Chipmakers and other high-flying stocks slide as AI trade wobbles

July 17 (Reuters) – A rotation out of the biggest winners of the recent rally gathered momentum this week, sending chip stocks toward their steepest weekly decline in more than a year and sparking fresh concerns about the sustainability of the AI-driven surge. The ?jitters in semiconductor stocks were felt from Seoul to Europe as investors pulled back from AI-exposed stocks that ?had powered portfolio returns through much of this year. Sign up here. The Philadelphia SE Semiconductor Index (.SOX), opens new tab is down 11% this week, which would mark its largest one-week fall since March 2025, if current…