South Korea’s benchmark index froze for 20 minutes as a chip selloff rattled Asia
For 20 minutes today, one of Asia’s busiest stock markets simply stopped. South Korea’s Kospi had fallen so fast and so far that the Korea Exchange halted trading on the benchmark for 20 minutes after it stayed more than 8% below the previous session’s close for one minute. By the time the dust began to settle, the freefall had spread across the region, and a week that opened with quiet optimism closed in something close to fear.
A market hits the brakes
The circuit breaker kicked in at 12:10 p.m. local time, suspending trading on the Kospi market after the index plunged more than 8% and held there for a full minute. At the moment of the halt, the Kospi had shed 731.97 points to land at 8,198.33, an 8.19% drop, with trading in shares, stock index futures and options all going dark. Earlier in the session, the exchange had already imposed a sell-side sidecar after Kospi 200 futures slid more than 5%, an early warning that the selling was gathering force. By 2:42 p.m., the index had clawed back some ground and traded down 6.71% at 8,336.6, still a punishing day by any measure.
Why investors are acting based on South Korea’s KOSPI Index.
If you invest in AI, semiconductors, or large-cap technology, this index deserves a place on your watchlist.
Here’s why.
The KOSPI is home to companies like Samsung Electronics and SK Hynix – two of the most… pic.twitter.com/UnP9LPDcad
— Prof (@TheProfInvestor) June 26, 2026
The 3 forces driving the selloff
Several pressures piled on at once. (1) Apple set off the chain reaction overnight by announcing price increases on some laptops, tablets and other products, blaming rising chip costs, and the news battered Apple and other Magnificent Seven names on Wall Street before Asia opened in their shadow. (2) Memory chip worries did the rest, as the sell-off was driven by concerns over weakening demand for memory chips, along with profit-taking after the Kospi’s sharp rebound over the prior two trading sessions.
(3) Big money led the exit, as foreign and institutional investors sold a net 3.11 trillion won and 732 billion won respectively, while individuals bought a net 3.77 trillion won, or about $2.44 billion. The country’s two chip giants took the brunt, with Samsung Electronics and SK hynix at one point tumbling more than 9%.
Analysts at Kiwoom Securities suggested the rout had less to do with broken fundamentals than with how heavily the Korean market leans on a single sector, leaving fund flows to whip the index around when sentiment turns.
Asia feels the tremor
The damage was not confined to Seoul. Japan’s Nikkei 225 dropped sharply, while the Shanghai Composite eased 1.82% and the Shenzhen Composite fell 2.88%. Hong Kong’s Hang Seng slipped 1.60%, and Australia’s S&P/ASX 200 defied the gloom by edging up 0.19%. In currencies, the dollar drifted 0.10% lower against the yen. Adding to the unease, reports surfaced that OpenAI may push its IPO to 2027, denting hopes across the tech pipeline.
Crypto caught in the crossfire
The turmoil bled into digital assets. More than $1 billion in crypto positions were liquidated over 24 hours, with bullish bets accounting for $842 million and roughly 148,500 traders wiped out, according to CoinGlass. Bitcoin led the pain with $489 million in liquidations, followed by ether at $295 million. The token slipped to a 24-hour low near $58,188 before steadying around $59,750, down about 2.8% on the day and nearly 20% on the month.
What to watch next
A wave of quarter-end options contracts expires today, a calendar quirk that can magnify swings in either direction as traders unwind or roll positions. How Bitcoin and the broader market exit the session is likely to set the tone heading into July. For jittery investors, the question now is whether buyers step back in or the selling finds another leg.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. The author and publication are not registered investment advisors and do not provide personalized investment recommendations.