The Kospi and foreign exchange rate are displayed on a screen at Hana Bank's trading room in Seoul on June 5. [YONHAP]

The Korea Exchange issued a sell-side sidecar — a temporary halt in program trading — on the bourse Kospi after stocks opened sharply lower on Friday morning and a selling spree began.

The benchmark Kospi lost 316.21 points, or 3.66 percent, to 8,323.2 at the opening bell. The fall came as investors took a breather following a recent rally in tech shares amid uncertainty over the U.S.-Iran peace deal.

Related Article

The sell-side sidecar was triggered just minutes after the market opened and marked the 10th just this year alone.