The Disconnection Between Market Performance and Individual Investor Experiences
Many investors are puzzled by the discrepancy between the overall performance of the stock market and their personal investment outcomes. For instance, Mr. Kim, an office worker, has noticed that his account balances haven’t changed much compared to the start of the year, despite the widespread reports of significant gains through stock investments. This situation highlights a growing concern among retail investors who feel disconnected from the broader market trends.
The Korea Composite Stock Price Index (KOSPI) has experienced a remarkable surge this year, increasing by approximately 70% and reaching the 4,200 mark for the first time in early December. However, not all investors have benefited from this growth. Many, like Mr. Kim, are questioning why their portfolios haven’t reflected the same upward trend.
Concentrated Gains in Large-Cap Stocks
One key reason for this disparity is the concentration of gains in large-cap stocks. According to an analysis by this newspaper using data from the Korea Exchange, the proportion of rising stocks on days when the KOSPI increased was only 50.1% in the fourth quarter of this year (up to November 7). This figure is the lowest since the fourth quarter of 1999, indicating that even on days when the index rose, the number of rising and falling stocks was nearly equal.
For example, on the day the KOSPI surged 2.8% and crossed the 4,200 threshold for the first time on the 3rd, the proportion of rising stocks was limited to just 31.9%. This suggests that the majority of stocks did not participate in the index’s growth.
The Impact of Large-Cap Dominance
Experts attribute this phenomenon to a “large-cap concentrated market trend.” While the KOSPI large-cap index (market cap rankings 1–100) rose by 71.3% up to the 7th of this year, mid-cap stocks (101–300) gained only 37.4%, and small-cap stocks (301st and below) rose by 15.4%. Notably, Samsung Electronics and SK Hynix, the top two by market capitalization, surged by 82% and 233%, respectively, driving a significant portion of the KOSPI’s gains.
Huh Jae-hwan, a researcher at Eugene Investment & Securities, emphasized that without Samsung Electronics and SK Hynix, the KOSPI would have been in the 3,300 range. This implies that investors who missed out on leading stocks that heated up the market this year, such as Samsung Electronics, SK Hynix, or the shipbuilding, defense, and nuclear power sectors, would not have felt the KOSPI’s rise.
Investor Losses and Profitable Stocks
According to NH Investment & Securities, as of the 30th of last month, over half of the 2,401,502 customers with stock accounts at the company—1,312,296 investors (54.6%)—were found to be incurring losses. For these investors, certain stocks had a more significant impact on their losses than others. POSCO Holdings, Kakao, Geumyang, and EcoPro BM were the most impactful stocks for those suffering losses.
On the other hand, for investors who made profits, Samsung Electronics, SK Hynix, and Doosan Enerbility were the most influential stocks. This further underscores the uneven distribution of gains within the market and the challenges faced by investors who did not align with the dominant trends.
Conclusion
The current market dynamics highlight the importance of strategic investment choices. While the KOSPI has shown impressive growth, the benefits have not been evenly distributed. Investors need to be aware of the concentration of gains in large-cap stocks and consider diversifying their portfolios accordingly. Understanding these trends can help investors make more informed decisions and better navigate the complexities of the stock market.