. That distinction matters because the next leg of the company's expansion increasingly depends on data centers and other industrial uses rather than a broad auto rebound.

Industrial and other revenue reached $104.4 million, up about 79% from $58.4 million a year earlier. Automotive revenue increased roughly 11% to $172.5 million from $155.8 million. The industrial segment therefore supplied most of the quarter's incremental sales. Management specifically cited data-center demand, where Allegro's magnetic sensors and power products can benefit from the higher electrical loads created by artificial-intelligence infrastructure.

Profitability improved along with sales. Reported gross margin was 49.2%, operating margin was 12.8%, and diluted earnings were $0.12 a share. On the company's non-GAAP basis, gross margin was 51.5%, operating margin was 20.6%, and diluted earnings were $0.26 a share. Keeping those accounting bases separate is important because the adjusted figures exclude costs that remain part of reported earnings.

The demand indicators were encouraging but are not the same as booked revenue. Allegro said design wins reached their highest level since its initial public offering and increased nearly 40% from a year earlier. Bookings also grew for an eighth consecutive quarter. Design wins can support future sales, but their timing depends on customers moving projects from selection through production.

The technology angle also needs precision. The source highlights Allegro's new products for 800-volt data-center power systems, an architecture intended to move large amounts of electricity more efficiently inside AI facilities. A product aimed at that transition is not evidence that every hyperscaler has adopted it, and record data-center sales at Allegro do not automatically establish revenue for other chipmakers. The company still has to convert individual design selections into volume production.

Management's fiscal third-quarter outlook introduces the main test. The company expects revenue of $278 million to $288 million. The $283 million midpoint would represent about 23% year-over-year growth, still strong but slower than the second quarter's 29%. Allegro also guided to a non-GAAP gross margin of 51.5% to 52.5% and non-GAAP earnings of $0.25 to $0.29 a share.

The changing mix also changes what would count as a disappointment. If industrial growth slows sharply, a steady automotive recovery may not be enough to preserve the recent companywide pace. Conversely, sustained data-center growth would make Allegro less dependent on the timing of automotive production cycles.

After the quarter ended, Allegro voluntarily repaid $25 million of debt. That move reduces financing obligations without changing the operating question investors now face: whether the recent surge in industrial and data-center sales can persist as growth moderates. The next report should show whether the record design-win activity is beginning to convert into production revenue at a pace that can offset a more measured automotive recovery.