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Samsung Electronics and SK Hynix both fell more than 5% as the KOSPI lost the 7,000 level for the first time in four sessions.
We break down why foreign and institutional investors sold heavily while retail bought the dip, why trading volume is at its lowest point of the year, and what to watch before the week's key US data lands.

Sources:
- KOSPI Falls Below 7,000 as Semiconductor Stocks Lead Selloff — Seoul Economic Daily, September 28, 2026
- Trading Turnover Hits Yearly Low as Market Momentum Cools — Seoul Economic Daily, September 28, 2026
- Samsung Electro-Mechanics Beats Estimates Despite Weaker Dollar — Seoul Economic Daily, September 28, 2026

About AI PRISM:
AI PRISM is Seoul Economic Daily's WAN-IFRA award-winning newsroom AI series, delivering Korean economic news adapted for global audiences. Episodes are produced with AI assistance and reviewed by a human editor.

투자 유의사항: 본 콘텐츠는 정보 제공을 목적으로 하며 투자 권유가 아닙니다. 투자 판단과 그 결과에 대한 책임은 투자자 본인에게 있습니다.

Tags:
#RetailInvestors #KoreaStocks #KOSPI #AIPRISM #SeoulEconomicDaily #WANIFRA

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00:15다음 영상에서 만나요
00:30Here's what's actually behind the drop and what to watch next
00:33It's Tuesday, September 29th
00:35Let's look at what this means for retail investors in Korea
00:39Korean markets reopened after the Chuseok holiday
00:42to a wall of bad news that had built up while trading was closed
00:46U.S. Treasury yields spiked to their highest levels in nearly two decades
00:51and oil prices climbed back toward $100 a barrel on Middle East tensions
00:56Both pushed global risk appetite lower
00:59just as Korea's biggest chipmakers were due to report strong earnings
01:03Here's what the numbers show
01:05The Kospi closed at 6,889.74
01:10down 191.18 points or 2.70% on Monday
01:17Samsung Electronics fell 5.43% to 270,000 won
01:23or about $198, while SK Hynix dropped 5.05% to 1,768,000 won
01:32or about $1,295
01:36Foreign investors sold 3.24 trillion won
01:40or about $2.4 billion of Korean stocks
01:43led by SK Hynix and Samsung Electronics
01:47Individual investors bought 2.61 trillion won
01:51or about $1.9 billion net
01:54cushioning the overall decline
01:56Monthly trading turnover fell to 0.50% this month
02:01the lowest reading of the year
02:03and down from March's 1.74% peak
02:06Samsung Electromechanics, an AI parts supplier
02:10still reported a projected 2.3 times jump
02:14in third-quarter profit despite the weaker dollar
02:17a sign not every stock is moving with the index
02:20So what does this mean for retail investors
02:22holding Korean stocks or ETFs?
02:25Earlier, we said Samsung Electronics and SK Hynix
02:29both dropped more than 5%
02:32That's a market-wide reaction to global rates
02:34not a change in either company's actual business
02:37since Samsung Electromechanics reported stronger
02:40AI-linked earnings the very same day
02:43If you're holding a Korea ETF or these individual names
02:47know that the drop tracks bond yields and oil prices
02:50more than anything specific to the companies
02:53and this isn't a signal to buy or sell either way
02:56Watch three things
02:58Wednesday's U.S. personal consumption expenditures inflation data
03:02Micron's earnings release
03:04and whether Korean trading volume picks up from its current yearly low
03:08That's today's AI Prism
03:10Retail Investors
03:12This episode was produced with AI assistance
03:15based on Seoul Economic Daily reporting
03:17and reviewed by a human editor
03:19AI Prism is a Juan Ifra award-winning series
03:23We'll be back tomorrow
03:25You've been listening to AI Prism
03:27from Seoul Economic Daily
03:32You've been listening to AI Prism from Seoul Economic Daily

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