Boom · Straits Times Index (2023)
Replay 146 daily bars of Straits Times history from August 2023, navigating a 7.3% drawdown across 25 decision points. Step into each market day, make your own choices, and receive an AI coach review of your simulated decisions.
146 daily bars · 25 decision points · 2023-08 to 2024-03 · Stocks
Key facts
This window spans 210 days with a peak-to-trough drawdown of 7.3% and a 6.2% run-up.
- Max drawdown
- −7.3%
- Max run-up
- +6.2%
- Duration
- 210 days
- Largest single-day move
- +2.0%
- Bars
- 146 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
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 Straits Times Index entered August 2023 with investors broadly anticipating a soft landing for the global economy. Over the next seven months, from 2023-08-11 to 2024-03-08, Singapore's benchmark confronted shifting sentiment while navigating 146 trading days. Within this authentic historical stretch, traders faced 25 decision points—nine of them critical inflection moments—demanding disciplined engagement with a market environment that offered no easy narrative. The stage was set for participants to test their convictions against a living record of how the STI actually unfolded.
The index closed August 11 at 3294.28 and finished the period at 3147.09, representing a net decline of -4.5%. This modest headline figure obscured more turbulent underpinnings: the maximum drawdown reached 7.3%, meaning peak-to-trough losses were substantially larger than the final result suggested. The largest single-bar move hit 2.0%, underscoring that volatility clustered in concentrated bursts rather than spreading evenly across the period. A participant who focused solely on endpoint performance would have missed the texture of stress and recovery embedded in between.
This replay teaches that surviving a drawdown requires separating outcome from process. The -4.5% final loss becomes a backdrop for examining how decisions were made under pressure at each of the 25 decision points. Managing the 7.3% max drawdown demanded sizing discipline and clear threshold awareness. The psychology piece—staying coherent when 2.0% single-day swings occur—distinguishes trained decision-makers from reactive ones. By confronting authentic STI history without financial risk, participants can build the calibrated instincts that serve them when real capital is at stake.