Samsung Electronics, SK Hynix: KOSPI for Chip-Heavy Portfolios

Starting Point for Investing in Samsung Electronics and SK Hynix

Before asking whether to buy more Samsung Electronics and SK Hynix shares, investors should first assess how much semiconductor exposure they already have. In an Asia Business Daily Securities interview on 2026-10-28, KB Asset Management Head of ETF Product Marketing Yook Dong-hwi advised retail investors with heavy semiconductor exposure to buy the broader KOSPI rather than add individual stocks. His point was that a company’s fundamentals and an investor’s portfolio choices should be evaluated separately.

Yook said, “Even buying a benchmark index such as the KOSPI 200 provides exposure to Samsung Electronics and SK Hynix, which together account for more than half of its market capitalization.” The implication is straightforward: choosing the index preserves exposure to both semiconductor companies while producing a different portfolio composition than adding their individual shares.

Assessing the HBM Technology Gap and Fundamentals

HBM is a core technology in the high-value-added memory market. Yook said, “The fundamentals of Samsung Electronics and SK Hynix remain intact.” Investors should distinguish between an assessment of the companies’ current strength and a forecast guaranteeing future share-price gains.

Micron, SanDisk, and ChangXin Memory Technologies (CXMT) were also mentioned in the competitive landscape. Regarding ChangXin Memory Technologies (CXMT), Yook said, “It remains at least one generation behind in high-value-added segments such as HBM, leaving a clear technology gap.” His argument is that concerns about competitors catching up in lower-end products should not be judged by the same standard as HBM competitiveness.

Individual Semiconductor Stocks Versus the KOSPI

Buying more of an individual stock makes that company’s future share price a direct driver of portfolio performance. Buying the broader KOSPI retains exposure to Samsung Electronics and SK Hynix while spreading capital across other industry sectors. This is why the index approach was proposed for investors who already hold substantial semiconductor positions.

Potential diversification areas included power equipment and infrastructure linked to AI infrastructure, secondary-battery companies benefiting from energy-storage systems, and domestic refiners. These were presented as candidates for reducing semiconductor concentration, not as guarantees of returns in those industry sectors. Company-specific earnings and returns were not available in the FACT_SHEET.

The Role of the 25 Trillion Won Covered-Call ETF Market

Asia Business Daily Securities reported that the combined net assets of Korea-listed covered-call ETFs recently reached about 25 trillion won. A covered-call strategy holds an underlying asset while using call options. Yook illustrated the structure with the example of someone who owns an apartment currently worth 1 billion won, sells another person the right to buy it for 1.1 billion won in one year, and immediately receives an option premium of 50 million won.

Recently launched target-premium and fixed covered-call products were described as using 10–30% of their underlying assets for options while retaining 70–90% participation in a rising market. The key point is the trade-off involved, rather than the distribution itself. The share allocated to options determines the balance between collecting premiums and participating in gains in the underlying assets.

Conditions Separating Bullish and Bearish Scenarios

In the bullish scenario, the fundamentals of Samsung Electronics and SK Hynix remain intact, allowing assessments of their HBM technology advantage to support the investment case. Under these conditions, a KOSPI approach lets investors retain the two companies’ current combined market capitalization weighting of more than half while reducing industry-sector concentration.

In the opposing scenario, future share prices may diverge from expectations, or inflows from foreign investors may not resume. The future growth of the covered-call ETF market and the actual returns of the strategies discussed also remain unknown. Investors therefore should not assess individual product performance solely from the market’s 25 trillion won in net assets.

Indicators Investors Should Monitor Next

• Semiconductor fundamentals: Check whether upcoming company earnings support the current assessment of Samsung Electronics’ and SK Hynix’s underlying strength.
• Technology gap: Watch for changes in assessments of ChangXin Memory Technologies (CXMT) in the high-value-added HBM segment.
• Fund flow: Whether inflows from foreign investors will resume remains unconfirmed. An actual reversal in fund flow would provide grounds to reassess the KOSPI investment case.
• Product structure: When selecting a covered-call ETF, determine whether 10–30% of the underlying assets are used for options and whether upside participation is 70–90%, then assess whether the structure matches your cash-flow objectives.

This article was automatically summarized and analyzed from the original news report. View Original Article (Asia Business Daily Securities)