Skip to main content

Boom · Nikkei 225 Index (2023)

StocksNikkei 225JPPolicy2023-01 to 2023-08Difficulty 3/5FreeView charts

The Nikkei 225 climbed from 26175.56 to 32254.56, a 23.2% rise across 144 daily bars in 2023. Replay each session, navigate 25 decision points with an AI coach, and study how foreign flows reshaped valuations in this simulated training environment.

144K lines
25Decision points
3Difficulty
DailyGranularity

144 daily bars · 25 decision points · 2023-01 to 2023-08 · Stocks

Key facts

This window spans 209 days with a peak-to-trough drawdown of 5.9% and a 30.7% run-up.

Max drawdown
−5.9%
Max run-up
+30.7%
Duration
209 days
Largest single-day move
+2.5%
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

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

The Nikkei 225 entered 2023 as a market in transition. After years of deflation and stagnant valuations, Japanese equities were attracting renewed attention from global investors seeking exposure to an undervalued market with improving corporate governance. The period from January to August presented a critical test of whether foreign capital would sustain its interest and drive a meaningful re-rating of Japan's flagship index, or whether structural headwinds would limit the upside. Understanding the policy environment and flow dynamics was essential for anyone trying to navigate this inflection point.

The index climbed from 26175.56 to 32254.56 over 144 daily bars, delivering a 23.2% gain that confirmed the bullish thesis. The advance was notably smooth, with a maximum drawdown of only 5.9% and the largest single-bar move capping at 2.5%. This combination of strong absolute returns and contained volatility created an ideal environment for systematic decision-making, though even modest fluctuations demanded disciplined responses.

The replay places participants at 25 decision points, 9 of which are flagged as critical junctures. The training value lies not in predicting the outcome but in refining the process: how to maintain conviction through noise, how to size positions when volatility is suppressed, and how to avoid overtrading in a trending market. The psychology of sitting through a 5.9% pullback while the broader narrative remains constructive is often harder than the analysis itself. This historical period serves as a laboratory for testing those instincts.