Infineon Technologies is trading at €50.83, down 4.26%, amid a broad semiconductor selloff. - The sector ETF SOXX is down 4.20% as investors question returns on AI infrastructure spending; Lam Research’s weaker outlook added pressure to chip stocks. - October 22 coverage described Infineon’s move as reflecting wider chip-sector sentiment rather than company-specific news. - A prior-day NVIDIA collaboration announcement was positive but does not explain the decline.