What Changed For Intel Stock, And What Did Not?

Intel (INTC) stock rose 12.1% on September 21, 2026. A $10,000 holding at the prior close was worth about $11,210 when that day ended. In the days before, reports said SK Hynix was in talks with Intel about making memory chips in the United States. That news was public before September 21, which means it cannot explain the jump. So why did Intel stock jump that day.