On Wednesday, August 5 (2026), KOSPI finished +2.95% higher at 6,546.64, and KOSDAQ closed at 791.51, up +1.38%.The day after the US semiconductor index (SOX) surged +6.55%, KOSPI’s semiconductor sector rose +6.01%, construction & infrastructure +6.70%, and power & electric +6.63% — several sectors
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Right after Wednesday’s open on August 5 (2026), KOSPI started at 6,593, shot to a 9:38 high of 6,674, and as of 10:00 has slipped back to the 6,596 line — giving back half the upper gap.Following the overnight +6.55% surge in the US semiconductor index (SOX), SK hynix +7.17% and Samsung Electronics
Overnight, the US semiconductor index (SOX) surged +6.55%, the S&P500 closed +1.79%, and the Nasdaq +2.59%.EWY, the Korea ETF, gained +6.8% from the prior day, and in the current 2026 regime KOSPI has risen on 79% of the past 28 Wednesdays.
On Tuesday, August 4, 2026, KOSPI swung through an extreme 309.15pt range — from an early high of 6,389pt to a low of 6,080pt — before closing at 6,358.95pt.KOSDAQ far outpaced it at +5.88%, with bio, power, and AI & software sectors leading the advance while semiconductors and autos moved the other
On Tuesday, August 4 (2026), KOSPI closed at 6,358.95, up +1.62%, and KOSDAQ printed 780.72, up +5.88%.While Samsung Electronics and SK hynix held the index back at -3.33% and -3.64%, the NAVER, SK Telecom, and bio groups widened their gains, pulling the two indexes along different tracks.
On Tuesday, August 4 (2026), KOSPI closed at 6,358.95, up +1.62% from the prior day.KOSDAQ rose +5.88% to 780.72 — both indexes closed higher, with KOSDAQ gaining far more.
KOSPI climbed to 6,389 right after the open, then slid to the 6,080 line around 10 a.m. as losses widened, and the 12:00 mark stood at 6,171.06, down -1.38% from the prior day.KOSDAQ, by contrast, opened at 748.19, rose as high as 774.93, and finished the morning at 766.97 — up +4.02% — leaving the
Among the top names by trading value, KOSPI’s downside pressed hardest on semiconductors and autos — Samsung Electro-Mechanics −5.17%, Hyundai Mobis −5.17%, SK hynix −3.64%, and Samsung Electronics −3.34%.On the upside, AI, telecom, and energy names stood out — SK Eternix +20.95%, NAVER +9.16%, SK T
Overnight, US markets rebounded — S&P500 +1.48%, Nasdaq +2.13%, and the semiconductor index (SOX) +1.05%.On domestic flows, pension funds net-bought ₩979.1bn on KOSPI over one week while retail net-sold ₩2.72tn — and with the crash-warning score at 3 and the ADR signal both alive, plain optimism is
KOSPI closed at -5.12% while KOSDAQ finished at +2.44%, leaving the two indices more than 7.56pp apart.Foreign investors were net sellers of ₩1.52tn on KOSPI and Samsung Electronics and SK hynix fell -6.48% and -5.59%, while buying gathered in non-semiconductor small caps such as construction and in