Keyword → Samsung Electronics

SK Hynix Falls 15.4% in Record Seoul Plunge — KOSPI Triggers 7th Circuit Breaker of 2026 as AI Memory Unwind Spreads to US Premarket

SK Hynix shares fell 15.4% in Seoul — their worst single-session decline on record — dragging the KOSPI down 8.95% and triggering a 20-minute market-wide circuit breaker, the seventh of 2026. The rout came just one day after SK Hynix's $26.5 billion US ADR debut, as arbitrage selling, a downgraded Q2 profit forecast from Korea Investment & Securities, and renewed US-Iran tensions converged. Micron Technology and the VanEck Semiconductor ETF are both lower in US premarket trading.

Samsung Q2 2026 Operating Profit Hits Record $58.4B, Up 19-Fold — Revenue Misses at 171T Won, Shares Fall 6.8%

Samsung Electronics posted a preliminary Q2 2026 operating profit of 89.4 trillion won ($58.4 billion), a 19-fold year-over-year increase that set a new all-time corporate record and beat the LSEG SmartEstimate of 87.3 trillion won. Revenue came in at 171 trillion won, up 129% year-over-year but short of the 172.2 trillion won consensus. Shares fell as much as 6.8% in Seoul as some traders had expected profit to top 100 trillion won before bonus provisions, dragging Micron and SanDisk lower in US premarket.

Nasdaq 100 Futures Slide 3.1%, Kospi Plunges 10% — Global AI Selloff Hits SK Hynix and Samsung as Rate-Hike Fears Mount

Nasdaq 100 futures fell 3.1% in premarket trading Tuesday while South Korea's Kospi plunged nearly 10% — its worst session in years — as a global technology selloff intensified overnight. SK Hynix fell more than 12% and Samsung Electronics dropped sharply, triggering circuit breakers on South Korean exchanges. European markets followed, with ASML down 5% and the Euro Stoxx Technology index falling 3%. The selloff reflects mounting investor concern over Federal Reserve rate-hike signals and the cost of AI infrastructure debt.

South Korea's KOSPI Surges 5% to 5,925 as Samsung and SK Hynix Lead Record Institutional Buying Amid AI Memory Boom

South Korea's benchmark KOSPI index surged more than 5% on Wednesday, closing at 5,925.03 on record institutional net buying of 3.1 trillion won — the single largest institutional buy day in the exchange's history. Semiconductor giants Samsung Electronics and SK Hynix led the rally, reclaiming key psychological price levels at 200,000 won and 1 million won respectively, as investors positioned ahead of Micron Technology's blockbuster earnings expected after the U.S. close.