Boom · Nikkei 225 Index (2005)
Replay 150 daily bars of the Nikkei 225 from October 2004 to June 2005, navigating a 9.5% drawdown and 26 decision points during Japan's reform-driven recovery. Step through each session, face critical choices, and receive an AI coach review of your simulated performance.
150 daily bars · 26 decision points · 2004-10 to 2005-06 · Stocks
Key facts
This window spans 225 days with a peak-to-trough drawdown of 9.5% and a 12.3% run-up.
- Max drawdown
- −9.5%
- Max run-up
- +12.3%
- Duration
- 225 days
- Largest single-day move
- −3.8%
- 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
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 Nikkei 225 entered October 2004 at a crossroads. Japan was navigating its most ambitious structural reform program since the post-war era, with policymakers pushing corporate governance changes and banking sector consolidation aimed at reviving growth. For equity investors, this represented a rare window of institutional transformation amid persistent deflationary pressures. The market's task was to price a recovery that remained uneven and uncertain, testing the ability of participants to distinguish between genuine improvement and temporary optimism.
Over the 150 trading sessions from October 19, 2004 to June 1, 2005, the index closed at 11064.86 and finished at 11329.67, delivering a modest 2.4% gain. This headline number conceals considerably more turbulence beneath the surface. The maximum drawdown reached 9.5%, while the largest single session move hit 3.8%, creating 26 decision points throughout the period, 9 of which qualified as critical junctures. Participants faced repeated tests of conviction during the volatility, with reform announcements and economic data alternating between encouragement and disappointment.
This replay teaches that headline returns often misrepresent the true experience of a market cycle. Managing through a 9.5% drawdown while making 26 decisions, 9 of them critical, reveals how process discipline separates effective practitioners from reactive ones. The 3.8% single-session volatility underscores that price movements are less important than the quality of decisions made before and after they occur. Participants learn to separate signal from noise, maintain conviction during drawdowns, and recognize that structural reform, while promising, rarely follows a straight path to recovery.
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