The KOSPI, which started off lower, briefly turned positive before falling again, increasing market volatility. In contrast, the KOSDAQ also opened with a decline but managed to reverse into positive territory.


As military tensions between the United States and Iran escalated again, the New York Stock Exchange closed lower across the board, and on the 11th, the domestic KOSPI also started down more than 2%. In the dealing room at the Head Office of Hana Bank in Jung-gu, Seoul, an employee is monitoring the stock market and exchange rates. On that day, the KOSPI opened at 7,509.62, down 221.20 points (2.86%) from the previous trading day. 2026.6.11 Photo by Cho Yongjun

As military tensions between the United States and Iran escalated again, the New York Stock Exchange closed lower across the board, and on the 11th, the domestic KOSPI also started down more than 2%. In the dealing room at the Head Office of Hana Bank in Jung-gu, Seoul, an employee is monitoring the stock market and exchange rates. On that day, the KOSPI opened at 7,509.62, down 221.20 points (2.86%) from the previous trading day. 2026.6.11 Photo by Cho Yongjun

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As of 10:35 a.m. on June 11, the KOSPI index was at 7,699.27, down 31.55 points (0.41%) from the previous trading day. In early trading, the KOSPI had dropped into the 7,400 range before rebounding above 7,700, only to fall back again, highlighting the heightened volatility.


By sector, more industries were declining than rising. Seven sectors showed gains, including medical precision instruments (+6.56%), real estate (+4.98%), textiles and apparel (+2.76%), and entertainment and culture (+1.66%). In contrast, the rest of the sectors posted losses, with metals (-4.79%), telecommunications (-4.62%), construction (-4.23%), and securities (-3.97%) among the biggest decliners.


Among the top 20 companies by market capitalization, more stocks were falling than rising. SK hynix (+2.88%), SK Square (+0.68%), Samsung C&T (+0.37%), and Samsung Electronics (+0.17%) recorded gains. On the other hand, Hanwha Aerospace (-5.92%), Doosan Enerbility (-4.94%), Kia (-4.57%), and Shinhan Financial Group (-3.36%) were among the notable losers.


The KOSDAQ index was at 963.92, up 12.29 points (1.29%) compared to the previous trading day. The KOSDAQ began the session at 937.17, down 1.52% from the previous day, but then reversed to an upward trend.


By sector, more industries were rising than falling. Stocks fell in metals (-2.66%), transportation equipment and parts (-2.25%), financials (-2.05%), and construction (-0.90%), while gains were seen in machinery and equipment (+3.69%), publishing and media replication (+3.53%), entertainment and culture (+2.54%), and general services (+2.08%).



Among the top 20 KOSDAQ companies by market capitalization, more stocks were up than down. Samchundang Pharm (-4.06%), Rainbow Robotics (-3.68%), Padu (-2.81%), and EcoPro BM (-2.49%) were declining. Meanwhile, Simmtech (+23.11%), Wonik IPS (+19.02%), Jusung Engineering (+10.55%), and EO Technics (+9.59%) posted significant gains.


This content was produced with the assistance of AI translation services.

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