Crisis · Hang Seng Index (2008)
Hang Seng Index plunged 41.1% from June 2008 to January 2009, climaxing the global financial crisis. Replay 146 historical trading days step by step, make decisions at 25 turning points, and receive an AI coach review of your crisis-era playbook in this simulated training environment.
146 daily bars · 25 decision points · 2008-06 to 2009-01 · Stocks
Key facts
This window spans 217 days with a peak-to-trough drawdown of 54.9% and a 41.7% run-up.
- Max drawdown
- −54.9%
- Max run-up
- +41.7%
- Duration
- 217 days
- Largest single-day move
- +14.3%
- Bars
- 146 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
The market advances day by day. You only see candles up to the current day — as if you were really there.
At key decision points choose Buy / Trim / Exit / Hold. Each decision advances the timeline by one day.
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
By June 2008, the Hang Seng Index was entering the most destructive phase of the global financial crisis. The period from June 2008 through January 2009 tested every participant in Hong Kong's equity market, as cascading failures from Wall Street to Main Street erased years of accumulated wealth. This was not a typical correction but a systemic event requiring reassessment of leverage, liquidity, and risk exposure simultaneously.
Over 146 daily bars, the index collapsed from 24402.18 to 14377.44, a decline of -41.1%. The journey was even more brutal than the headline figure suggests, with maximum drawdown reaching 54.9% and the largest single-bar move hitting 14.3%. Navigating this environment demanded decisions at 25 turning points, 9 of which proved critical to outcomes. Each session presented questions about position sizing, stop discipline, and whether to fight the trend or fade it.
This replay trains the decision process rather than predicting tomorrow's moves. Participants experience how crisis psychology distorts risk perception and how pre-committed rules can prevent reactive decisions. The 25 decision points embed lessons about drawdown management, the difference between price and value uncertainty, and why market structure breaks down when liquidity evaporates. Completing this scenario builds intuition for managing systematic risk events historically, not as spectator but as a participant with real capital at stake.
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