Commodity Shock · S&P 500 Index (2020)
Replay 144 daily bars of the S&P 500 from December 2019 to June 2020, navigating a 33.9% max drawdown and rare 12.0% single-session swings. Step through each market day, make choices at 25 decision points (9 critical), and receive an AI coach review of your simulated reasoning.
144 daily bars · 25 decision points · 2019-12 to 2020-06 · Stocks
Key facts
This window spans 209 days with a peak-to-trough drawdown of 33.9% and a 44.5% run-up.
- Max drawdown
- −33.9%
- Max run-up
- +44.5%
- Duration
- 209 days
- Largest single-day move
- −12.0%
- 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 replays 144 daily bars of the S&P 500 from December 2019 to June 2020, a period that would become one of the most turbulent in modern market history. Participants navigate through the transition from the 2010s into the 2020s, confronting a market that would test every trader's resolve. The era was defined by unprecedented uncertainty, as financial markets faced a convergence of health, economic, and policy shocks that would reshape investment landscapes for years to come.
The S&P 500 traced a harrowing path, suffering a maximum drawdown of 33.9% before recovering. The market witnessed extreme single-session volatility, with the largest single-bar move reaching 12.0%. Yet despite this turmoil, the index closed at 3100.29 on June 30, 2020, nearly matching its December 4, 2019 close of 3112.76, resulting in a modest -0.4% net decline over the entire 144-bar sequence. The contrast between the violence of the internal price action and the final outcome underscores how quickly conditions can shift.
This replay places participants at 25 decision points, including 9 critical junctures where conviction and process matter most. The scenario teaches that surviving a 33.9% drawdown requires disciplined position sizing and emotional equilibrium. It also reveals how a 12.0% single-session move can test even well-prepared traders. The educational value lies in practicing systematic decision-making under stress, building the habits and self-awareness that no historical backtest alone can instill.