AXT's Indium Phosphide Bet Pays Off as Cloud Giants Scramble for Optical Components
Published on 08/03/2026 at 17:42 | Redaktion boerse-global.de
The race to build out artificial intelligence infrastructure has exposed a bottleneck that few investors saw coming: the humble semiconductor substrate. While much of the industry's attention has been fixated on memory chip shortages, AXT has quietly positioned itself at the center of a supply crunch in indium phosphide (InP), the material underpinning the laser optics that connect AI data centers.
The market's response has been emphatic. Shares in the California-based compound semiconductor specialist have surged 317.12 percent since the start of the year, with the stock climbing another 15.38 percent to 60.30 euros on Monday. That rally has been fueled by a combination of blockbuster earnings, a landmark supply agreement, and growing alarm over a material shortage that some industry executives believe could eclipse the memory chip crunch.
A Return to Profitability
The numbers tell a striking turnaround story. AXT reported record second-quarter revenue of 47.6 million US dollars, a 164 percent jump year over year. The star performer was the company's InP substrate business, which generated 30.7 million dollars in revenue — an all-time high for the company.
The bottom line has transformed just as dramatically. After posting an adjusted loss per share in the first quarter, AXT swung to a non-GAAP profit of 0.19 dollars per share in the second quarter, crushing analyst consensus estimates of 0.07 dollars. The non-GAAP gross margin vaulted from 29.9 percent in the prior quarter to 45.0 percent, a staggering improvement from the 8.2 percent recorded a year earlier. Adjusted net income came in at 11.9 million dollars, marking the company's return to profitability after a weak patch in 2024.
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The order book reflects the intensity of demand. Backlog has swelled to more than 100 million dollars, with cloud providers' appetite for ultra-fast optical modules for data centers outstripping available supply. Industry estimates suggest deliveries are currently running more than 30 percent behind global demand — a gap that prompted warnings at the RAISE summit in Paris this week about a looming supply crisis.
Locking In Supply
The most significant development for AXT's long-term trajectory came with the announcement of a five-year supply agreement with Lumentum, the laser specialist. Under the deal, AXT will deliver InP substrates to Lumentum through 2031, with the customer committing to total payments of 87 million dollars. The sum will be paid in two tranches of 43.5 million dollars each — the first due within 30 business days, the second scheduled for 2028.
The prepayment structure signals just how concerned downstream customers have become about securing access to materials. Lumentum CEO Michael Hurlston has warned that the indium phosphide shortage could prove even more severe than the one gripping the memory chip market. AXT has already locked in similar advance-payment arrangements with Casela and Coherent, underscoring the leverage that substrate suppliers now hold in negotiations.
Scaling for the AI Era
Management is moving quickly to convert this demand into capacity. The company plans to boost quarterly InP production capacity to roughly 60 million dollars by the fourth quarter of 2026, with a target of 130 million dollars per quarter by the end of 2027. That expansion is designed to ride the multi-year buildout of AI infrastructure that shows no signs of slowing.
The balance sheet provides ample firepower for these investments. AXT holds approximately 749 million dollars in liquid assets, giving it the flexibility to fund the capacity ramp without straining its finances.
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For the current quarter, management has guided to revenue of around 66 million dollars and adjusted earnings per share between 0.30 and 0.32 dollars. The outlook comes with a caveat, however: the company's ability to hit those numbers depends on maintaining stable export licenses, a factor that remains a persistent overhang given the regulatory environment.
Risks Beneath the Surface
Despite the euphoria, the stock carries notable vulnerabilities. Even after Monday's jump, shares trade roughly 53 percent below their 52-week high from May, a reminder of how volatile the name has been. The company's exposure to China — which accounts for more than 50 percent of revenue — and its reliance on export approvals for its Beijing-based subsidiary Tongmei remain key risk factors that could disrupt the growth narrative.
Analysts are nonetheless warming to the story. Needham upgraded the stock to "Buy" with a price target of 90 dollars, arguing that AXT deserves a premium valuation given the multi-year demand cycle unfolding in AI infrastructure. The company is scheduled to release its next detailed quarterly results in October 2026, which will offer investors a clearer read on whether the capacity expansion is keeping pace with the insatiable appetite for optical connectivity.
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