active·R&D and entrepreneurshipSamsung and SK hynix memory chip stocks drop to critical 10-day level09 Sept 2026·1 event·1 sourceFollowHow events unfoldedFrom the beginning to today09/09/2026, 16:13Samsung and SK hynix memory chip stocks drop to critical 10-day level1 source →1 of 1 eventsStoryline coverage1 source · 1/7