Infineon Shares Extend Slide as Jefferies iPhone Warning Adds to Sector-Wide Gloom
Published on 07/28/2026 at 15:31 | Redaktion boerse-global.de
The sell-off in Infineon shares shows no signs of letting up, with the stock now nursing a 21% loss over the past month after a fresh analyst warning sent the price tumbling another 7.7% on Tuesday to €57.87. The latest leg lower was triggered by a Jefferies report casting doubt on Apple’s production ramp for the iPhone 18, a key customer for Infineon’s power-management chips and sensors.
The warning from Jefferies analyst Janardan Menon comes at a particularly delicate moment. Infineon management raised its full-year guidance back in May, setting the bar high for the third-quarter earnings report due August 5. Any disruption to Apple’s supply chain — a major revenue driver — could put that upgraded outlook at risk, and the market is clearly pricing in that possibility.
But the Apple jitters are only part of the story. The broader semiconductor sector has been under severe pressure for weeks, with Infineon caught in a downdraft that has dragged down peers across Europe and the US. STMicroelectronics set a cautious tone for the third quarter when it reported on July 23, fueling concerns about an uneven recovery in key end markets. Texas Instruments has also disappointed, while NXP Semiconductors reports after the Nasdaq close on Tuesday, giving investors another potential catalyst for further selling.
Should investors sell immediately? Or is it worth buying Infineon?
The cumulative effect has been brutal. From its all-time high on June 2, 2026, Infineon shares have surrendered significant ground, briefly slipping below key moving averages during the rout. The 14-day relative strength index has dropped to 32.1, flirting with the 30 threshold that technical analysts consider oversold. That has drawn in some opportunistic buyers, but the bounces have been short-lived — the attempted stabilization on Monday fizzled as the stock fell another 1.54%.
Despite the recent carnage, the year-to-date picture remains remarkably strong. Infineon shares have still gained 66.18% since January, buoyed by structural demand in electric vehicles, industrial automation, and data centers. That diversified exposure has made the company more resilient than pure-play memory chip makers, though it has not been enough to insulate it from the current sector-wide rotation.
For now, the stock is caught between two forces: the immediate headline risk from Apple supply chain news and the broader sentiment in the chip industry. Tuesday’s NXP results will offer an early read on automotive chip demand, while Infineon’s own August 5 earnings report will be the real test. All eyes will be on whether management holds firm on its full-year revenue target of over €16 billion — and whether the recent sell-off has been a buying opportunity or a warning of worse to come.
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