South Korea’s Kospi stock market extended its volatile streak for a third consecutive session on Wednesday, June 11, 2026, with chip stocks resuming their slide. The benchmark Kospi fell 4.5%, erasing much of the previous day’s 8.2% rally, after an 8.3% plunge on Monday that triggered a 20-minute trading halt, according to livemint.com.
The market’s violent swings reflect intense turbulence in artificial intelligence-linked stocks, especially major players Samsung Electronics Co. and SK Hynix Inc. The sharp fluctuations have repeatedly activated market safeguards, underscoring the fragility of investor sentiment amid rapid shifts in the sector. The back-and-forth moves highlight the concentrated nature of the Kospi, which is heavily influenced by a few large chipmakers.
This volatility comes amid growing uncertainty in the semiconductor industry, a key driver of South Korea’s economy. The swings in chip stocks mirror broader concerns about demand and supply chain disruptions affecting global technology markets. The Kospi’s wild ride is notable given its status as one of Asia’s most concentrated equity markets, where a handful of companies can significantly sway overall performance.
The Kospi’s trading halt on Monday was the first in several years, reflecting the severity of the selloff. Market participants will closely monitor upcoming earnings reports from Samsung Electronics and SK Hynix, which are scheduled for later this month, to gauge whether the sector’s turbulence will persist.