A single analyst call from Marvell Technology sent Aixtron shares soaring to their highest level in more than a decade — yet the euphoria masks a first-quarter loss that highlights just how far operational reality trails market expectations. The German equipment maker closed the week at 58.70 euros, an 8.7% gain on the week and a full 33% above its 50-day moving average, after touching an intraday high of 59.10 euros, a level not seen since January 2001.
The catalyst was unmistakable: Marvell confirmed that the cycle for optical AI interconnect solutions is accelerating faster than anticipated. Aixtron’s MOCVD systems — notably the new G10-AsP platform — form the manufacturing backbone for the optical components powering high-speed data transmission inside AI data centers. The market seized on the confirmation, pushing the stock up sharply. But beneath the rally lies a more complicated picture.
Aixtron’s first-quarter revenue slumped 47% year-on-year to 59.4 million euros, dragging the company into a net loss at the operating line. Earnings before interest and taxes hit minus 22.3 million euros, compared with a modest profit of 3.3 million a year earlier. Gross margins eroded from 30% to 18%, crimped by low volumes and one-off personnel charges in the mid-single-digit millions. Management attributed the weakness to the typical lumpy delivery pattern, with bulk shipments expected to ramp in the second half of the year.
That thesis gains some support from the order book. The backlog stood at 359.1 million euros at the end of March, up sharply from 257.8 million at the close of 2025. Customers, however, are running up against capacity constraints: Aixtron noted that limited free production space at clients is pushing some larger orders into 2027. For the second quarter, the company guided for roughly 110 million euros in sales, nearly double the first-quarter figure.
Should investors sell immediately? Or is it worth buying Aixtron?
The structural shift in Aixtron’s product mix is accelerating. Optoelectronics systems — deployed in data centers, telecommunications, and 3D-sensing lasers — accounted for 52% of equipment revenue in the first quarter, up from just 10% in the same period last year. The company expects that segment to more than double its sales contribution in full-year 2026. In parallel, the gallium-nitride (GaN) business is gaining traction: Aixtron delivered multiple production tools for GaN power electronics to Renesas Electronics, which is pushing the technology into e-mobility and AI data centers. Management sees GaN as a growth driver for the second half. Silicon carbide, by contrast, remains in a trough, with recovery not expected before the second half of 2026 due to lingering overcapacity.
Financially, Aixtron enters this inflection point on solid footing. Cash and short-term investments stood at 272.7 million euros at quarter-end, with no bank debt. In April, the company placed a 450 million euro convertible bond due 2031, earmarked for organic growth and potential acquisitions. Operating cash flow improved to 53.6 million euros from 35.1 million a year earlier. The equity ratio sat at 85%.
Yet analysts remain notably unconvinced. Deutsche Bank Research reaffirmed a “Hold” rating on May 29, focusing on the pace of profitability recovery. Berenberg, DZ Bank, and Barclays all maintain similar “Hold” recommendations with price targets ranging from 39 to 45 euros — far below the current trading level. The skepticism is grounded in valuation: at a 2027 price-to-earnings ratio of roughly 43 and an EV/EBIT multiple of about 30, the stock trades more than three standard deviations above its long-term revenue average. Such a premium demands sustained, rapidly accelerating growth that has yet to materialize in the financial statements.
The next proving ground arrives on July 30, when Aixtron releases its half-year report. The company’s full-year guidance calls for revenue of around 560 million euros, an EBIT margin of 17% to 20%, and a gross margin of roughly 42%. For those who bought the stock at the peak of last week’s rally, only a clean set of numbers — especially on delivery speeds and operating leverage — will justify the price tag.
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