Indonesia's benchmark stock index opened higher on Monday, gaining 39.91 points or 0.65% to trade at 6,217.05.
The Jakarta Composite Index (IHSG) moved in lockstep with regional peers, as investors responded positively to de-escalating geopolitical tensions in the Middle East.
The market's upward bias reflects a broader shift in sentiment across Asia-Pacific equities.
Following the announcement of a framework agreement between the United States and Iran aimed at ending their ongoing conflict, global financial markets have rallied.
Investors appear to be shrugging off previous doubts regarding the fragility of the ceasefire, allowing risk assets to recover.
The U.S.-Iran deal has triggered a broad repricing of geopolitical risk, providing a tailwind for emerging market equities.