CSI 300 Downtrend Replay (2021-05-27 to 2021-07-27)
Replay the CSI 300 correction spanning 86 daily bars from April 22 to August 25, 2021, with the index sliding from 5.09 to 4.97. Step through each trading day, tackle 11 decision points, and receive AI coach feedback in this simulated training environment.
86 daily bars · 11 decision points · 2021-04 to 2021-08 · Stocks
Key facts
This window spans 125 days with a peak-to-trough drawdown of 10.1% and a 7.0% run-up.
- Max drawdown
- −10.1%
- Max run-up
- +7.0%
- Duration
- 125 days
- Largest single-day move
- −3.5%
- Bars
- 86 Daily bars
- Decision points
- 11
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 mid-2021, the CSI 300 entered a correction phase that would test investor discipline across the 2020s. This replay covers 86 daily bars from April 22 to August 25, 2021, a period when the index retreated from recent highs. Participants navigate this uncertain environment with simulated capital, facing authentic historical price action and the challenge of making decisions without knowing what comes next.
The index closed at 4.97, down from an opening of 5.09, representing a -2.4% decline over the full span. Beneath that modest headline figure lay a rougher journey: the max drawdown reached 10.1%, meaning peak-to-trough losses far exceeded the final percentage change. The largest single-bar move of 3.5% created sharp reversal moments requiring quick assessment. Across 11 decision points, including 4 deemed critical, traders confronted turning points where direction was far from obvious.
This correction scenario trains participants to manage risk when drawdowns exceed expectations, a common reality in live markets. The gap between the -2.4% total loss and the 10.1% max drawdown illustrates why holding through volatility demands robust position sizing and emotional control. Facing unpredictable intraday swings of 3.5%, traders must resist reactive decisions driven by fear or greed. The 4 critical decision points serve as concentrated moments to practice conviction, discipline, and the process of acting on incomplete information—a core skill in any market environment.