Two companies ARE half of Koreas stock market 📉 [XPRyvgobWgg]
On Monday, July 13, 2026, South Korea's Kospi fell 8.95% in a single session - and just two companies did most of the damage. Coming into Monday, Samsung Electronics and SK Hynix had swollen to MORE THAN HALF of the entire index: they crossed 40% of total Kospi market cap in March, crossed half for the first time ever in late May (50.44%), and hit a record 60% on June 30. So when SK Hynix fell 15.37% - its biggest one-day drop on record, worse than its 2008-crisis fall of 14.93% - and Samsung fell 10.70%, the whole market went down with them: an 8.95% index drop and a 20-minute market-wide trading halt, the 7th circuit breaker of 2026. Foreign investors net sold about $1.1B that day, mostly SK Hynix (KED Global). The lesson: when two names are half the market, their bad day is everyone's bad day. (Tuesday, the index whipsawed from nearly -5% intraday to close +0.73% - led by a rebound in the same two stocks. Concentration cuts both ways.) Sources: KRX day-of data via bloomingbit (Jul 13); weights: Seoul Economic Daily (May 27), Businesskorea (Jun 19), BigGo (Jun 30); Bloomberg (record drop). Educational, not financial advice. Visuals AI-assisted. #Shorts #kospi #samsung #skhynix #stockmarket #concentration #moneycharts #hiddeneconomics Narration and some visuals in this video are AI-generated.