Boom · KOSPI Index (2009)
Replay 146 daily bars of the 2009 KOSPI recovery, navigating 25 decision points across an 11.3% max drawdown as the index rose 4.9%. Step through each authentic trading day, face critical choices, and receive an AI coach review of your simulated decisions.
146 daily bars · 25 decision points · 2009-09 to 2010-04 · Stocks
Key facts
This window spans 211 days with a peak-to-trough drawdown of 11.3% and a 13.7% run-up.
- Max drawdown
- −11.3%
- Max run-up
- +13.7%
- Duration
- 211 days
- Largest single-day move
- −4.7%
- 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
In the autumn of 2009, South Korea's KOSPI index entered a pivotal recovery phase as global markets emerged from the financial crisis. The period from September 10, 2009 to April 9, 2010 captured an economy navigating post-shock stabilization while central banks and governments deployed policy tools to restore confidence. For traders and analysts, this window represented a test case in reading market sentiment during a fragile upswing where the difference between caution and opportunity could define outcomes.
The index moved from 1644.68 to 1724.47, delivering a modest 4.9% gain over 146 daily bars. Beneath this headline number lay substantial turbulence: an 11.3% maximum drawdown tested portfolio resilience, while a single session surged 4.7%, embodying the sharp momentum reversals characteristic of recovery markets. Navigating 25 decision points, including 9 critical junctures, required participants to constantly reassess positions as policy signals and global data shaped intraday direction.
This replay sharpens decision-making by confronting participants with authentic volatility without the clarity of hindsight. The 11.3% drawdown teaches that recovery is rarely linear, demanding disciplined risk management even during apparent uptrends. The 4.7% single-bar moves reveal how sudden sentiment shifts can invalidate recent assumptions, forcing rapid reassessment. For decision training, the value lies in experiencing the psychological pressure of these moments, building the composure needed to execute process over emotion when markets swing.
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