[E-Daily Reporter kyoungeun kim ] On the afternoon of the 10th, the KOSPI continued its sharp rally of over 5%, driven by a recovery in investor sentiment toward artificial intelligence (AI) semiconductors. The market saw a surge, with the intraday buy-side circuit breaker being triggered. The KOSDAQ also rose by over 6%, regaining the 800-point level.
According to MP Doctor, as of 1:09 p.m., the KOSPI is trading at 7,690.22, up 398.31 points (5.46%) from the previous trading day. The KOSDAQ is also trading at 844.20, up 50.20 points (6.32%).
At 12:54 p.m. today, a buy-side sidecar was triggered on the stock market. This occurred after the KOSPI 200 futures price rose 5.13% from the benchmark price (1,179.55 points) to 1,240.15 points and remained at that level for one minute.
This marks the 17th time a buy-side sidecar has been triggered this year. The sidecar was automatically deactivated five minutes after it was triggered.

In the stock market, institutional investors are leading the index higher with net purchases of 1.7896 trillion won. In contrast, retail investors and foreign investors are net sellers by 1.4811 trillion won and 236.8 billion won, respectively. Program trading showed a net purchase of 383.1 billion won, combining both arbitrage and non-arbitrage trades.
Kang Jin-hyuk, a senior researcher at Shinhan Investment Securities, said, “As AI cycle-related noise subsides following a series of investment news from companies like Meta—which had previously raised doubts about capital expenditures—rebound buying is flowing in,” adding, “With supply and demand conditions easing, buying momentum is spreading, with about 90% of stocks in both markets rising.”
He continued, “News that Meta will begin mass-producing its own AI chips in September to secure 14 gigawatts (GW) of computing power next year demonstrates that the computing power sales are not driven by excess resources but by capacity shortages, which in turn highlights the high profitability of the leasing business.”
The securities industry analyzes that the mechanical selling pressure from the National Pension Service—which had been identified as a source of market instability during the recent stock market plunge—has eased significantly.
Yeom Seung-jun, an analyst at Meritz Securities, stated, “As of the closing price on the 8th, the National Pension Service’s allocation to domestic stocks stood at 26.3%. Although it had risen from 29.9% at the end of May to 31.1% on the 22nd of last month—exceeding the permitted range (28.8%)—the recent decline has brought it back within the Strategic Asset Allocation (SAA) range,” and “The National Pension Service’s mechanical selling pressure is expected to ease,” he explained.
Stocks with the highest market capitalization are all surging sharply. KB Financial Group(105560)(+10.68%), SamsungElectroMechanics(009150)(+7.57%), SKSQUARE(402340)(+7.31%), SamsungElectronics(1P)(005935)(+7.11%), SamsungElectronics(005930)(+6.65%), SAMSUNG BIOLOGICS(207940)(+6.04%), Samsung Life Insurance(032830)(+5.67%), SK hynix(000660)(+3.34%), HyundaiMotor(005380)(+4.60%), and LG Energy Solution(373220)(+3.67%) are all rising.
At this time, the KOSDAQ is also trading at 844.20, up 50.20 points (6.32%).
Institutional investors are driving the index with net purchases of 442.5 billion won. In contrast, retail and foreign investors are net sellers by 324.3 billion won and 117.7 billion won, respectively.
Top KOSDAQ stocks by market capitalization are also showing strength. PSK INC.(319660)(+24.44%), WONIK IPS Co.,Ltd.(240810)(+17.64%), JUSUNG ENGINEERING Co.,Ltd.(036930)(+8.80%), Alteogen Inc.(196170)(+8.67%), LEENO Industrial Inc(058470)(+8.57%), ECOPRO BM CO., LTD.(247540)(+9.51%), ECOPRO CO., LTD(086520)(+7.30%), Rainbow Robotics(277810)(+7.42%), and Kolon TissueGene, Inc.(950160)(+3.78%) are all rising.
Conversely, HLB INC.(028300)is plummeting 29.89% following news that its new liver cancer drug failed to receive approval from the U.S. FDA.
By sector, telecommunications equipment, conglomerates, construction, and electrical equipment are surging by 8 to 10 points, with most sectors showing a bullish trend. However, credit cards, healthcare equipment, and supplies are trading lower.