Korean airline shares rose while shipping stocks declined as reports of a possible ceasefire between the United States and Iran raised hopes of easing tensions in the Middle East. Hanjin KAL was trading at 128,400 won, up 4.99%, and Korean Air gained 4.18% to 27,400 won as of 11:10 a.m. on the 26th, according to the Korea Exchange. HMM fell 5.58%, Pan Ocean dropped 12.23% and STX Green Logistics declined 10.91%. RIA Novosti reported overnight that the United States and Iran had agreed to a ceasefire, citing a Pakistani military source and an Iranian security source, with the arrangement said to include free navigation through the Strait of Hormuz and an announcement within days. A de-escalation could stabilize oil prices and support airline profit margins, while reducing shipping freight rates that had risen because of route changes and other factors. Brent crude and West Texas Intermediate (WTI), a U.S. oil benchmark, fell overnight in New York, while U.S. Treasury yields steadied. Construction shares also advanced on expectations of reconstruction work. Hyundai Engineering & Construction jumped 7.67% and GS Engineering & Construction rose 7.57%; Hyundai Engineering & Construction, GS Engineering & Construction and DL E&C are reported to have previously won construction contracts in Iran, potentially positioning some Korean companies for reconstruction projects if a peace agreement is reached.