South Korea’s KOSPI Jumps 6.6% as Samsung, SK Hynix Rally
Samsung Electronics rose 9.5%, while SK Hynix gained 10%, both outpacing the index.

South Korean stocks surged on Oct. 28, with the KOSPI up 6.6% as Samsung Electronics shares rose 9.5% and SK Hynix climbed 10%, making the session a major Asia market move relevant to global risk sentiment.
The company share gains outpaced the index advance. Samsung’s increase was 2.9 percentage points above the KOSPI’s move, while SK Hynix’s gain exceeded it by 3.4 points.
Among the three percentage changes, SK Hynix led with a 10% rise, ahead of Samsung at 9.5% and the KOSPI at 6.6%. The gap between the two company moves was half a percentage point.
Those comparisons show both the overall direction of Korean stocks and how the two named shares moved against the index. The KOSPI’s 6.6% jump supplies the broad-market measure; the larger changes in Samsung and SK Hynix add individual-company detail to the same move.
The rally gives readers tracking global risk sentiment a concrete Asia equity development: gains across the index and both named stocks.