Friday was rough
If you opened your trading app on Friday (16 Oct) and wanted to throw your phone, you weren’t alone.
IHSG closed down 11.57% at 5,185. That’s its worst single day since January 1998, worse than Black Wednesday in 2008. The market dropped 8% straight at the open, so the exchange paused trading for 30 minutes. Once trading resumed, the selling only got heavier. All 11 sectors ended in the red, and big names like BBCA, BBRI, BMRI and TLKM got hit the hardest.
So what happened?
The short version: MSCI.
MSCI runs the global stock indexes that big international funds follow. Early Friday morning (Jakarta time), MSCI announced it wants to move Indonesia out of the “Emerging Market” group into a “Standalone Market” category. That’s a level below even “Frontier Market.”
Why does that matter? Many big foreign funds are only allowed to hold markets that sit inside MSCI’s Emerging Market index. If Indonesia gets moved out, those funds would have to sell. UBS estimates up to around US$19 billion could leave.
MSCI’s complaint isn’t new. Since January it has been worried about:
Unclear share ownership (who actually owns what).
Low free float in many stocks.
Possible coordinated trading.
What surprised the market is that MSCI moved earlier and harder than expected. Everyone was watching the November review, and the expected downgrade was to Frontier, not Standalone.
A few other things made it worse:
The rupiah broke Rp18,000 per US dollar.
IHSG was already down a lot this year, so many investors were already tired.
Once the big caps got stuck at the daily lower limit (ARB), people who needed cash sold whatever else they could.
“Indonesia’s companies earn the same today as they did yesterday. What changed overnight is who is allowed to own them — and the market is repricing that, not profits.”
Is this like 1998?
Not really. In 1998 the rupiah collapsed and banks went down. This time the economy didn’t break overnight. The issue is about how our stock market is run and whether global funds are allowed to own it.
That’s the good news and the bad news:
Good: company profits didn’t suddenly disappear.
Bad: this kind of problem doesn’t get fixed with a rate cut. The market needs regulators to show real, visible reforms. After the January MSCI shock, there was no quick bounce back.
The final MSCI decision is due by June 2027. But don’t read that as “it’ll probably be fine.” MSCI said it expects to go ahead with the downgrade unless it sees clear proof that things have really improved. Right now, Standalone is the default outcome, not the worst case.
The real risk: what if MSCI actually does it?
This is the part worth thinking about. If Indonesia ends up as a Standalone Market:
Index funds would have to sell. Funds that track MSCI’s Emerging Market index can’t hold Indonesian stocks anymore. UBS estimates around US$4 billion from these funds alone.
Active funds could follow. Many fund managers are measured against that same index. If Indonesia isn’t in it, there’s less reason to own it. UBS puts this at up to US$15 billion more.
Fewer buyers, for longer. Fewer foreign buyers usually means lower trading activity and lower valuations, even for good companies. This isn’t a one-day drop. It could weigh on the market for years.
It would be a club nobody wants to join. The current Standalone markets are Argentina, Lebanon, Palestine and Ukraine. Indonesia would be by far the biggest economy in that group.
What could stop it? Regulators showing real, visible results before MSCI decides: clearer ownership data, higher free float, and actual enforcement against manipulation. Promises won’t be enough. MSCI has said it wants to see the changes actually put into practice.
So the honest summary: the risk is real, the outcome isn’t final, and the next few months of reforms matter a lot more than what IHSG does on Monday.
What are the authorities doing?
On Friday, OJK, the DPR, Danantara and the police held a joint press conference at the IDX. They said reforms have been running since January and will continue. OJK has sanctioned 835 parties this year and is looking into dozens of stocks with concentrated ownership. Danantara said it sees the drop as a long-term opportunity, but it hasn’t announced any amount or timing.
Dates to watch
Monday, 19 Oct: first trading day after the crash. Expect it to be volatile.
20–21 Oct: Bank Indonesia’s monthly meeting.
27–28 Oct: US Federal Reserve meeting.
11 Nov: MSCI’s regular November index review.
By 30 Jun 2027: MSCI’s final decision.
So… what now?
We’re not licensed advisors, so this isn’t a buy or sell call. It’s how we’re thinking about the week ahead:
Panic selling rarely ends well. Selling when everyone is rushing for the exit usually gets the worst price. Investors who do need to sell often use a limit order rather than a market order.
Margin is where the real risk is. If you use margin, this weekend is a good time to check your position with your broker and know when a forced sale could happen.
Cold money changes the picture. For money that won’t be needed for years, some investors use drops like this to slowly build positions in solid, well-known companies, in small steps rather than all at once.
Waiting is a valid choice. Without spare cash, sitting tight is fine. Nobody catches the exact bottom.
“Cheap” isn’t the same as safe. Small caps with unclear ownership are exactly what MSCI is worried about, and they can fall the furthest.
Long-term fund holders often find that redeeming at the low just locks in the loss.
Is my money safe?
Yes. Your RDN is a bank account in your own name, separate from your broker’s money. Your shares are recorded in your own account at KSEI. A stock market crash doesn’t change that.
Disclaimer: This article is for education only, not investment advice. SahamTalk is not a licensed investment advisor. This article reflects information available as of Friday, 16 October 2026, and will not be updated. Conditions may have changed since then, so always check the latest information before making any decision.