Daily Briefing · 2026-10-09

This is the largest-ever performance, up 782.5% year-on-year, but the stock price actually fell 2.42% due to weakness in AI tech stocks. The KOSPI is trading sideways around the 6600 level, down about 30% from its June peak, struggling to gain momentum. The three major negative factors cited are the concentration in large-cap AI stocks, won strength, and the outflow of 28 trillion won in foreign capital over the past month. In the US, OpenAI's annual revenue outlook was revised down from $70 billion to $50 billion, reigniting concerns about an AI bubble, and the Nasdaq plunged nearly 1.3%. Meanwhile, SK Group Chairman Chey Tae-won personally inspected the Gwangju semiconductor site, accelerating efforts by simultaneously building a factory two-thirds the size of the Yongin plant. Coupang suffered a system outage for 2 hours and 30 minutes in the early morning, completely paralyzing Coupang, Coupang Eats, and Coupang Play services and affecting tens of millions of users. Coupang moved to compensate users with Coupang Cash, but the delivery workers' union and others are demanding fundamental regulation of platform monopolies. In the financial sector, a significant number of hacking attacks originating overseas failed to identify the attackers, and growing distrust over security has emerged after it was revealed that Yegaram Savings Bank had downplayed the scale of a data breach. The US fiscal deficit approached $2 trillion, the largest since 2021, while domestically, concerns over fiscal soundness were also highlighted as the combined debt of local governments nationwide exceeded 58 trillion won. The president's approval rating remains stagnant at 37% amid disputes over leveraged ETF losses and controversy over tax reform proposals. In the retail sector, news that Starbucks was considering acquiring Chipotle sent Chipotle's stock surging, while Starbucks shares fell on concerns over financial strain. In the investment market, as the semiconductor sector lost momentum, secondary battery theme ETFs dominated the top rankings in returns, drawing attention. In the real estate market, Seoul apartment prices rose for a 87th consecutive week, setting the longest streak on record, and a shift in asset value between ultra-high-end complexes and the southern Gyeonggi region was also observed. On the labor front, the labor-management conflict at Hanwha Ocean has reached a stalemate, raising concerns over production disruptions. In the auto industry, Hyundai's Nexo expanded its share in Japan's hydrogen vehicle market, while Kia performed well on the back of strong global sales.