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Bubble · KOSPI Index (2006)

StocksKOSPIKRPolicy2006-08 to 2007-03Difficulty 2/5FreeView charts

Replay 150 daily bars on the KOSPI from August 2006 to March 2007, when the index climbed 12.1% into a 6.4% drawdown. Step through each session, weigh decisions at 26 points (9 critical), and receive AI coach feedback in a simulated environment.

150K lines
26Decision points
2Difficulty
DailyGranularity

150 daily bars · 26 decision points · 2006-08 to 2007-03 · Stocks

Key facts

This window spans 223 days with a peak-to-trough drawdown of 6.4% and a 13.8% run-up.

Max drawdown
−6.4%
Max run-up
+13.8%
Duration
223 days
Largest single-day move
−2.9%
Bars
150 Daily bars
Decision points
26

Every figure above is computed programmatically from this replay’s own candle series — no editorial input, no LLM. Methodology: Methodology

How to play
  1. The market advances day by day. You only see candles up to the current day — as if you were really there.

  2. At key decision points choose Buy / Trim / Exit / Hold. Each decision advances the timeline by one day.

  3. 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 mid-2006 the KOSPI entered a period marked by exuberant optimism, with shipbuilding sector valuations near historic highs feeding broader market enthusiasm. The replay spans August 2006 to March 2007, 150 daily bars capturing an economy riding global shipping demand while navigating the fragile psychology of a maturing bull cycle. Investors faced the delicate task of balancing participation against the risk of an inevitable unwinding.

Over the 150 trading sessions the index advanced from 1292.1 to 1448.53, a gain of 12.1%. Yet the journey was far from smooth: a maximum drawdown of 6.4% tested conviction, and the largest single-day swing of 2.9% delivered sudden jolts capable of shaking disciplined traders. At 26 decision points—9 of them critical—participants had repeated opportunities to adjust positions, tighten stops, or stand firm as momentum shifted.

The episode reinforces that volatility itself becomes a teacher when stakes are real. The 2.9% single-bar moves were large enough to unsettle unprepared participants, while the 6.4% drawdown arrived without warning and demanded psychological resilience. This replay trains the habit of questioning consensus during apparent calm, maintaining flexibility in stop-loss thinking, and recognizing when momentum signals a turn. The lesson is not to call the top but to build the discipline to respond thoughtfully when the environment changes.