12:00verdict at this hour
KOSPI Surges Past 6,600 by Mid-Morning as Chip Giants Lead
The KOSPI climbed as high as 6,625 intraday on Wednesday, August 12 (2026), powered by a broad advance in large-cap semiconductors and electronics, with Samsung Electronics and SK hynix each posting gains of more than 5%.As of the midday snapshot, foreigners and institutional investors were net buyers on the KOSPI while retail investors sold; the KOSDAQ, by contrast, traded in negative territory, keeping the day’s divergence between the two boards firmly in view.
12:00Snapshot
A window that records the market at that hour, like a photograph
KOSPI Trades at +1.84% at Settlement; KOSDAQ Finishes at –1.03%
Top by trading value10— snapshot
A window on how the top trading-value names have moved up to this hour
Samsung Electronics and SK hynix Together Account for ₩59.6bn in Combined Turnover Through Midday
Samsung Electronics printed a session low of ₩241,000 at the open (09:00) before climbing to ₩258,000 at the 11:50 bar, with turnover reaching ₩3.32tn by the time of this snapshot; SK hynix followed a similar arc, hitting its low of ₩1,440,000 at 09:12 and its high of ₩1,520,000 at 11:50, on ₩2.64tn in volume.LG Electronics was the standout in terms of percentage move, trading from a low of ₩184,200 at the open to a high of ₩212,500 at 10:45, a intraday range of ₩28,300, while its turnover of ₩435.5bn placed it fourth on the KOSPI volume table.
| Stock | Prior close | Open | Gap | High (time) | Low (time) |
|---|---|---|---|---|---|
| Samsung Electronics | 239,496 | 243,500 | +1.67% | 257,000 (11:30) | 241,000 (09:00) |
| SK hynix | 1,425,061 | 1,456,000 | +2.17% | 1,512,000 (11:30) | 1,440,000 (09:10) |
| Samsung Electro-Mechanics | 1,262,007 | 1,288,000 | +2.06% | 1,330,000 (11:35) | 1,275,000 (09:00) |
| LG Electronics | 181,700 | 184,200 | +1.38% | 212,500 (10:45) | 184,200 (09:00) |
| SK Square | 945,027 | 982,000 | +3.91% | 1,032,000 (10:10) | 970,000 (09:00) |
| Kumho E&C | 11,490 | 11,620 | +1.13% | 14,930 (10:50) | 11,340 (09:00) |
| Samsung Electronics (Pref.) | 180,205 | 182,500 | +1.27% | 188,300 (11:30) | 180,500 (09:00) |
| Daewon Cable | 14,520 | 15,100 | +3.99% | 15,930 (10:20) | 15,020 (09:00) |
| Korea Kolmar | 107,901 | 114,100 | +5.75% | 139,300 (10:10) | 109,000 (09:10) |
| Samsung SDI | 459,482 | 468,000 | +1.85% | 496,500 (09:55) | 459,500 (09:05) |
Korea Kolmar’s session was among the more volatile in the top-ten list: it opened at ₩115,400, touched a low of ₩109,000 at 09:14, then surged to a high of ₩139,300 at 10:10 before settling back toward ₩135,500 near the midday mark.Kumho Construction reached its high of ₩14,930 at 10:53 and held there through the snapshot, with ₩289.8bn in turnover — notable for a name whose market capitalization is a fraction of the other top-volume issues on the board today.
Gainers5· Decliners5— snapshot
A window on the biggest gainers and decliners, and the reasons behind them
KOSPI Breadth Tilts to Chips and Consumer Goods; KOSDAQ Losers Outweigh Winners
On the KOSPI, the sharpest gains were concentrated in semiconductors and consumer staples-adjacent names: Samsung Electronics (+7.10%), SK hynix (+5.82%), LG Electronics (+15.30%), Kumho Construction (+29.94%), and Korea Kolmar (+26.69%) topped the advance list among names with at least ₩100bn in turnover.On the downside, Kyungdong Navien (–12.99%), Shinsegae (–6.65%), and OCI Holdings (–5.67%) led KOSPI decliners, while the KOSDAQ’s heaviest-volume losers included Delicious (–18.00%), Pearl Abyss (–14.09%), and Simtec (–8.87%), underscoring the day’s split between a large-cap KOSPI rally and KOSDAQ weakness.