Swan.my.id Jakarta - Indonesia’s stock market closed the week with a modest gain as the IHSG rose 0.94% during the October 5–9, 2026 trading period. The composite index added 56.87 points to finish at 6,093.
The weekly performance came despite weaker trading volume and frequency. Meanwhile, the average daily transaction value increased significantly, suggesting that investors remained active in higher-value transactions.
Foreign investors, however, continued to reduce their exposure to Indonesian equities. Foreign participation fell to 23%, while domestic investors increased their share to 77% during the week.
IHSG Gains 0.94% Despite Lower Trading Activity
Based on Indonesia Stock Exchange (IDX) statistics, the IHSG moved between a weekly low of 5,995 and a high of 6,216. The index ultimately ended at 6,093, marking a 0.94% weekly increase.
However, several trading activity indicators weakened. Average daily trading volume declined 7.62% to 46.43 billion shares. At the same time, average daily transaction frequency slipped 0.27% to approximately 1.67 million transactions.
Despite those declines, the average daily transaction value increased 28.52% to Rp16.22 trillion.
The stronger transaction value helped support overall market capitalization. By the end of the week, Indonesia’s stock market capitalization had risen 0.69% to approximately Rp10,701 trillion.
This combination shows that fewer shares changed hands, but the value of transactions increased. Therefore, market activity remained relatively strong despite the decline in volume and frequency.
Foreign Investors Record Rp2.44 Trillion Net Selling
Foreign investors remained a major focus during the week. Their market participation dropped from 41% in the previous week to 23%.
Meanwhile, domestic investors increased their participation from 59% to 77%. The shift highlights the growing role of local investors in supporting the Indonesian stock market.
Foreign investors recorded net selling of Rp2.44 trillion during the week. However, the figure was significantly lower than the Rp5.03 trillion net sell recorded during the previous week.
Foreign investors accumulated approximately Rp17.56 trillion in purchases. On the other side, their selling value reached Rp20.13 trillion.
Despite continued foreign selling, the IHSG managed to close higher. This suggests that domestic market participation helped absorb some of the foreign selling pressure.
Market Valuations Edge Lower
Interestingly, the IHSG’s weekly increase was accompanied by a slight decline in market valuation multiples.
The market’s price-to-earnings (PER) ratio fell from 12.68 times on October 5 to 12.62 times on October 9.
Meanwhile, the price-to-book value (PBV) ratio decreased from 1.63 times to 1.62 times.
The decline in these valuation indicators suggests that the market’s earnings and book-value metrics continued to provide some support even as the index moved higher.
However, investors will likely continue monitoring corporate earnings, interest rates, foreign flows, and global market sentiment as key factors for the next trading sessions.
AKKU Leads Weekly Top Gainers
Several individual stocks recorded significant gains during the week. AKKU became the strongest weekly gainer after its share price jumped 102.50% to Rp81.
The other major weekly gainers included:
- AKKU: +102.50% to Rp81
- ASMI: +85.71% to Rp39
- STRK: +59.62% to Rp83
- KKES: +57.69% to Rp82
- ALKA: +55.91% to Rp7,125
The sharp gains among these stocks demonstrate that the broader market’s modest 0.94% increase did not fully reflect movements across individual equities.
Some smaller stocks experienced considerably stronger price appreciation, while others suffered deep corrections.
DOOH Leads Weekly Top Losers
On the losing side, DOOH recorded the deepest weekly decline. Its share price dropped 26.23% to Rp270.
The other stocks among the biggest weekly losers were:
- DOOH: -26.23% to Rp270
- INTD: -22.68% to Rp300
- TRIN: -21.54% to Rp204
- SONA: -18.35% to Rp3,070
- KOTA: -16.88% to Rp128
- UANG: -16.53% to Rp2,980
The wide gap between the strongest gainers and biggest losers highlights the divergent performance among Indonesian stocks during the week.
In other words, investors could not rely solely on the direction of the IHSG to assess individual stock performance.
MORA Becomes the Biggest IHSG Leader
Among stocks that contributed most to the IHSG’s weekly performance, MORA emerged as the leading contributor.
MORA gained 11.88% during the week and contributed 9.24 points to the index. Its performance made the stock the biggest positive contributor among the market’s top leaders.
ASII ranked second after rising 4.10%, contributing 7.71 points to the IHSG.
AMMN followed with a 4.01% increase and a 6.48-point contribution. TLKM also strengthened 3.11%, contributing 6.45 points to the index.
Meanwhile, EMAS gained 5.19% and contributed another 3.70 points.
The top leaders were therefore:
- MORA: +11.88%, contribution +9.24 points
- ASII: +4.10%, contribution +7.71 points
- AMMN: +4.01%, contribution +6.48 points
- TLKM: +3.11%, contribution +6.45 points
- EMAS: +5.19%, contribution +3.70 points
BREN Becomes Biggest Drag on IHSG
On the other hand, BREN became the largest negative contributor to the IHSG during the week.
BREN declined 4.59% and reduced the index by 5.05 points. BBCA followed after falling 0.82%, resulting in a negative contribution of 4.55 points.
CUAN also pressured the index after its share price dropped 8.88%, contributing a negative 3.62 points.
UNTR completed the leading list of top laggards after declining 4.62% and reducing the IHSG by 3.39 points.
The largest negative contributors were therefore:
- BREN: -4.59%, contribution -5.05 points
- BBCA: -0.82%, contribution -4.55 points
- CUAN: -8.88%, contribution -3.62 points
- UNTR: -4.62%, contribution -3.39 points
What the Weekly IHSG Performance Means for Investors
The latest weekly performance presents a mixed picture for the Indonesian stock market. The IHSG managed to gain 0.94%, but foreign investors remained net sellers.
At the same time, domestic investors increased their market participation substantially. This could become an important factor for the market if foreign selling pressure continues.
The rise in average daily transaction value is also worth watching. Although trading volume declined, the 28.52% increase in transaction value indicates that capital continued to move through the market.
However, investors should remain selective because individual stock performance varied significantly. Some shares gained more than 100%, while others dropped more than 20% in the same week.
For the next trading period, investors may continue watching foreign fund flows, domestic participation, corporate earnings, global market sentiment, and movements in leading index constituents.
For now, the IHSG has demonstrated resilience by closing the October 5–9 week higher despite persistent foreign net selling and weaker trading frequency.