Why the JCI Accelerated 1% This Morning
The Jakarta Composite Index (JCI) strengthened by more than 1% at the start of trading on Thursday (20/8/2026). The index’s rise was mainly supported by commodity and mining stocks.
Based on trading data at around 09.01 WIB, the JCI stood at 6,460.28, up 66.15 points or 1.03%. The JCI opened at 6,447.25 and touched an intraday high of 6,460.28.
By sector, basic materials posted the strongest gain at 2.10%, followed by utilities up 1.23% and energy up 1.22%.
The strengthening of the basic materials sector was one of the main pillars of the JCI as several large-cap commodity stocks recorded gains.
In terms of contribution to the JCI, PT Bayan Resources Tbk (BYAN) was the largest contributor with around 6.08 points. PT Bank Central Asia Tbk (BBCA) contributed 4.71 points and PT Amman Mineral Internasional Tbk (AMMN) 4.49 points.
Other mining stocks also supported the index, such as PT Bumi Resources Minerals Tbk (BRMS) contributing 3.97 points, PT Merdeka Gold Resources Tbk (EMAS) 3.23 points, and PT Bank Rakyat Indonesia (Persero) Tbk (BBRI) 3.11 points.
Meanwhile, the JCI’s rise was fairly solid as far more stocks were in positive territory than negative. A total of 363 stocks rose, 105 fell, and 495 were unchanged.
Transaction value at the start of trading was recorded at Rp409.3 billion, with a volume of 884.1 million shares and a frequency of 66,130 trades.
Today’s JCI trading will be influenced by a number of domestic and global sentiments. Domestically, investors are watching Bank Indonesia’s decision to hold the BI-Rate at 5.75% in its Board of Governors Meeting on 18-19 August 2026. BI also maintained the Deposit Facility at 5% and the Lending Facility at 6.5%. This policy is aimed at maintaining rupiah and inflation stability while supporting economic growth amid global uncertainty.
Externally, market sentiment received a boost from lower US Treasury yields and a weaker US dollar. Long-tenor Treasury yields eased after the US Treasury Department doubled its bond buyback programme to at least US$4 billion per operation. The US dollar index fell 0.84% to 98.83, potentially providing room for rupiah appreciation and reducing pressure on government bonds.
However, investors remain focused on the FOMC minutes showing US inflation is still high. Several Fed officials even opened the door to rate hikes if inflation does not come down. This sentiment is important amid pressure from US President Donald Trump for the Fed to cut rates.
In commodity markets, oil prices strengthened again amid rising tensions in the Middle East. WTI rose 0.77% to US$85.59 per barrel and Brent gained 0.44% to US$91.42 per barrel.
In Asia, investors are awaiting Japan’s July trade balance data and China’s Loan Prime Rate (LPR) decision. The market expects China’s 1-year LPR to remain at 3% and the 5-year LPR at 3.5%. Japan’s data is also in focus because strong imports and exports can provide a picture of regional demand conditions, including potential demand for Indonesian products.