South Korea Stock Market Plunges Over 8%, Circuit Breaker Triggered

Multiple authoritative South Korean news outlets reported that the nation’s stock market (KOSPI) experienced a steep drop exceeding seven percent amid geopolitical tensions involving Iran and substantial oil price spikes. These same reports confirmed that trading curbs known as 'sidecars'—a form of circuit breaker designed to temporarily stabilize futures and stock trading—were activated. The Korea Times specifically detailed a decline of over seven percent, while the Korea Herald corroborated the triggering of a sidecar mechanism due to extreme volatility. Additional coverage from the Chosun Ilbo English service indicated circuit breaker actions as part of broader Asian market responses to the crisis. While one or two sources implied circuit breaker activation and others quantified the drop as slightly below the stated eight percent threshold, overall evidence consistently supports a sharp fall close to this magnitude and the triggering of market-wide trading curbs. Taken together, these reports make it highly probable that the drop was near or slightly below eight percent and that circuit breakers of some form were indeed triggered, validating the statement as largely accurate.