[Market] 2026-08-08 JADISS market outlook | SK하이닉스, 삼성전자

Last week, the domestic stock market experienced significant volatility, marked by a sharp contrast between the decline of large-cap stocks and the strong performance of KOSDAQ. In contrast, global markets showed a differentiated trend, rebounding with a focus on technology stocks, fueled by signs of easing inflation. Explore the complex market dynamics with JADISS and prepare for the week ahead.

The domestic stock market saw a stark divergence between the sluggish performance of large-cap stocks and the strength of KOSDAQ, while global markets recovered, primarily in technology stocks, driven by expectations of easing inflation.

Domestic Market: KOSDAQ Shines Amidst Large-Cap Weakness

Last week, the domestic stock market displayed significant divergence. KOSPI, dominated by large-cap stocks, fell by -5.1% weekly, indicating underperformance. However, KOSDAQ recorded a strong rebound of +10.98% weekly, highlighting a clear differentiation within the domestic market. This trend suggests investors are focusing on specific sectors.

Global Markets Rebound on Easing Inflation Expectations

In contrast to the domestic market, major global stock markets showed a rebound. Notably, the US NASDAQ rose by +5.19% weekly, and the S&P500 by +3.58% weekly, leading the recovery. This can be attributed to improved investor sentiment following observed signs of easing inflation, with both US and Korean Consumer Price Indexes (CPI) showing a month-over-month decline.

Navigate Volatile Markets with JADISS Market Research

The divergent trends and high volatility in both domestic and international markets underscore the importance of thorough market analysis. JADISS provides weekly market research to offer educational insights for informed decision-making. Our market outlook can help you establish your own investment principles amidst complex market conditions.

Evidence (JADISS synthesis)

• KOSPI weekly -5.1%, KOSDAQ weekly +10.98% (as of 2026-08-07)
• NASDAQ weekly +5.19%, S&P500 weekly +3.58% (as of 2026-08-07)
• US CPI as of 2026-06-01 at 332.568 (down month-over-month), KR_CPI as of 2026-07-01 at 119.77 (down month-over-month)

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Related: SK하이닉스, 삼성전자 (chart focus: SK하이닉스)

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