KRX activates buy-side sidecar for KOSPI on sharp rise

What happened: The Korea Exchange activated a buy-side sidecar for the KOSPI as the index rose sharply, suspending program trading for five minutes at 9:53 a.m. Key numbers: KOSPI opened 2.23 percent higher and added 255.92 points, or 4.54 percent, to 5,894.26 as of 9:55 a.m. Why it matters: The rally came as strong AI-driven semiconductor earnings lifted investor sentiment ahead of the Federal Reserve's interest rate decision.

KRX activated a buy-side sidecar for KOSPI following a sharp rise.

KRX activated a buy-side sidecar for KOSPI following a sharp rise. — impact context not separately stored; see What changed.