Korea's main bourse operator on Monday issued a sell-side sidecar for the benchmark Korea Composite Stock Price Index (KOSPI), temporarily halting trading after a sharp plunge. Program trading for the KOSPI was suspended for five minutes at 9:18 a.m. according to the Korea Exchange (KRX). A sell-side sidecar is triggered when the KOSPI 200 Futures index dips 5 percent or more for at least one minute. It marks the sixth time for the bourse operator to issue a sell-side sidecar this year.