Default · S&P 500 Index (2008)
Replay the 2008 S&P 500 collapse from May to December, watching the index fall 39.8% across 144 daily bars. You make decisions at 25 key moments and receive AI coach feedback in this simulated, educational market-replay.
144 daily bars · 25 decision points · 2008-05 to 2008-12 · Stocks
Key facts
This window spans 205 days with a peak-to-trough drawdown of 47.3% and a 19.1% run-up.
- Max drawdown
- −47.3%
- Max run-up
- +19.1%
- Duration
- 205 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 U.S. equity market entered a period of extraordinary stress from May to December 2008, a time when the S&P 500 confronted one of its steepest structural declines of the 2000s. Investors, portfolio managers, and traders faced mounting uncertainty as credit market dysfunction rippled through the broader economy. Every decision carried weight, as the index that had anchored retirement accounts, institutional portfolios, and individual wealth stood at a precarious crossroads.
The decline proved severe and relentless. Across 144 daily bars spanning from May 13 to December 4, the S&P 500 fell from 1403.04 to 845.22, an aggregate loss of 39.8%. The maximum drawdown reached 47.3%, with individual sessions swinging as much as 11.6%. Navigating this terrain demanded decisions at 25 distinct points, of which 9 proved critical to outcome trajectories. The scale and speed of moves challenged even experienced participants.
This replay cultivates disciplined process under duress, sharp sensitivity to risk metrics, and psychological awareness of how fear and uncertainty distort judgment. Trainers learn to respect maximum drawdown thresholds, size positions relative to historical volatility, and resist reactive selling at market extremes. The educational value lies not in predicting the next crisis but in building replicable decision frameworks that hold under genuine pressure.
Featured in the archive