Soitec is trading at €110.65, down 11.30% on November 4, 2026, following a reported Morgan Stanley downgrade and price-target cut. - Morgan Stanley reportedly lowered its rating from “overweight” to “market weight” and cut its price target from €200 to €140. - UBS upgraded Soitec the same day, leaving analyst views mixed. - Chip stocks were pressured by concerns tighter data-center rules could slow AI infrastructure investment; no company announcement was identified as a cause of Soitec’s decline.