MSCI Started as a Small Project, But Now Has Investors on Edge

Jakarta, CNBC Indonesia - MSCI will announce its latest index rebalancing for the Indonesian stock market tomorrow, Tuesday (12/5/2026). This announcement is a major focus for market players because MSCI’s decisions often influence the inflow and outflow of foreign funds in the Indonesian exchange.

In many countries, the MSCI index is known to be highly influential. When a stock enters the MSCI index, global investors typically buy that stock to align their portfolios with the index composition. Conversely, if a stock or even an entire country faces the risk of exclusion from the index, the market can immediately be shaken by selling pressure from foreign investors.

However, behind its current significant influence, MSCI actually began as a small project providing global stock market data in the late 1960s.

Quoting the official MSCI website, its emergence was inseparable from the many US investors who wanted to buy foreign stocks. At that time, however, they were confused because there was no global benchmark that could be used to measure the performance of international stock markets uniformly.

This situation prompted Capital International, a research division of Capital Group, to compile an international stock index in 1968. That index became one of the first systems to map stock performance in various countries in a measurable way.

In 1986, Morgan Stanley acquired the licence for that index and combined it with the company name. From there, Morgan Stanley Capital International or MSCI was born.

As global financial markets became increasingly integrated, MSCI, which started as a small project from one research division, developed into the primary standard for institutional investors worldwide. One of its most famous products is the MSCI Emerging Markets Index, which includes stocks from emerging countries such as Indonesia, India, Brazil, and China.

Being included in the MSCI index is considered a special prestige because it indicates that a market is deemed sufficiently viable in terms of liquidity, transparency, and investment access. The effects are also tangible. When a stock enters the MSCI index, many passive investment funds automatically buy that stock.

Due to the enormous size of global investor assets under management, even small changes in the MSCI index can move a country’s stock market.

MSCI’s major transformation occurred in 2004 when the company acquired Barra, a specialist in portfolio risk analysis. Since then, MSCI has been known not only as an index compiler but also as a provider of global investment data and risk analysis.

Now, MSCI also provides ESG (Environmental, Social, Governance) analysis services, investment risk measurement, and climate data for global investors. In Indonesia, the name MSCI has come under sharp scrutiny following an announcement regarding a temporary freeze on adjustments (rebalancing) and changes to the free float of domestic stocks in January 2026. As a result, for several days, the Composite Stock Price Index (IHSG) experienced a sharp decline.

Nevertheless, to this day, MSCI remains one of the most influential index institutions in the world. From a small project compiling international stock data, MSCI has now transformed into a “direction setter” for global investment funds.