Shares of major Asian semiconductor companies have sharply declined following a sell-off in the U.S. market and new regulatory measures in South Korea. On Friday, Japan's Kioxia saw its stock plummet 16%, marking a significant downturn from its previous highs. The memory chipmaker, which had surged 631% in the first half of the year, has since lost about half its value, erasing approximately 30 trillion yen, or $185 billion, from its market capitalization.
Market Reaction
The sell-off extended to Taiwan Semiconductor Manufacturing Co. (TSMC), which fell over 5% despite reporting a 77% increase in second-quarter profits. South Korea's Samsung Electronics and SK Hynix have also seen substantial declines, with SK Hynix's Nasdaq-listed shares dropping 14% on Thursday. These declines follow South Korea's decision to tighten regulations on single-stock leveraged exchange-traded funds, aimed at curbing excessive speculation in the market.
Regulatory Context
The South Korean market has been one of the hottest in 2023, driven by retail investor participation and leveraged bets on AI-related stocks. However, the recent regulatory measures reflect concerns about financial volatility. Former PIMCO CEO Mohamed El-Erian noted that South Korean authorities are facing a delicate challenge in managing inflation while preventing disorderly market conditions.
The decline in semiconductor stocks is likely to affect investor sentiment in technology sectors across Asia, particularly in markets heavily reliant on chip manufacturing. Investors may reassess their positions in related equities and ETFs as volatility increases.
Watch for further developments from South Korean regulators regarding trading rules and any potential impact on market stability in the coming weeks.