Collapse · S&P 500 Index (2008)
Replay the 2008 S&P 500 collapse as it fell 39.8% across 144 daily bars of the authentic dataset. Step through each trading day, face 25 decision points including 9 critical ones, and receive an AI coach review of your choices in this simulated market-replay training.
144 daily bars · 25 decision points · 2008-05 to 2008-11 · Stocks
Key facts
This window spans 206 days with a peak-to-trough drawdown of 47.3% and a 18.5% run-up.
- Max drawdown
- −47.3%
- Max run-up
- +18.5%
- Duration
- 206 days
- Largest single-day move
- +11.6%
- 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
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
The scenario places traders in the S&P 500 during the 2000s, beginning in May 2008 when the index stood at 1413.9. Over the following months, the market would experience one of its most severe contractions in modern history, as the financial system confronted cascading failures that threatened the very structure of global capital markets. Participants navigate 25 decision points embedded within this period, with 9 designated as critical nodes where outcomes diverged most sharply.
What unfolded across 144 daily bars was a sustained collapse: the index fell to 851.81, an overall decline of -39.8%. The journey was not a straight line but a series of violent reversals, with maximum drawdown reaching 47.3% and the largest single-day move spanning 11.6%. These figures underscore that volatility itself became the defining characteristic of the era, punishing both trend-followers and mean-reversion traders alike.
This replay teaches that process matters more than prediction. In an environment where the market dropped nearly half its value, adherence to risk limits and position sizing determined survival. The psychological dimension proves equally vital: hesitation during critical junctures or panic-driven exits could compound losses. Training here develops the discipline to act decisively within a defined framework, recognizing that navigating historical volatility requires neither prophecy nor heroics, but rigorous self-management under sustained pressure.
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