Last Friday, a private company with approximately 5,000 employees in New York issued two statements.
By Monday morning, one country’s stock market had fallen to its lowest level in six years. Another had already lost 23% from its peak. Combined, the two markets faced the prospect of billions of dollars in forced selling that could make both situations significantly worse.
The company that caused this is called MSCI.
If you’ve never heard of it, you’re not alone. Many retail investors haven’t. And yet MSCI has more power over the movement of global stock markets than almost any central bank, government or regulator on earth.
Understanding what it is, what just happened, and why it matters, is one of the most useful things you can learn about how global markets actually work.
Who are MSCI and why it’s so powerful
MSCI stands for Morgan Stanley Capital International. It was spun off from Morgan Stanley and became an independent publicly listed company in 2007.
Its business sounds simple – create indices. Lists of stocks from different countries and regions, weighted by market capitalisation, packaged into benchmarks that investors can use to measure performance.
The reason this creates almost incomprehensible power is what happened next.
The global investment industry built trillions of dollars of products (ETFs, index funds, pension fund mandates) that track MSCI’s indices. When your pension fund buys an “emerging markets” product, it’s almost certainly buying stocks weighted according to MSCI’s Emerging Market Index. When a global ETF tracks “world equities,” it uses MSCI’s ACWI Index.
So, there’s a good chance you own ETFs that track MSCI’s indices.
The numbers are staggering. Approximately $4.5 trillion in assets is benchmarked to MSCI’s Emerging Market Index alone. When MSCI decides a country belongs in that index, money automatically flows in. When it decides a country doesn’t belong, money automatically flows out.
Not because fund managers made an investment decision. Because the rules of their mandates require them to sell. That’s the mechanism. And it’s why two MSCI statements last Friday were all it took to destroy billions in market value by Monday morning.
What happened in Turkey and Indonesia?
The two stories are related but different.
Turkey was hit first. In September, Turkey’s financial regulator ordered the liquidation of 131 investment funds after prosecutors began investigating the manipulation of thinly traded stocks through those funds. It was a genuine market integrity scandal. Fund managers apparently using client money to inflate the prices of illiquid stocks in a coordinated scheme.
MSCI’s response was swift. On October 15, it froze changes to its Turkey indexes. So, no new Turkish stocks will be added, and no existing stock’s weighting will be increased.
It then issued a warning: if sufficient progress on market integrity isn’t evident by June 2027, MSCI will consider reclassifying Turkey from Emerging Market to Frontier or Standalone status.
Turkish stocks have already fallen 23% since MSCI issued its first warning in June. The freeze announced last week isn’t a downgrade – think of it as a yellow card. But the market is already pricing significant risk that the red card follows.
Indonesia’s situation is worse and moving faster
Indonesia has been under MSCI scrutiny since January 2026, when the index provider first flagged concerns about opacity in shareholding structures and suspected coordinated trading behaviour. Indonesia’s regulator promised reform. Apparently, it hasn’t arrived.
Last Friday, MSCI didn’t just warn Indonesia. It launched a formal consultation to reclassify Indonesia directly from Emerging Market to Standalone Market status – skipping the intermediate Frontier Market category entirely.
The reason?
Market participants told MSCI that even a downgrade to Frontier wouldn’t properly recognise “the depth of the market problems.”
The Indonesian stock market plunged over 5% on Monday to its lowest level in six years. It’s now down more than 30% year-to-date and more than 35% in US dollar terms – making it one of the worst-performing stock markets in the world.
Goldman Sachs estimated on Sunday that a full removal from MSCI’s emerging market indexes could trigger approximately $5.6 billion in passive fund outflows. That’s equivalent to 18 days of average daily trading volume. On top of that, Goldman estimates that active funds hold more than $8 billion in Indonesian equities. Those managers have discretion, but when the passive selling starts, discretionary sellers tend to follow.
As if that wasn’t enough, S&P Dow Jones Indices (MSCI’s largest competitor) has now also placed Indonesia on its watchlist for a potential downgrade.
Why this matters even if you’ve never touched either market
The direct impact for most South African investors is limited. Few retail portfolios have meaningful direct exposure to Turkish or Indonesian equities.
But there are three indirect implications worth taking seriously.
First, emerging market contagion. When major emerging markets fall sharply, global fund managers reassess their overall emerging market exposure. South Africa is a constituent of the MSCI Emerging Market Index. When fund managers reduce emerging market allocations broadly, which tends to happen when a few large EM markets are in crisis, the rand and JSE-listed rand-hedge assets feel the pressure.
Watch the rand in the coming weeks.
Second, the warning about governance. MSCI is making a very specific statement with its actions on Turkey and Indonesia: governance failures have consequences that capital markets will price ruthlessly. Markets that allow manipulation, opacity and coordinated trading schemes will eventually see that behaviour reflected in their index status, and in the billions of dollars that leave as a result.
South Africa’s own JSE governance standards, by contrast, are among the most rigorous in the emerging market world. That quality becomes more visible when peer markets are being punished for its absence.
Third, the lesson about index power. This story illustrates something that every investor in passive products (ETFs, index funds, retirement fund products tracking benchmarks) should understand.
The index providers aren’t neutral referees. They’re decision-making organisations with enormous economic consequences attached to their judgements. When they move, markets move. Understanding which indices your investments track and what the classification rules are for those indices is good portfolio risk management.
Not a subscriber to Money Morning?
You can get free daily recommendations like these with Money Morning eletter. Just sign up here.
