[Deep Dive] KOSPI Index Strength: Semiconductor Skew and 2H Outlook

Capital Concentration in Large-Cap Semiconductors

The KOSPI index has recently continued a solid upward trend, approaching its all-time highs. As of late June 2026, the market has experienced a roller-coaster ride with extreme volatility, but has ultimately settled into a strong bullish pattern. The core driver of this trend is undoubtedly the strong concentration of capital in large-cap semiconductor stocks, such as Samsung Electronics and SK Hynix. According to market analysts, the recent index volatility is not caused by any damage to macroeconomic fundamentals. Rather, it is primarily due to temporary supply-demand imbalances as funds concentrate on specific large-cap stocks, coupled with a surge in trading of single-stock leveraged ETFs. Paradoxically, this suggests that the fundamental strength of the market's leading sectors remains robust.

Fundamentals Proven by Export Data

The strength of the semiconductor sector leading the market is firmly supported by concrete economic indicators, moving beyond mere expectations for the AI theme. According to the 'Q3 2026 Export Business Survey Index (EBSI)' released by the Korea International Trade Association (KITA) on June 28, 2026, the semiconductor sector index recorded an overwhelming 142.6, forecasting that it will lead the overall export recovery. This is due to the continued upward trend in DRAM prices, along with solid demand for server DRAM and high-performance SSDs. This strong export indicator is spreading positive expectations throughout the market for the upcoming Q2 earnings announcements from Samsung Electronics and SK Hynix scheduled for early July.

Positive View from Global Institutions and Strategy

Foreign investors, including global investment banks, maintain a highly optimistic outlook on the Korean stock market. Major global investment institutions like JP Morgan recommend actively utilizing recent intraday corrections as an opportunity to expand positions, firmly maintaining a 'Bullish' stance on Korean equities. Furthermore, some analysts cautiously suggest the possibility of a structural bull market for the KOSPI from a long-term perspective, provided the semiconductor sector's leadership remains intact. In the current environment, rather than being swayed by short-term index volatility, a strategy of accumulating large-cap semiconductor stocks with proven earnings through fractional buying during market pullbacks will be a valid approach.