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Default · Jakarta Composite Index (2008)

StocksIDX CompositeIDPolicy2007-10 to 2008-06Difficulty 3/5FreeView charts

Replay 144 daily bars of the Jakarta Composite from October 2007 to June 2008, absorbing a 23.0% drawdown as global credit stress unfolds. Make your own calls at each decision point, then receive an AI coach review of your reasoning in this simulated market-training exercise.

144K lines
25Decision points
3Difficulty
DailyGranularity

144 daily bars · 25 decision points · 2007-10 to 2008-06 · Stocks

Key facts

This window spans 224 days with a peak-to-trough drawdown of 23.0% and a 20.1% run-up.

Max drawdown
−23.0%
Max run-up
+20.1%
Duration
224 days
Largest single-day move
+7.9%
Bars
144 Daily bars
Decision points
25

Every figure above is computed programmatically from this replay’s own candle series — no editorial input, no LLM. Methodology: Methodology

How to play
  1. The market advances day by day. You only see candles up to the current day — as if you were really there.

  2. At key decision points choose Buy / Trim / Exit / Hold. Each decision advances the timeline by one day.

  3. After settlement you get a six-dimension score and an AI coach review. Your result enters the scenario leaderboard.

Event Replay

What happened — and what it teaches

The Jakarta Composite Index enters the replay in late October 2007, riding on years of regional growth optimism. Over the next 144 trading days through June 2008, participants navigate a market caught between local opportunity and spreading global credit stress. The scenario captures an era when contagion from distant financial troubles could quickly rewire risk appetites across emerging Asian markets. With 25 decision points embedded in the historical data, traders must decide how to act—and react—as events unfold in real time.

What unfolded was a 9.7% decline from 2667.53 to 2410.08, yet that headline figure understates the turbulence. The maximum drawdown reached 23.0%, and volatility punctuated trading with a 7.9% single-day swing as the most extreme example. Nine of the twenty-five decision points are flagged as critical, meaning the replay forces repeated tests of conviction and timing amid shifting sentiment.

For training purposes the scenario strips away hindsight and asks: how would you actually behave under that pressure? The lesson is less about predicting direction and more about process—managing risk sizing, controlling emotional responses to drawdowns, and maintaining discipline when news flow turns hostile. These are the repeatable skills that survive any market era.