Jakarta, IDN Times – The Jakarta Composite Index (JCI) faced a significant downturn during the shortened trading week following the Ascension Day holiday, with the index sliding more than 3 percent. Alongside the broader market decline, total stock market capitalization also saw a notable contraction.
Kautsar Primadi Nurahmad, Corporate Secretary of the Indonesia Stock Exchange (IDX), confirmed that trading data from May 11 to May 13, 2026, closed in negative territory.
“The JCI experienced a weekly decline of 3.53 percent, closing at the level of 6,723.320, down from 6,936.396 the previous week,” he stated in an official release on Thursday (May 14, 2026).
1. Shrinking Market Capitalization
The week-long correction in the JCI naturally weighed on the total market capitalization of the IDX. The exchange reported a total market capitalization of Rp11,825 trillion, reflecting a 4.68 percent decline compared to the previous week’s figure of Rp12,406 trillion.
2. Sharp Decline in Trading Volume
The most significant downturn was observed in the average daily trading volume, which plummeted by 22.01 percent to 35.76 billion shares, down from 45.86 billion shares in the prior week.
Activity levels also cooled, with the average daily transaction frequency dropping by 0.56 percent to 2.53 million trades, compared to 2.55 million the previous week. Similarly, the average daily transaction value saw a correction of 18.78 percent, falling to Rp18.82 trillion from Rp23.05 trillion.
3. Foreign Investors Record Rp40.8 Trillion in Net Sales
On the investor front, foreign selling pressure persisted, with international investors recording net sales of Rp1.53 trillion on Wednesday (May 13) alone. Year-to-date, foreign investors have logged a cumulative net sell value of Rp40.82 trillion, an increase from the previous week’s total of Rp37.61 trillion.
Market sentiment remains sensitive to regional shifts, including the recent removal of 18 stocks from the MSCI index, which pressured the JCI, keeping it well below its all-time high and trailing the average performance of other Asian markets. Financial authorities continue to monitor the impact of these rebalancing efforts on local stock volatility.
Summary
The Jakarta Composite Index (JCI) experienced a significant weekly decline of 3.53 percent, closing at 6,723.320. Consequently, the total market capitalization of the Indonesia Stock Exchange dropped by 4.68 percent to Rp11,825 trillion. Trading metrics also weakened, as the average daily transaction value fell by 18.78 percent and volume decreased by 22.01 percent.
Foreign investors continued their selling trend, accumulating a year-to-date net sell value of Rp40.82 trillion. This market downturn was further exacerbated by the removal of 18 stocks from the MSCI index, which heightened selling pressure. Financial authorities are currently monitoring these regional shifts as the JCI remains well below its previous record highs.
