What Happened to AXT Inc.?

AXT Inc. has navigated a complex and volatile market, particularly in the compound semiconductor industry, culminating in a significant turnaround in 2026. The company specializes in Indium Phosphide (InP), Gallium Arsenide (GaAs), and Germanium (Ge) substrates, which are critical for high-performance semiconductor and optoelectronic devices where traditional silicon cannot meet performance requirements, such as 5G infrastructure, data center connectivity, and AI applications.

A key turning point for AXT came with the escalating demand for InP substrates, particularly driven by the massive build-out of AI infrastructure and data center optical connectivity. InP is a crucial component in high-speed optical data transmission, including electro-absorption modulated lasers (EMLs) and silicon photonics-based optical transceivers. This demand has been a primary driver for AXT's recent growth, with the company reporting its highest quarterly InP revenue to date in Q2 2026.

However, AXT's operations, heavily reliant on its manufacturing facilities in China through its subsidiary Tongmei, have been significantly impacted by geopolitical factors. China's export control regulations, which took effect on February 4, 2025, require permits for overseas shipment of InP substrates. While AXT received its first InP export permits in June 2025, the company has faced ongoing permitting delays stretching into 2026, which it has called its "most significant challenge." These restrictions have particularly affected its North American revenue share, which dropped from 8% in 2024 to approximately 2% in 2025.

Despite these challenges, AXT has demonstrated resilience. In Q1 2026, the company reported revenue of $26.9 million, exceeding forecasts as export permits came in slightly better than guidance. Indium Phosphide revenue surged, primarily from data center applications, and revenue from China's InP-based laser market more than doubled, benefiting from domestic shipments not requiring export permits. The momentum continued into Q2 2026, with AXT announcing strong financial results on July 30, 2026. Revenue for the second quarter reached $47.6 million, a 160% increase year-over-year, and the company swung to a GAAP net income of $11.1 million, or $0.17 diluted income per share, compared to a net loss in the prior year. This performance significantly exceeded analyst expectations.

As of July 30, 2026, AXT is in a period of strong growth and strategic expansion. The company announced a long-term supply and capacity reservation agreement with Lumentum Operations, LLC for InP wafer substrates, securing a minimum annual commitment through December 31, 2031, and receiving substantial deposits. AXT is also actively expanding its InP capacity, planning to double it in 2026 from Q4 2025 levels to meet the record order backlog. While the stock has seen an exceptional run, returning approximately 1862.3% over the last year, some analysts suggest its current valuation appears expensive, pricing in significant optimism. The company also recently amended its bylaws to lower the shareholder meeting quorum, potentially easing administrative efficiency.