火曜日のソウル株式市場は、米国とイランがホルムズ海峡の再開で合意に達したことを受け、1.76%高で取引を開始した。KOSPIは始値で150.57ポイント上昇し、8,696.55となった。
KOSPIは午前9時の取引開始時点で150.57ポイント（1.76%）上昇し、8,696.55をつけた。夜間の米国株式市場は、ドナルド・トランプ大統領がイランとの対立を終結させる予備合意に署名し、金曜日にはホルムズ海峡が完全に開放されると発表したことを受け、急騰した。
S&P 500は1.7%上昇、Nasdaq 100は3.1%上昇し、ダウ・ジョーンズ工業株価平均は過去最高値を更新した。ブレント原油は4.76%下落して1バレルあたり83.17ドルとなり、米WTI原油は4.87%下落して1バレルあたり80.75ドルとなった。
サムスン電子は1.39%上昇、SKハイニックスは3.63%上昇した。ハンファエアロスペースは8.3%急騰した。ウォン相場は対ドルで前営業日比5.65ウォン安の1ドル＝1,517.75ウォンで取引された。
X（旧Twitter）上の初期の反応では、ホルムズ海峡の再開に向けた米イラン合意による市場の好感ムードが強調されており、KOSPIの上昇、原油価格の下落、投資家心理の改善が指摘されている。一部のユーザーは地政学的リスクの迅速な織り込みに注目する一方、韓国株への海外資金の流入や、アジア太平洋地域全域での株高に焦点を当てる動きも見られる。関連する政治的議論の中には懐疑的な見方も含まれているが、合意が市場に与える影響そのものを疑問視する声は少ない。
The market reaction highlights how quickly geopolitical risk can be repriced.
— KiiChain (@KiiChainio) 2026年6月15日
With the prospect of a U.S.-Iran peace agreement and the reopening of the Strait of Hormuz, investors immediately shifted into risk assets while oil prices moved lower.
South Korea’s KOSPI leading…
For 24 sessions, foreigners dumped Korean stocks. What pulled them back in a day wasn't earnings — it was a Middle East war ending.
— DailyWoody (@DailyWoodyNews) 2026年6月15日
A U.S.–Iran truce, and the KOSPI jumps 5.2%. The catch: the deal isn't signed yet. 🗞️
🔗 link in first reply
Global markets just ripped to records on one headline: a US–Iran ceasefire memorandum, signing reportedly Friday, with the Strait of Hormuz set to reopen. Dow +600 to an all-time high, Nikkei +5%, Kospi +5.2%. Risk-on is back. 📈 #Markets #Stocks #Iran
— rai (@rai_razwan) 2026年6月15日
#Business | Japan, Korean stocks gain on Strait of Hormuz reopening hopes
— Moneycontrol (@moneycontrolcom) 2026年6月15日
- Japan, Korea stocks rise as oil falls on peace hopes
- Kospi up 5.2%, Nikkei 225 up 3% after Strait of Hormuz news
- Oil prices dropped as US and Iran plan to sign deal June 19
Read More:… pic.twitter.com/Mzsvv3IIhz
Asia-Pac stocks jump at the open following the announcement of an interim US-Iran peace agreement to stop hostilities and open up the Strait of Hormuz: ASX 200 (+0.9%), Nikkei 225 (+2.1%), KOSPI (+4.3%)
— Newsquawk (@Newsquawk) 2026年6月15日
AIによるレポート AIによって生成された画像
South Korean stocks opened sharply higher Tuesday amid revived hopes for US-Iran peace talks after a US naval blockade of the Strait of Hormuz. The benchmark KOSPI surged 2.61% to 5,960 at open, while the won strengthened to 1,478.8 per dollar, up 10.5 won.
South Korean stocks opened sharply higher after Iran pledged safe passage through the Strait of Hormuz during a two-week ceasefire. The KOSPI benchmark rose 5.64% to 5,804.7 at the open, reaching 6.03% higher at 5,825.91 by 9:20 a.m. U.S. President Donald Trump's social media post and Iran's foreign ministry statement drove the surge.
AIによるレポート
South Korean stocks opened at a fresh record high on Monday after U.S. President Donald Trump announced plans to free ships stranded in the Strait of Hormuz, amid Washington and Tehran exchanging peace talk proposals. The benchmark KOSPI surged 2.79% to 6,782.93 at the open. Eased Middle East tensions drove the rally.
South Korean stocks opened sharply higher on Wednesday amid hopes for an end to the monthlong Middle East war. The KOSPI benchmark surged 5.49% to 5,330.04 at open, reaching 5,299.02, up 4.88%, after 15 minutes. U.S. President Donald Trump's comments on ending the Iran operation fueled the rally.
AIによるレポート
South Korean stocks opened sharply higher on Tuesday ahead of the deadline for a two-week ceasefire in the U.S.-Iran war. The benchmark KOSPI rose 1.99 percent to 6,342.76 as of 9:23 a.m., on pace to break a record. Investors are closely watching the Middle East situation alongside corporate earnings.
Seoul shares closed higher by 1.4 percent on optimism over upcoming U.S.-Iran ceasefire negotiations following a two-week Middle East truce. The KOSPI ended at 5,858.87, extending weekly gains to nearly 9 percent despite lingering geopolitical concerns. Investor sentiment improved amid positive regional developments.
AIによるレポート
Seoul shares soared more than 2 percent on April 15 to close above 6,000 for the first time since the U.S.-Iran conflict erupted in late February. The Korean won strengthened against the U.S. dollar. Hopes for U.S.-Iran peace talks and Wall Street gains drove the rally.