Pandemic · KOSPI Index (2015)
Replay 144 days of 2015 KOSPI action from March 27 to October 23, navigating a 15.8% drawdown. Step through each session, tackle 25 decision points, and receive an AI coach review of your simulated choices.
144 daily bars · 25 decision points · 2015-03 to 2015-10 · Stocks
Key facts
This window spans 210 days with a peak-to-trough drawdown of 15.8% and a 11.6% run-up.
- Max drawdown
- −15.8%
- Max run-up
- +11.6%
- Duration
- 210 days
- Largest single-day move
- +3.0%
- 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
In spring 2015, South Korea's KOSPI index entered one of its most turbulent periods as MERS (Middle East Respiratory Syndrome) spread through the country. The replay spans 144 trading days from March 27 to October 23, placing participants in the shoes of investors who had to navigate a health crisis that disrupted consumer confidence, tourism, and broader economic activity. The benchmark sat at 2019.8 at the start, with little clarity on how far the outbreak might spread or how long markets would remain under pressure.
The headline result—a 1.0% gain from 2019.8 to 2040.4—obscures the true severity of the journey. The index suffered a maximum drawdown of 15.8% as fear swept through markets, with a single-day swing of 3.0% underscoring the panic that characterized peak periods. Investors who sold during the worst days missed the eventual recovery, while those who held or added selectively found opportunities amid the chaos. The market ultimately stabilized, but only after testing the patience and conviction of every participant.
This scenario offers 25 decision points—9 of them critical—designed to sharpen risk management and emotional discipline under sustained uncertainty. Participants practice distinguishing between genuine systemic risk and temporary panic, calibrating position sizing when volatility spikes, and resisting the urge to exit at market lows. The KOSPI MERS episode remains a textbook case of how health shocks translate into market volatility, making it an invaluable training ground for anyone studying crisis decision-making.