Infineon’s GaN Victory Strengthens AI Bet as Overbought Rally Pauses Ahead of Q3 Earnings

Infineon wins US patent bans on rival Innoscience's GaN chips, boosting its AI data center power business. But with shares up 70% YTD and RSI overbought, valuation risks loom ahead of Q3 earnings.

Infineon has emerged from a US patent dispute with a clear competitive edge, just as the stock’s blistering rally shows signs of fatigue. The US International Trade Commission (ITC) has issued final import and sales bans on certain gallium-nitride (GaN) products made by rival Innoscience, handing the German chipmaker a decisive legal win in a technology deemed critical for next-generation power electronics. With roughly 450 GaN-related patent families in its portfolio, Infineon now enjoys exclusive access to a key growth market in the US just as demand for energy-efficient chips surges.

That demand is being fuelled largely by artificial intelligence. The company’s power-supply solutions for AI data centres are emerging as a major earnings driver, with management guiding for around €1.5 billion in revenue from that segment alone this year and forecasting a further “massive” jump by 2027. In the second quarter, group revenue reached €3.81 billion, and the full-year outlook has been revised upward to more than €16 billion, with free cash flow expected near €1.7 billion. The targeted segment-result margin stands at roughly 20%.

To capitalise on this momentum, Infineon plans a structural overhaul starting in the fourth quarter of its fiscal 2026. The current organisation will be replaced by three specialised units: Automotive, Power Systems and Edge Systems. Power Systems, which already notches revenue growth of a quarter and margins above 20%, is set to contribute nearly a third of group sales in the medium term. The auto division, by contrast, has seen its operating margin slip to around 18%, partly owing to heavy exposure to the Chinese market, though management remains upbeat.

Yet on the trading floor, the narrative has shifted to valuation risk. Shares closed Friday at €64.96, trimming nearly 4% as profit-taking set in after the stock hit a new year-high the previous session. The year-to-date gain still stands at almost 70%. Daniel Saurenz of Feingold Research describes the situation as “massively overheated,” noting the share price now sits roughly 64% above its 200-day moving average. The Relative Strength Index (RSI) at 70.7 – some analysts put it near 71 – signals a clearly overbought condition, and chart support is not seen until around €48.

Insiders are also cashing in. Management board member Peter Gruber sold a block of shares in mid-May at €61.76, taking advantage of the elevated price level. While investment banks such as JPMorgan and Goldman Sachs maintain buy recommendations, the average analyst price target of €66.88 leaves little upside from current levels.

All eyes now turn to the third-quarter earnings report due on 5 August. The board expects revenue of roughly €4.1 billion. If the subsequent outlook disappoints, the gap between the stock’s lofty valuation and its nearest technical support leaves ample room for a correction. The recent GaN win adds a layer of fundamental strength, but the chart suggests investors may need to wait for a healthier entry point.