Market Overview

On October 15, both the Kospi and Kosdaq indices in South Korea experienced substantial declines, each falling over 6%. This downturn was precipitated by concerns surrounding inflation in the United States, putting significant selling pressure on key technology and growth stocks.

Key Contributing Factors

The primary drivers behind this market volatility were:

• Widespread selling of major shares like Samsung Electronics and SK Hynix, underpinned by hesitations about artificial intelligence investments.
• Net selling by foreign investors on the Kospi, amounting to 982.8 billion won, which contrasted sharply with institutional buying activity.
• Rising inflation in the U.S., with the consumer price index for September registering a 3.7% year-over-year increase, surpassing the anticipated 3.6%.

Index Performance

At 9:23 a.m. KST, the Kospi index stood at 5,641.71 points, reflecting a decrease of 367.10 points (6.11%) from the previous closing. The Kosdaq similarly fell, recording a decline of 56.18 points (6.82%), settling at 767.70 points.

The markets faced renewed sell-side activity with the Kospi triggering a sell sidecar for the second time within two days after a similar suspension was invoked on October 13.

Impact on Major Stocks

Prominent stocks faced significant losses:

• Samsung Electronics: down over 7%
• SK Hynix: down more than 8%
• Other notable declines were seen in SK Square, LG Energy Solution, Hyundai Motor, and many others.

Investor Behavior

Investor sentiments diverged across the markets:

• On the Kospi, institutional investors were net buyers, purchasing 951.4 billion won, while retail investors accumulated 4.1 billion won.
• In contrast, the Kosdaq witnessed a net selling of 112 billion won by retail investors, while both foreign and institutional investors recorded net buying of 106.8 billion won and 8.2 billion won, respectively.

Broader Economic Context

The pressures faced by South Korean markets reflect broader trends in the U.S., where technology shares led significant declines. The Nasdaq Composite Index dropped by 1.88%, with the S&P 500 and Dow Jones Industrial Average also seeing negative movements as concerns about interest rates lingered in investor discussions.