[#찐시황] 이런 쏠림장은 처음이다.. 삼성전자·SK하이닉스 시총 60% 충격 "JP모건의 코스피 15000이 AI 버블의 끝?" ㅣ 황유현 팀장

Summary

KOSPI surged 5.4% but KOSDAQ struggled amid extreme concentration. Hwang Yoo-hyun, team leader at Shinhan Investment, explains that Samsung Electronics and SK Hynix now represent over 60% of KOSPI market cap, driven by structural AI memory demand. He advises holding these large-cap semis at market weight to keep pace with the index and watching semiconductor front-end equipment stocks for a potential capex-led rebound, while emphasizing cash management and patience.

• KOSPI jumped over 5%, but gains were heavily concentrated in Samsung Electronics and SK Hynix.
• Together, Samsung Electronics, SK Hynix, and related affiliates exceed 60% of KOSPI market cap, making index participation difficult without owning them.
• Micron's strong guidance reinforced the AI memory thesis, supporting a structural growth view for memory leaders.
• KOSDAQ remains weak across biotech, secondary batteries, and semiconductor materials/equipment, with no clear near-term catalyst.
• Hwang recommends holding Samsung and SK Hynix at market weight and keeping cash.
• He suggests watching front-end semiconductor equipment stocks for a rebound once capex expansion news triggers rotation.
• Extreme concentration may persist, and tactical rebalancing should be considered only on sudden vertical rallies.
• The speaker sees the current market regime as unprecedented and advises a cautious, benchmark-aware approach.