Infineon Technologies AG (IFNNY) Stock Price & How to Invest

Infineon Technologies AG designs and manufactures semiconductors used wherever electricity has to be converted, switched or controlled: electric drivetrains, chargers, solar inverters, wind turbines, trains, industrial motors, server power supplies and phone chargers, plus microcontrollers, sensors and security chips. In fiscal 2025 (the year to September 30, 2025) revenue was €14.66 billion, down 2%, with a Segment Result margin of 17.5%. Automotive (ATV) brought in €7.40 billion, or about half of sales, at a €1.53 billion Segment Result. Power & Sensor Systems (PSS), home of the AI server power business, grew 11% to €4.21 billion. Green Industrial Power (GIP) fell 16% to €1.63 billion and Connected Secure Systems (CSS) fell 6% to €1.42 billion. Greater China was the largest region at 38% of revenue, followed by Europe, the Middle East and Africa at 24%, the rest of Asia-Pacific at 17%, the Americas at 12% and Japan at 9%.

The company was carved out of Siemens in 1999 and listed in Frankfurt in 2000. Its memory arm, Qimonda, was separated and went insolvent in 2009, a dispute that Infineon only closed out through a court-approved settlement in fiscal 2025. Since then Infineon has bought its way into new markets, most notably Cypress Semiconductor in 2020 (microcontrollers and connectivity) and Marvell's automotive Ethernet business in August 2025 for about €2.18 billion. On July 1, 2026 it completed a €570 million purchase of ams OSRAM's non-optical analog and mixed-signal sensor portfolio, which carries an annual revenue run rate of roughly €230 million. Main production sites include Dresden in Germany, Villach in Austria and Kulim in Malaysia, where a high-volume silicon carbide module opened in fiscal 2024.

Infineon is headquartered in Neubiberg near Munich, employs about 57,000 people and is run by CEO Jochen Hanebeck, with Sven Schneider as CFO. It is a member of the DAX 40 and EURO STOXX 50, and as of September 30, 2025 no shareholder had notified a stake above 10% of voting rights. In the US, Infineon trades as IFNNY, a Level I ADR quoted on the OTCQX International market, where each ADS represents one ordinary share. Infineon left the NYSE in 2009 and kept the ADR program, so it reports in euros on its own investor site rather than filing 10-Ks with the SEC.

The investment picture changed during fiscal 2026. Revenue hit a record €4.17 billion in the June 2026 quarter, the Segment Result margin rose to 19.1%, and management guided the September quarter to about €4.7 billion at roughly a 23% margin. Full-year revenue guidance is now about €16.3 billion, roughly 11% growth, led by AI data center power supplies. Against that, automotive is growing more slowly than the group because high-voltage electric vehicle demand is subdued, net financial debt was about €5.2 billion at the end of June, and the share price has been volatile: the Frankfurt shares traded near a 52-week high of about €89 in the spring of 2026 and were around €59 in early October.

Infineon's earnings are cyclical, and fiscal 2025 showed how quickly they can fall: revenue dropped 2% and Segment Result fell from €3.1 billion to €2.6 billion as customers cut inventories and factories ran below capacity. Automotive is about half of sales, and management says high-voltage electric vehicle demand remains subdued, so a weak car market can offset gains elsewhere. The AI data center story is concentrated in a small number of hyperscale and server customers, and capacity reservation agreements may not translate fully into revenue if AI capital spending slows or customers switch suppliers. Greater China provided 38% of fiscal 2025 revenue, which exposes the company to Chinese competition in power semiconductors, export controls and tariff disputes. Currency is a recurring headwind: Infineon reports in euros but sells heavily in dollars, and its guidance assumes US$1.15 per euro. The balance sheet carried about €6.8 billion of financial debt and €5.2 billion of net debt at the end of June 2026, after the Marvell and ams OSRAM purchases. The share price has been volatile, falling from near €89 in spring 2026 to around €59 in early October, and it fell on the day of the June-quarter report despite record revenue. For US holders, IFNNY trades over the counter with lower volume than the Frankfurt line (about 345,000 ADS a day on average in fiscal 2025), and its dollar price moves with the euro as well as the shares.

4 analysts publish price targets on IFNNY, averaging $106.50 against a $65.95 price as of October 2026, or +61.5%. The published targets run from $71.00 to $125.00, a moderate spread, and the ratings split 3 buy, 1 hold, 0 sell. A price target is what an analyst published on a date, not a prediction, and sell-side ratings skew positive across the whole market.

Read the full IFNNY forecast and price target for the target table, the recent rating actions by firm, and how the consensus has shifted.

We give no verdict on Infineon Technologies AG. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.

The case for buying. Power supplies for AI data centers. AI servers draw far more power than conventional ones, and each rack needs several conversion stages. The most optimistic published target, $125.00, assumes this works close to its best case.

The case against. Infineon's earnings are cyclical, and fiscal 2025 showed how quickly they can fall: revenue dropped 2% and Segment Result fell from €3.1 billion to €2.6 billion as customers cut inventories and factories ran below capacity. The most pessimistic target, $71.00, is roughly what IFNNY is worth if this bites instead.

Read the full bull and bear case on IFNNY, including what would have to change to break either one. Walnut is not an investment adviser.

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Infineon Technologies AG's investor relations page or your broker.

• Revenue (TTM to June 2026): ~€15.6B
• FY2026 revenue guidance: ~€16.3B (~11% growth)
• Q3 FY2026 Segment Result margin: 19.1% (Q4 guided ~23%)
• Market cap: ~€77B (~$86B; IFNNY ~$66)
• Net financial debt (June 30, 2026): ~€5.2B
• Dividend (FY2025): €0.35 per share (~0.6% yield)

Trailing revenue of about €15.6 billion combines the September 2025 quarter (€3.94 billion) with the first three quarters of fiscal 2026 (€3.66 billion, €3.81 billion and €4.17 billion), so it understates the run rate if the guided €4.7 billion September quarter arrives. Adjusted diluted EPS was €0.44 in the June quarter, up from €0.34 in March, against a share price near €59, which means the valuation depends heavily on margins continuing toward the guided 23%. Adjusted free cash flow guidance is about €1.85 billion for fiscal 2026, while reported free cash flow of about €0.9 billion is lower because it includes the ams OSRAM purchase and frontend building investment. Full-year results are due on November 10, 2026.

Other names that sit close to IFNNY: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.

There are three common ways to get IFNNY exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic portfolio, so IFNNY sits alongside other stocks that express the same thesis.

Walnut takes the portfolio route. Describe a thesis where IFNNY fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.

IFNNY gives US investors one-for-one exposure to Infineon, a large, cyclical power-chip maker whose near-term story rests on AI data center power supplies outgrowing a sluggish auto market. The stock has swung widely in 2026, and the November 10 full-year report is the next test of the margin recovery management has guided to.

Whether IFNNY is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is IFNNY a buy or a sell?, and where the stock could go from here in the IFNNY stock forecast.

For income investors, whether IFNNY pays a dividend and how the payout looks is covered in does IFNNY pay a dividend? And to weigh IFNNY against a peer, read the full side-by-side comparisons: IFNNY vs STM and IFNNY vs ON.