Deep Dive: KOSPI Breaks 7,000 on Black Monday Amid AI Profitability Concerns and Panic Selling
An in-depth analysis of the 'Black Monday' crash on July 13, where KOSPI plunged 8.95% amid concerns over AI investment profitability and panic selling by retail investors.
The Arrival of 'Black Monday': KOSPI Breaks Below 7,000 Amid Panic Selling
On July 13, 2026, the South Korean stock market experienced a historic downturn, quickly dubbed 'Black Monday.' According to Yonhap News, the KOSPI index closed at 6,806.93, plummeting 8.95% from the previous trading day. After breaking the psychological barrier of 7,000 for the first time in history just two months prior in May, the index collapsed rapidly. The extreme market fear was palpable, triggering a sell-sidecar and a Tier 1 circuit breaker during intraday trading. Online investment communities saw a massive surge in discussions regarding panic selling, reflecting the intense anxiety among retail investors trying to mitigate further losses.
Semiconductor Slump and the AI Profitability Dilemma
The primary catalyst for this massive crash was the sharp decline in semiconductor heavyweights. Leading tech stocks, including Samsung Electronics and SK Hynix, experienced steep drops, dragging the entire index down. Financial institutions and media outlets (such as Yonhap News and Munhwa Ilbo) point to a growing market skepticism regarding the disconnect between massive capital expenditures in artificial intelligence (AI) and actual profitability. While astronomical sums have been poured into AI infrastructure, the lack of immediate, tangible returns has rapidly cooled investor sentiment. Compounding this domestic tech slump was the macro-level headwind of escalating geopolitical tensions between the US and Iran.
Global Tech Shocks and Future Market Outlook
The cascading earnings concerns across the global tech sector have further amplified domestic market instability. On July 14, according to MoneyToday and other international reports, IBM suffered a severe 'earnings shock' in the New York stock market, with its stock plunging roughly 23-25% in a single day following a weak Q2 preliminary earnings warning. This drop exceeded its decline during the historic 1987 Black Monday, highlighting a structural imbalance where corporate budgets are heavily skewed toward AI infrastructure at the expense of traditional business operations. Fortunately, despite falling to the 6,400 level in early trading on July 14, the KOSPI managed to rebound and close at 6,856.83 (up 0.73%), buoyed by foreign and institutional bargain hunting. As the market navigates this period of extreme fear, investors should caution against hasty panic selling and carefully monitor upcoming H2 corporate earnings and the broader reassessment of AI investment viability.