What is IDX Composite and How Does It Work

IDX Composite is a unique investment strategy that combines the benefits of index funds and direct equity investments.

It allows investors to diversify their portfolios by allocating a portion of their assets to a diversified portfolio of stocks, bonds, and other securities.

By doing so, investors can potentially reduce their risk and increase their returns over time.

IDX Composite is designed to track the performance of a specific market index, such as the S&P 500, but with a twist: it also includes a portion of direct equity investments.

Curious to learn more? Check out: ZCCM Investments Holdings

The IDX Composite Index is a broad-based index that includes all companies listed on the IDX, making it a comprehensive representation of the Indonesian stock market.

It's regularly updated to reflect changes in the listed companies, such as new listings, delistings, and changes in free-float factors.

The index's composition is diverse, with companies from various sectors contributing to its value, making it a reliable indicator of the overall performance of the Indonesian stock market and the Indonesian economy as a whole.

Check this out: List of Companies Listed on Euronext Dublin

It serves as a comprehensive barometer for the overall health of the Indonesian stock market, enabling investors to monitor market trends, assess economic conditions, and make informed investment decisions.

The IDX Composite Index reflects market sentiment and investor confidence, making it an essential tool for both local and international investors.

For your interest: Stock Market Crashes in India

The IDX Composite index is a free-float market capitalization-weighted index, which means its value is determined by the total market capitalization of the companies it includes, adjusted for the number of shares available for public trading.

The index includes all companies listed on the IDX, regardless of their size or industry, making it a comprehensive representation of the Indonesian stock market. This diversity makes the IDX Composite index a reliable indicator of the overall performance of the Indonesian stock market and the Indonesian economy as a whole.

The index's composition is regularly updated to reflect changes in the listed companies, such as new listings, delistings, and changes in free-float factors. The base value of the IDX Composite index was set at 100 as of August 10, 1982, and serves to make the index's value more manageable and comparable over time.

Readers also liked: List of Companies Listed on Nasdaq Copenhagen

The index's value reflects the collective performance of all companies listed on the IDX, making it a crucial indicator of the Indonesian stock market's performance. Changes in the index's value can signal shifts in market sentiment, economic trends, and potential investment opportunities.

Here are some key characteristics of the IDX Composite index:

Understanding IDX Composite requires knowledge of the various indices that make up the market. The IDX Composite Index is the broadest measure, but it's not the only one.

IDX30 tracks the 30 largest and most liquid stocks on the exchange. This provides insight into the performance of the most significant players in the market.

LQ45 focuses on 45 stocks with high liquidity and market capitalization. It offers a refined perspective on the most actively traded shares, which can be particularly appealing to investors seeking stability and growth.

IDX Sector Indices allow investors to analyze performance across particular sectors. This facilitates targeted investment strategies by breaking down the market into specific areas such as finance, consumer goods, and healthcare.

IDX Sector Indices include:

The IDX Composite index includes all companies listed on the IDX, making it a broad-based index that reflects the overall performance of the Indonesian stock market.

The index's composition is regularly updated to reflect changes in the listed companies, such as new listings, delistings, and changes in free-float factors.

Companies from various sectors contribute to the index's value, including financials, consumer goods, infrastructure, mining, and more.

The index includes companies of all sizes, making it a comprehensive representation of the Indonesian stock market.

Here's a breakdown of the index's diverse composition:

The diversity of the index's composition makes it a reliable indicator of the overall performance of the Indonesian stock market and the Indonesian economy as a whole.

The IDX Composite has experienced significant daily percentage gains, with the largest being 14.03% on February 2, 1998, when the close was 554.11 and the gain was +68.17.

The index has also seen substantial point gains, with the largest being +401.27 on March 26, 2020, when the close was 4,338.90.

Technical analysis is a popular method for analyzing the IDX Composite, with many traders using it to identify patterns and trends.

The index has a robust banking sector, which supports its growth potential.

Investors can use the index to implement sector rotation strategies, shifting their investments into sectors that are currently outperforming while reducing exposure to lagging sectors.

The IDX Composite has a heavy exposure to commodity-driven sectors like palm oil, coal, and oil & gas, leaving it vulnerable to price volatility.

Here are the top 5 largest daily percentage gains:

The index has also seen significant daily point losses, with the largest being -514.48 on April 8, 2025, when the close was 5,996.14.

Investors can adopt various strategies when engaging with the IDX Composite, including investing in index funds and diversifying their portfolios.

The index has a favorable demographic profile, with a growing middle class supporting its growth potential.

Here are the top 5 largest daily point losses:

The IDX Composite index serves as a benchmark for investors and traders, allowing them to compare their portfolio's performance against the market's returns. If a portfolio's returns exceed the index's returns, it's considered outperforming the market.

For traders, the IDX Composite index can be used as a passive investment strategy by replicating the index's composition. This can be achieved through index funds and exchange-traded funds (ETFs), which track the index's performance.

Trading the IDX Composite index involves speculating on its price movements without owning the underlying stocks. This can be done through various financial instruments, such as futures contracts, options, and CFDs (Contracts for Difference).

Trend-following strategies are one approach traders can use when trading the IDX Composite index. This involves aiming to profit from the index's overall direction, but it's essential to manage risk effectively and stay informed about market developments.

The IDX Composite index has the potential to continue strengthening, and technical analysts project it will reach new records. However, a breakthrough below a certain level can trigger a weakening trend.

See what others are reading: Fidelity Total Market Index Etf

Investors can use various trading strategies when trading the IDX Composite index, including mean-reversion strategies, where they bet on the index returning to its average value. Each strategy has its strengths and weaknesses, and the choice of strategy depends on the trader's risk tolerance, investment horizon, and market view.

Traders can use technical analysis to identify potential opportunities, such as the formation of wave patterns or the breaking of fractal resistances. This can help them make informed decisions about buying or selling stocks.

Investing in IDX Composite is a straightforward process that offers several benefits.

The IDX Composite index serves as a benchmark for investors and traders to compare their portfolio's performance.

By investing in a portfolio that replicates the index's composition, you can achieve a return that closely tracks the index's performance.

This strategy is commonly used in index funds and exchange-traded funds (ETFs), which can provide a convenient and low-maintenance way to invest in the IDX Composite.

If your portfolio's returns exceed the index's returns, you're considered to have outperformed the market, which can be a great feeling for investors.

Investing in the IDX Composite can be a passive investment strategy, requiring minimal effort and research on your part.

The IDX Composite has seen its fair share of ups and downs over the years. The index has been around since 1982, with a starting closing level of 95.00.

In its early years, the IDX Composite experienced significant declines, with a 9.87% drop in 1983 and a 20.95% drop in 1984. This was followed by a 4.75% increase in 1986.

The index's performance has been marked by several notable increases, including a 269.48% jump in 1988 and a 114.61% surge in 1993. These gains have been interspersed with significant declines, such as the 40.79% drop in 1991.

The IDX Composite has also seen some impressive growth in recent years, with a 10.08% increase in 2021 and a 4.09% increase in 2022. This trend continued in 2023, with a 6.16% increase.

Here's a brief summary of the IDX Composite's performance over the past few decades:

The IDX Composite's performance has been a wild ride, to say the least.