[Edaily Reporter Kwon Oh Seok ] The domestic stock market opened higher, led by the semiconductor sector, as NVIDIA—the leading artificial intelligence (AI) semiconductor stock—announced its best-ever earnings overnight, providing a positive boost

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According to MP Doctor on the 27th, the KOSPI opened at 6,996.12, up 187.91 points (2.76%) from the previous trading day, and as of 9:06 a.m., it was trading at 6,982.82, up 174.61 points (2.56%), putting it on the verge of reclaiming the “7,000-point mark”(KOSPI 7,000) is within reach.
So far today, retail and institutional investors have posted net sales of 69.2 billion won and 40.4 billion won, respectively, while foreign investors alone have recorded net purchases of 87.6 billion won. By trading type, combined arbitrage and non-arbitrage trades show a net buying position of 97.4 billion won.
With NVIDIA reporting earnings that exceeded market expectations, a positive sentiment is sweeping through the domestic stock market. Earlier on the 26th (local time), NVIDIA announced that revenue for the second quarter of fiscal year 2027 (May–July) reached $96.22 billion (approximately 133.3147 trillion Hanwha won), up 106% year-over-year and 18% quarter-over-quarter. Driven by explosive demand for AI semiconductors, the company set a new all-time revenue record for the 13th consecutive quarter, a figure that exceeds Wall Street’s consensus estimate of $92.27 billion—compiled by financial data provider FactSet—by approximately $4 billion.
Profitability metrics also improved significantly. Adjusted earnings per share (EPS) came in at $2.22, surpassing market expectations of $2.09. Net income surged 126% year-over-year from $26.42 billion to $59.69 billion (approximately 82.7017 trillion won).
The key driver of this earnings growth was AI semiconductors. Revenue from the data center segment reached $89 billion, a 117% increase year-over-year, accounting for more than 90% of total revenue. This was driven by major tech giants such as Amazon, Google, and Meta significantly increasing their purchases of high-performance graphics processing units (GPUs) to build AI infrastructure.
NVIDIA projected that its steep growth trend would continue into the next quarter. The company’s third-quarter revenue forecast stands at $108 billion, exceeding Wall Street’s estimate of $104.86 billion. This figure excludes revenue from data center computing in China. On the day of the announcement, NVIDIA’s stock price fell 1.59% during regular trading hours but rebounded to rise 4.71% in after-hours trading.
Consequently, domestic semiconductor stocks— SamsungElectronics(005930)and SK hynix(000660)—are also rising in tandem. SamsungElectronics is trading at 270,000 won, up 8,500 won (3.25%) from the previous trading day, while SK hynix is trading at 1,778,000 won, up 90,000 won (5.33%); most of the top-market-cap stocks are on the rise.
Large-cap stocks are up 2.67% today, while mid-cap and small-cap stocks are down 0.12% and 0.09%, respectively. By sector, electrical and electronics are up 3.67% and manufacturing is up 2.95%, while electricity and gas are down 2.73% and real estate is down 1.20%.
The securities industry assesses that NVIDIA’s strong earnings report has confirmed the persistence of supply bottlenecks and AI demand through 2028. Han Ji-young, an analyst at KIWOOM Securities, predicted, “Since NVIDIA’s latest earnings have enhanced the visibility of demand for memory products such as HBM (High Bandwidth Memory) and DRAM, as well as strengthened memory manufacturers’ pricing power, investor sentiment toward the semiconductor sector—which has been a leading sector plagued by uncertainty for some time—is expected to enter a recovery phase.”
However, she added, “While market focus on the semiconductor sector may intensify again following NVIDIA’s earnings announcement, we believe the premise that sector rotation has become more pronounced in August compared to May through July remains intact,” advising that “it is appropriate to keep the door open to a wider range of sectors that could generate excess returns in the future.”
He continued, “Given that the market’s focus is shifting toward the third-quarter earnings season, this is a good time to incorporate that into sector strategies,” adding, “It is also worth considering placing sectors such as energy, machinery, IT and home appliances, steel, and transportation—which have shown improving consensus growth rates for third-quarter operating profit since August 14, the end of the second-quarter earnings season—at the top of your watchlist.”
Meanwhile, the KOSDAQ opened at 828.42, up 1.55 points (0.19%) from the previous trading day, and is currently trading at 830.40, up 3.53 points (0.43%) at the same time. So far today, retail investors are the only group showing net buying on the KOSDAQ market, with 26.6 billion won in net purchases, while foreign and institutional investors are net sellers of 16.4 billion won and 9.4 billion won, respectively. By trading type, there is a net selling position of 18.6 billion won when combining arbitrage and non-arbitrage trades.