Korean Stock Market Trapped in a Box Range… Three Catalysts to Spark a Sharp Rally / Where Are Leading Stocks After Chuseok? | Lee Jung-yoon, Tax Accountant

박스권 갇힌 한국증시… 시원하게 급등 시킬 ‘3가지 재료’ / 추석 이후 주도주는 어디?ㅣ이정윤 세무사
Watch on YouTube ↗  |  September 18, 2026 at 08:30  |  25:20  |  815 Money Talk (815머니톡)
Speakers
Lee Jung-yoon — Tax accountant

Summary

Lee Jung-yoon, a tax accountant and active investor, explains that KOSPI is trapped in a 6,500–7,000 box after a historic rally and crash. He says investor deposits and volume are falling, with all three major voluntary buyer groups net sellers over the past month and only corporate buybacks supporting the market. He identifies three potential catalysts for a breakout: AI acceleration sentiment, a rate freeze or cut, and an end to the U.S.-Iran war that lowers oil. He also warns that Samsung Electronics and SK hynix earnings growth may be peaking and AI slowdown worries could pressure semiconductor valuations.

  • KOSPI has been boxed around 6,500–7,000 after a 2,280→9,380 rally and a 5,200 crash.
  • Retail, foreign, and institutional investors have all been net sellers over the past month, leaving mandatory buybacks as the main buyer.
  • Three upside catalysts: pro-AI acceleration shift, rate freeze/cut, and U.S.-Iran war resolution/oil stabilization.
  • Samsung Electronics and SK hynix are the key AI-related supply-side leaders for the Korean market.
  • Earnings growth rates for Samsung and SK hynix may be hard to exceed, and AI slowdown debate is a valuation risk.
  • The guest advises range-trading in the box and holding rather than selling at breakeven for long-term holders.
  • Oil above $100 is keeping inflation and rate-hike risk alive for Korea.
Ideas
Lee Jung-yoon Tax accountant 6:07
KOSPI boxed; three catalysts for breakout
KOSPI has been trapped in a narrow 6,500–7,000 box since early August after a 1-year-2-month rally from 2,280 to 9,380 and a roughly 40% crash to 5,200. Deposits and trading volume show investors leaving, and over the past month retail, foreign, and institutional investors were all net sellers, leaving only mandatory corporate buybacks; a break toward 7,500–8,000 requires at least one of three catalysts: a reversal of the AI slowdown narrative, a rate freeze/cut signal, or an end to the U.S.-Iran war that stabilizes oil. He says the probability is not high, so this is mainly a monitored setup.
Lee Jung-yoon Tax accountant 7:24
Oil fall on war end helps Korea
Oil is a key macro linkage for Korea: the unresolved U.S.-Iran war has pushed oil back above $100, keeping inflation and additional rate-hike risk alive. If the war ends and oil stabilizes or falls, that would be a major positive catalyst for Korean equities and would reduce rate-hike pressure.
Lee Jung-yoon Tax accountant 8:04
AI acceleration view could lift Korean semis
Samsung Electronics and SK hynix are Korea's AI-related supply-side stocks. The AI slowdown debate is split between big-tech users that want to slow capex and suppliers such as Nvidia plus the Trump administration that want faster AI buildout. If the pro-acceleration view becomes stronger, Korean AI-related stocks could surge again, but the debate is unresolved and is a major swing factor for semiconductor earnings and valuation.
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