Jakarta. Jakarta Composite Index (JCI) remained under pressure at Friday’s open, as profit-taking and global geopolitical uncertainty continued to weigh on investor sentiment.

The benchmark index opened at 7,136, down 28 points or 0.39%, trading within a narrow range of 7,116–7,145 in early deals.

In the first minutes of trading, volume reached 1 billion shares with turnover of Rp 640 billion ($37.82 million) across more than 80,000 transactions. Decliners outnumbered gainers, with 273 stocks falling, 161 rising, and 209 unchanged.

According to BRI Danareksa Sekuritas, the weakness was driven by profit-taking as geopolitical uncertainty intensified, particularly surrounding unclear ceasefire negotiations between the United States and Iran, prompting a broader risk-off stance in global markets. At the same time, external pressures, including rising energy prices such as oil and gas, along with persistent foreign selling, continue to cap the index’s upside.

Global markets also came under pressure overnight. Stocks on Wall Street dropped sharply, while oil prices surged as optimism over a potential end to the Iran war faded.

The S&P 500 tumbled 1.7%, marking its worst session since January and putting it on track for a fifth straight weekly decline, the longest losing streak in nearly four years. The Dow Jones Industrial Average fell 469 points, or 1%, while the Nasdaq Composite slid 2.4%, entering correction territory after falling more than 10% from its recent peak.

Fighting has since continued, with additional US troops moving toward the region. Iran has also tightened control over the Strait of Hormuz, a critical chokepoint through which roughly one-fifth of global oil supply passes, raising concerns over potential disruptions. Brent crude surged 4.8% to $101.89 per barrel, up from around $70 before the conflict began, while US benchmark crude rose 4.6% to $94.48.

“They better get serious soon, before it is too late,” Trump said on his social media platform, referring to Iran’s negotiators. “Because once that happens, there is NO TURNING BACK, and it won’t be pretty!”

Back in Jakarta, Kiwoom Sekuritas Indonesia noted that all sectors ended Thursday in negative territory, led by the energy sector which plunged 2.91%. “Foreign investors recorded a quite massive net sell in the regular market, reaching almost Rp 2 trillion,” the brokerage said.

Heading into the end of the week, Kiwoom advised investors to adopt a wait-and-see approach after the index failed to break its first resistance at the 10-day moving average (MA10) of 7,300, reinforcing the view that the JCI remains in a bottoming phase.

The brokerage also warned that the emerging energy crisis in several Asian countries reliant on oil flows through the Strait of Hormuz could heighten downside risks.

JCI remains vulnerable to retesting key support levels at 7,060–7,000, with the potential to slide further toward its previous low of 6,920, particularly if no swift policy response is seen from the government.

Across Asia on Friday morning, markets were broadly weaker. Japan’s Nikkei fell 1% to 53,041, South Korea’s Kospi dropped 2.74% to 5,310, Hong Kong’s Hang Seng declined 0.54% to 24,721, and China’s Shanghai Composite edged down 0.16% to 3,882.