Samsung shares fall after detailed third-quarter results, pulling Kospi lower

Samsung Electronics shares fell after the release of its detailed third-quarter results, and the Kospi turned lower during the session. SK Hynix shares moved differently around the companies’ earnings, breaking from a pattern in which the two stocks had often moved in the same direction this year.

A split between memory-chip stocks

Samsung and SK Hynix both make memory chips, but their contrasting share moves show that investors did not treat their earnings announcements alike. The reports establish the direction of the market moves; they do not identify which details in Samsung’s results drove the sell-off.

Earlier figures are a separate snapshot

Samsung Electronics’ regulatory filing shows a revenue change from a year earlier of +130% (Q2 2025 → Q2 2026) and an operating profit change of +1,813.84% (Q2 2025 → Q2 2026). Its operating margin was 52.18% (Q2 2026). These figures cover an earlier filed period, not the newly released third-quarter results, so they cannot by themselves explain the market reaction.

By the Numbers