IHSG Gains Momentum as Foreign Investors Inject Rp 11 Trillion in a Single Week

The Indonesian capital market is showing signs of a significant rebound. During the trading period of May 4-8, 2026, the Indonesia Composite Index (IHSG) managed to strengthen, buoyed by a sudden surge in foreign interest. This shift in sentiment is particularly noteworthy given the volatile start to the year, as international investors finally began recording a substantial net foreign buy.

Weekly Market Performance Overview

According to the latest data released by the Indonesia Stock Exchange (IDX), the IHSG experienced a steady climb of 0.18% over the course of the week. By the time the closing bell rang on Friday, May 8, the index settled at the 6,969.396 level. This is a modest but critical improvement from the previous week's close of 6,956.804. While a 0.18% rise might seem small on paper, it represents a stabilizing force in a market that has been searching for a solid floor.

The Friday Inflow: A Massive Rp 11 Trillion Surge

Perhaps the most striking detail of the week occurred on Friday. Despite the IHSG actually dipping 2.86% during that specific session to reach its final closing level of 6,969.396, the underlying cash flow told a different story. On that day alone, foreign investors recorded a massive net buy of Rp 11.42 trillion. This level of accumulation suggests that while the index price saw a temporary correction, institutional players were busy snatching up shares at what they perceived to be attractive valuations.

Kautsar Primadi Nurahmad, the Corporate Secretary of the IDX, confirmed these figures. He noted that despite the daily fluctuation, the overall weekly trajectory remained positive, supported heavily by this influx of international capital. This single-day buying spree has certainly caught the attention of local analysts who are looking for signs of a long-term trend reversal.

Putting the Year-to-Date Figures into Perspective

While the past week has been encouraging, it is important to look at the broader context of 2026. If we look at the cumulative data from the start of the year, the IHSG is still grappling with a significant net foreign sell of approximately Rp 37.61 trillion. This means that the recent Rp 11.42 trillion inflow is a vital step toward recovery, but there is still a long way to go to offset the capital that left the market in earlier months.

Surging Liquidity and Market Activity

Beyond just the index level, several other key indicators of market health showed impressive growth during this period. The liquidity of the exchange saw a marked increase across the board:

Transaction Volume and Value

The average daily transaction volume on the IDX jumped by 23.57%, reaching 45.86 billion shares compared to 37.11 billion shares in the previous week. More importantly, the average daily transaction value soared by 26.14%, moving from Rp 18.27 trillion to a robust Rp 23.06 trillion. This indicates that participants aren't just trading more shares; they are trading higher-value positions.

Frequency and Market Capitalization

Market participation also intensified, with the average daily transaction frequency rising by 9% to 2.55 million transactions, up from 2.34 million. Consequently, the total market capitalization of the IDX grew by 0.19%, reaching a staggering Rp 12,406 trillion, compared to Rp 12,382 trillion the week prior. This expansion in market cap reflects a growing valuation of listed companies and a cautiously optimistic outlook from the investing public as we head into the middle of the year.