July 21, 2026, (Inside AI) — British semiconductor wafer manufacturer IQE has raised its full-year revenue growth forecast, citing stronger-than-expected first-half trading propelled by escalating demand for its compound semiconductor products in AI infrastructure and data centres.
The Cardiff-based company, a critical supplier of advanced epitaxial wafers, now sees revenue growth exceeding prior guidance. The announcement, made on Tuesday, signals that the AI-driven buildout of computing capacity continues to ripple through the supply chain, benefiting specialized materials providers.
IQE’s wafers, made from materials like gallium arsenide and indium phosphide, are essential for high-speed optical transceivers and 3D sensing components. These parts are increasingly deployed in data centre interconnects and AI processing systems, where speed and power efficiency are paramount.
The company did not specify a new growth figure in its brief trading update, but the revision underscores how the AI boom is lifting firms far beyond GPU makers. While Nvidia and AMD dominate headlines, wafer suppliers like IQE form the hidden backbone of photonics and RF chips that move data inside hyperscale data centres.
Wafer Demand Mirrors AI's Physical Expansion #
IQE’s raised outlook arrives amid a global surge in data centre construction. According to Synergy Research Group, the number of large data centres operated by hyperscalers topped 1,000 in 2025, with another 200 planned. Each facility requires millions of optical links, directly boosting demand for compound semiconductor wafers.
Competitors like II-VI Incorporated (now Coherent) and Sumitomo Electric have also reported strong photonics revenue. However, IQE’s pure-play focus on epitaxy gives it a unique position. The company’s wafers are used by chipmakers such as Lumentum and Broadcom, which then supply transceiver modules to cloud giants.
Analysts at Peel Hunt noted that IQE’s first-half performance likely benefited from inventory restocking after a prolonged downturn in 2023-2024. The smartphone cycle, another key market for IQE’s 3D sensing wafers, also showed signs of recovery, adding a second tailwind.
Yet, risks remain. The wafer industry is notoriously cyclical, and geopolitical tensions could disrupt supply chains. IQE operates facilities in the UK, US, and Taiwan, exposing it to trade friction. The company previously warned about customer concentration, with a few large chipmakers accounting for a significant share of revenue.
Beyond the Hype: What IQE's Forecast Leaves Out #
Notably, IQE’s statement lacked specific numbers, leaving investors to guess the magnitude of the upgrade. This opacity contrasts with detailed guidance from equipment makers like ASML, which recently reported a 36% jump in quarterly bookings driven by AI logic and memory demand.
Dr. Mario Morales, an analyst at IDC, cautions that compound semiconductor growth, while real, is often overstated. “Photonics is growing faster than silicon, but it’s still a fraction of the total semiconductor market,” he said. “The AI narrative is powerful, but wafer suppliers face margin pressure from rising energy and raw material costs.”
IQE’s own history illustrates the volatility. In 2022, the company issued a profit warning after a key customer delayed orders, sending shares tumbling. The current upswing could face similar reversals if hyperscalers adjust their capital expenditure plans.
Looking ahead, IQE is betting on next-generation technologies like GaN-on-Si for power electronics and microLED displays. These markets could diversify its revenue beyond the cyclical photonics and wireless segments. The company recently partnered with a major Asian foundry to qualify its 8-inch GaN wafers, aiming for mass production by 2027.
The raised forecast also raises expectations for IQE’s full-year results, expected in March 2027. Investors will watch whether the AI-driven momentum can offset a potential slowdown in consumer markets. For now, the wafer maker is riding a wave that shows no signs of cresting.