KOSPI Closes at Record 6,690.90 for Third Straight Session Despite OpenAI Jitters

By SONG YOONSEO Posted : April 30, 2026, 07:45 Updated : April 30, 2026, 07:45
[Photo=Aju Economy DB]

◆Aju Economy Top Stories
▷KOSPI closes at record 6,690.90 for third straight session despite OpenAI concerns
-According to the financial investment industry on the 29th, the KOSPI ended at 6,690.90, rewriting its all-time closing high. In the main board market, retail investors bought a net 167.4 billion won, and institutions purchased a net 477.7 billion won. Foreign investors sold a net 613.6 billion won, taking profits.
-Overnight, U.S. stocks finished lower, led by declines in technology shares as uncertainty tied to OpenAI weighed on sentiment. Reports said OpenAI, which is preparing for an initial public offering, failed to meet internal targets, dampening risk appetite.
-AI-related shares were hit. Nvidia fell 1.6%, while Oracle and CoreWeave, described as key cloud partners of OpenAI, slid 4.1% and 5.8%, respectively. The Philadelphia Semiconductor Index dropped 3.58%.
-South Korean stocks also opened under pressure. Samsung Electronics and SK hynix fell 1.13% and 1.23% at the open, and the KOSPI started down 0.33% at 6,619.00. Buying demand strengthened later in the session, pushing the index back into positive territory.

◆Key report
▷Late-session rebound: KOSPI extends record run to three sessions (Yuanta Securities)
-On the 29th, the KOSPI rose 0.8% and the Kosdaq gained 0.4%. Both opened slightly lower as concerns about OpenAI’s performance were reflected early.
-From mid-session, foreign buying in Samsung Electronics, which ended up 1.8%, helped lift the market. Shares tied to the AI and semiconductor value chain, including power infrastructure and energy storage systems, also posted solid gains, driving the turnaround and another record close for a third straight session.
-Strength in defense and refining and chemical shares also supported the broader market. The report said increased oil-price volatility after the UAE announced it would leave OPEC did not appear to have a major impact on equities.
-Investors were shifting attention to the Federal Open Market Committee’s policy rate decision due the next day and earnings releases from major U.S. tech companies.
 
◆Major filings after the close (29th)
▷OrganoidScience: 6 billion won capital increase via third-party allotment
▷DearU: Additional 14.7 billion won purchase of shares in U.S. unit; stake to 100%
▷DA Technology: 2.7 billion won capital increase via third-party allotment
▷SK IE Technology: 86.3 billion won investment in China separator subsidiary
▷HS Hyosung: Q1 operating profit 12.5 billion won, up 3.8% from a year earlier
▷HYBE: Q1 operating loss 196.6 billion won, turning to a loss
 
◆Fund flows (as of the 28th, excluding ETFs)
▷Domestic equity funds: +4.3 billion won
▷Overseas equity funds: -5.1 billion won
 
◆Key events today (30th)
▷South Korea: Retail sales (March), industrial production (March)
▷Japan: Industrial production (March)
▷China: Manufacturing PMI (April), services PMI (April), Caixin manufacturing PMI (April)
▷Germany: Retail sales (March)
▷Eurozone: Consumer price index (April), GDP growth (Q1)
▷United States: GDP growth (Q1), personal consumption expenditures and income (March), PCE price index (March)



* This article has been translated by AI.

Copyright ⓒ Aju Press All rights reserved.