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Korea's bourse operator KRX activated a buy-side sidecar for the KOSPI on Tuesday, November 10, 2026, as the benchmark index rose sharply, suspending program trading for KOSPI-listed shares, Yonhap and Korea Times report. The trigger occurred around 9:06 a.m. when the KOSPI 200 futures index jumped 44.78 points (5.76%) to 821.04, according to Yonhap's Japanese-language service. Similar buy-side sidecars were also activated on October 21, 27, and 28, 2026, per Yonhap and Korea Times reports. Korean media coverage is factual and brief, focusing on the market mechanism rather than public reaction; no blogs or café posts were supplied.