Carrefour is trading 4.41% lower at $95.11, with no clear company-specific catalyst identified for the November 2 decline. - Reports that day said a suspected cyberattack affected refrigeration equipment at 15 Carrefour Belgium stores, but coverage did not connect the incident to the share move. - Carrefour’s October 20 earnings outlook reduction is earlier context, not a confirmed explanation. Supplied market figures showed no major-index move large enough to explain the drop.