From left, the closing prices for SK hynix, KOSPI and Samsung Electronics are displayed on an electronic board in the Hana Bank dealing room in Seoul, Friday.
The benchmark index ended at 8,411.21, down 519.09 points, or 5.81 percent, from the previous session, while Samsung Electronics and SK hynix fell 5.29 percent and 8.36 percent, respectively.
Yonhap KOSPI tumbled nearly 6 percent on Friday, as the index came under pressure from profit-taking after recent gains, in addition to a sharp overnight decline in U.S. equities.
The benchmark index opened down 117.12 points, or 1.31 percent, at 8,813.18 and swung between gains and losses before closing at 8,411.21, down 519.09 points, or 5.81 percent, from the previous session.
Heavy losses in large-cap technology stocks amplified the decline, with Samsung Electronics and SK hynix falling 5.29 percent and 8.36 percent, respectively.
