12:00verdict at this hour
KOSPI Reverses Higher, Up 1.12% at Noon; KOSDAQ Eases 0.28%
By midday Tuesday, August 11 (2026), the KOSPI was trading around 6,370.04 — up +1.12% from Monday’s close, having recovered from a session low of 6,213.78 struck at 09:07.The KOSDAQ eased to 852.06, down −0.28% from Monday — the two boards moving in opposite directions at the noon mark (as of 12:00 KST, five-minute bars).
Intraday provisional; final scoring runs in the Final edition. An earlier version of this scorecard (P1 △ · P2 ✗) was graded on 9 a.m. prices — corrected here
12:00Snapshot
A window that records the market at that hour, like a photograph
Foreign futures buyers for four straight sessions; KOSPI non-arbitrage programs net selling ₩43.5bn by midday
Top by trading value10— snapshot
A window on how the top trading-value names have moved up to this hour
Samsung Electronics ₩285.7bn and SK hynix ₩268.9bn lead KOSPI turnover; Jusung Engineering tops KOSDAQ at ₩404.9bn
Samsung Electronics and SK hynix together accounted for the two heaviest KOSPI turnover slots — ₩285.7bn and ₩268.9bn respectively — yet moved in opposite directions: Samsung Electronics was up +3.91% at 239,000 won, while SK hynix edged down −0.07% to 1,419,000 won.On KOSDAQ, Jusung Engineering’s ₩404.9bn in turnover was more than 1.7× the next-heaviest name (Jeju Semiconductor at ₩226.2bn), with the stock up +9.81% at 158,700 won by the midday snapshot.
| Stock | Prior close | Open | Gap | High (time) | Low (time) |
|---|---|---|---|---|---|
| Samsung Electronics | 230,007 | 229,500 | −0.22% | 241,000 (10:20) | 227,500 (09:15) |
| SK hynix | 1,419,994 | 1,405,000 | −1.06% | 1,426,000 (10:20) | 1,373,000 (10:05) |
| Samsung Electro-Mechanics | 1,274,041 | 1,238,000 | −2.83% | 1,248,000 (10:20) | 1,191,000 (10:05) |
| Hanwha Solutions | 35,250 | 34,200 | −2.98% | 38,250 (09:15) | 32,900 (09:00) |
| SK Square | 948,957 | 929,000 | −2.10% | 954,000 (10:20) | 901,000 (09:00) |
| Daewon Cable | 14,951 | 15,050 | +0.66% | 16,160 (09:10) | 14,630 (09:00) |
| Samsung Electronics (Pref.) | 171,997 | 170,000 | −1.16% | 178,000 (10:20) | 169,400 (09:00) |
| Kumho E&C | 8,840 | 9,030 | +2.15% | 11,490 (10:00) | 8,940 (09:00) |
| SK eternix | 51,298 | 52,400 | +2.15% | 54,800 (09:10) | 50,000 (09:00) |
| Celltrion | 200,991 | 200,000 | −0.49% | 212,000 (11:10) | 199,100 (09:00) |
The KOSPI session low of 6,213.78 was set at 09:07, and the intraday high visible in the minute-bar data reached 6,374.73 at 10:23 — a high-to-low range of 61.96 points (1.0%).The KOSDAQ session low of 840.45 was also printed at 09:07, and the intraday high of 875.16 came at 09:51, after which the index gradually drifted back to the 853 area by midday — a high-to-low range of 31.56 points (3.76%).
Gainers5· Decliners5— snapshot
A window on the biggest gainers and decliners, and the reasons behind them
KOSPI: 573 advancers vs. 288 decliners; KOSDAQ: 1,025 vs. 612 — breadth positive on both markets
KOSPI breadth stood at 573 advancers against 288 decliners (Advance-Decline RatioThe number of advancing stocks divided by the number of declining stocks on a given exchange for the session.An ADR above 1.0 signals that gains are spread across the market rather than concentrated in a handful of large caps. 1.99) as of the midday snapshot, with the top-10 stocks accounting for 62.4% of total turnover — narrower concentration than Monday’s 58.9% but above last week’s readings.The KOSDAQ showed broader participation: 1,025 stocks advanced against 612 decliners (ADR 1.67), with top-10 concentration at 34.5%, up modestly from Monday’s 32.7%.The divergence in the winner and loser lists was sharp: defense names (Korea Aerospace Industries −9.47%, Hanwha Aerospace −5.64%, LIG Defence & Aerospace −5.22%, Hanwha Ocean −4.98%, Hanwha Systems −4.79%) dominated the KOSPI decliners, while Samsung Electronics (+3.91%), Celltrion (+4.98%), and Hyundai Marine & Fire Insurance (+8.54%) led gainers.On KOSDAQ, Alteogen fell −6.75% with ₩153.9bn in turnover, while Jusung Engineering (+9.81%, ₩405.2bn) and SPG (+8.29%) moved in the opposite direction — multiple factors were active simultaneously and no single cause can account for the overall index moves.