Hang Seng Tech Uptrend Replay (2021-08-20 to 2021-09-07)
Replay 30 daily bars across a Hang Seng Tech window from August 9 to September 17, 2021, capturing a 13.7% drawdown. Step through each session, face decision points, and receive an AI coach review in this simulated training environment.
30 daily bars · 7 decision points · 2021-08 to 2021-09 · Stocks
Key facts
This window spans 39 days with a peak-to-trough drawdown of 13.7% and a 16.8% run-up.
- Max drawdown
- −13.7%
- Max run-up
- +16.8%
- Duration
- 39 days
- Largest single-day move
- +7.2%
- Bars
- 30 Daily bars
- Decision points
- 7
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 Hang Seng Tech index faced a turbulent stretch from August 9 to September 17, 2021, a period spanning 30 daily bars that tested investor conviction. The broader tech sector was under pressure from regulatory concerns and shifting global risk appetite, making this window a sharp illustration of how momentum can reverse suddenly. For participants in this replay, the central question was how to navigate an environment where established assumptions were being challenged daily.
The index closed the period at 6.39, down from an opening of 6.61, representing a net decline of -3.3%. Yet this modest headline figure obscures a much rougher journey: the maximum drawdown reached 13.7%, while the largest single-bar move hit 7.2%. Seven decision points were embedded throughout the replay, with three flagged as critical moments where directional calls or risk adjustments could have meaningfully altered outcomes.
This replay distills lessons in process over prediction. The 13.7% drawdown demonstrates how interim losses can dramatically exceed final ones, a pattern that frequently challenges trader discipline. Participants must confront psychological pressure at critical decision points, balancing adherence to a plan against the pull of near-term noise. The exercise trains situational awareness, stress management, and the capacity to distinguish between signal and volatility—skills that transfer beyond any single scenario into sustained market participation.